Step-by-step explanation:
a. Belle as she only missed 50 questions where as Aurora missed 78. (500-450) and (650-572)
b. Belle scored 90% (450/500=0.9)
Answer:
a. Belle scored better, by scoring 2% more than Aurora.
b. She scored 90%
Step-by-step explanation:
Make your denominator out of a 100
So you will divide by 6,5
572÷6,5/650÷65
= 88/100
=88%
And divide the other by 5
450÷5/500÷5
=90/100
=90%
1. Ryan is washing windows on a skyscraper. He lowers himself six times,
going down an equal distance each time. In all, Ryan lowers himself 48 ft.
What integer represents the change in Ryan's position each time he lowers
himself? *
Answer:
Ryan went down a total of 8 times
Step-by-step explanation:
He goes down 6 times 48/6 = 8
PLEASE HELP IM BEGGING YOU!!! Team Integrity kids were supposed to go on a field trip to an ice rink. The cost was $12 per student for tickets, and $10 per student for food. The team paid $50 for buses. Write an expression to represent the total cost of this field trip for the entire team. Identify what your variable represents. *
21 x ________ ÷ 3 = 21 *
1. 7
2. 21
3. -3
4. 3
b x h ÷ h = ________ *
1. a
2. h
3. b
4. c
876 x 3.2 ÷ ______ = 876 *
1. 3.2
2. 876
3. -3.2
3. 1
what are the answers?
Answer:
first one: 3
second one: b
third one: 3.2
Step-by-step explanation:
first one:
21 x ________ ÷ 3 = 21
rewrite equation:
21 ÷ 3 x ___ = 21
7 x ___ = 21
(21 / 7 = 3)
7 x 3 = 21
second one:
b x h ÷ h = ___
B
third one:
876 x 3.2 ÷ ______ = 876
2803.2 ÷ ___ = 876
(2803.2 / 876 = 3.2)
2803.2 x 3.2 = 876
Someone help me, for a grade.
Answer:
The answer is D
Step-by-step explanation:
When finding volume you multiply three things length, width, and height.
PLS HELP ME IM AWARDING BRAINLIEST!
Answer:
First option: 336
Step-by-step explanation:
To find the answer, separately solve for each of the shapes.
1. The base is the square so length times width is the formula:
12 x 12 = 144
144 is the area of the square
Next, find the 4 triangles which are congruent(the same).
Triangle area formula: Base x Height divided by 2.
So, the area of 1 triangle is 12 x 8 =96
96/2 = 48
Area =48
Because there are 4 triangles, do 48 x 4=192.
Finally, add the area together and you should get 192+144 =336 ft^2
Surface area = 336 ft^2
What is 3 divided by 6 Keep change flip?
Step-by-step explanation:
Multiply by the reciprocal, also sometimes referred to as "Keep, Change, Flip." Here is how it works. You rewrite the division question as a multiplication question by flipping the second fraction over. Next, keep the first number, change the division to multiplication and then flip the second fraction over.
ppppppplllllzzzzzzzzzz huuuuuuurrrrrryyyyyyyyyyyy What is missing from the frequency chart below?
A. the tallies are missing
B. the title is missing
C. the total is missing
D. there is nothing missing
Answer: A
Step-by-step explanation:
A
I think, i looked it up, im sorry if im wrong. I tried.
Answer:
A
Step-by-step explanation:
Adam can buy pencils in packages of 12 for $2.19, 40 for $3.99, 50 for $4.75, or 100 for $10. How many pencils are in the package with the lowest unit cost
Answer:
50 pencils
Step-by-step explanation:
2.19/12 = .18
3.99/40 = .09975
4.75/50 = .095
10/100 = .10
Although with mark-up to the hundredths place, there wouldn't be a logical difference is stores...
Answer:
50 for $4.75
Step-by-step explanation:
First step is to determine the unit cost of each pencil:
price of pack / number of units = cost per pencil
1. $2.19 / 12 = $0.1825
2. $3.99 / 40 = $0.09975
3. $4.75/ 50 = $0.095
4. $10 / 100 = $0.10
The correct answer is $4.75 for 50 pencils because it is the lowest per unit cost.
Which method would be the best (quickest) for solving the system?
6x + 4y = -10
-6x + 5y = 1
Substitution
Elimination
Answer:
elimination.
Step-by-step explanation:
6x-6x eliminates and then you just have to simplify the expression. then plug whatever you got for y into one of the expressions and then you have an answer.
a sum of money was divided between two friends, karen and Natasha in the ratio 2:5. If Natasha received $120 more than karen, find the sum of money shared
Answer:
$600
Step-by-step explanation:
Let x be the total amount divided
Karen gets (2/7) x
Natasha gets (5/7) x
(5/7) x = (2/7) x + 210
Multiply both sides by 7
5x = 2x + 1470
3x = 1470
x = 490
Natasha gets (5/7) (490) = 350
Karen gets (2/7)(490) = 140
The difference in ration is 5 - 3 = 2. So divide 150 by 2 to get the amount for each part of the ratio which is 75. the total ration is 3 + 5 = 8. So to get the total original sum of money, multiply 75 and 8 which is $600. for each person just multiply 75 with their respective ratios. For A: 75 X 3 = $225. For B: 75 x 5= $375. To check that it is correct add 225 and 375, and you should get 600.
according to my calculations, the starting amount will be 600
Answer:
$280
Step-by-step explanation:
Ratio = 2 : 5
Karen's Share = 2x
Natasha's share = 5x
Natasha received $120 more than karen.
5x = 2x + 120
5x - 2x = 120
3x = 120
x = 120/3
x = 40
Karen's share = 2*40 = $ 80
Natasha's share = 5*40 = $ 200
Sum of money = 80 +200 = $ 280
i need your guys help i don’t know nun abt this at all
Answer:
1) 2² + 5² = ?²
2) 6² + ?² = 9²
3) 8² + 16² = ?²
4) 8² + ?² = 10²
Step-by-step explanation:
Because these are all right triangles, we can use the Pythagorean Theorem:
a² + b² = c²
Where c is the hypotenuse, the longest side of the triangle. It can be identified as being across from the right angle of the right triangle.
The legs are the two other sides of the triangle and they are interchangeable when placed in the Pythagorean Theorem.
Subtract 2.2 and 41.5
Answer:
if you're doing 2.2 - 41.5 your answer is - 39.3
if you're doing 41.5 - 2.2 your answer is 39.3
Step-by-step explanation:
A 60$ purse is on sale for 10% give the sell price
Answer:$54
Step-by-step explanation:
60(0.9) = $54
answer:
$54
step-by-step explanation:
sale means a decrease from the original amountsince there is a sale of 10%, we would multiply by 90% since we are trying to find the sale price60 X 90% - - > 60 X 0.90
you can convert 90% into 0.90 so it is easier to multiply60 X 0.90 = 54
= $54
A "triply" number is a two digit number equal to three times the product of its digits. List all the triply numbers.
Answer: ONLY 15, and 24 there are not more 2 digit triply numbers i have checked all the 2 digits numbers ranging from 10 to 99
Yes there are only 2 triply numbers! Isnt it shocking! I have tried for 2 digit triply numbers from 10 to 99! Yes i did that! Lets go through a basic idea first the product of its digits mean that you mulitply whatever number your checking for a triply number. Example: your checking 15 for a triply number so 1 x 5 = 5 ( you multiply the digits in the 2 digit number to find the product of its digit)! What does 3 times the product of its digits then? hmmmmm. we know that 15's product of its digit is 5 so we mulitiply 5 x 3 because it says three times the product of its digits.
Step-by-step explanation:
15 = 1 x 5 = 5 (we do 1 x 5 because we need to find the product of its digits and to do that we multiply the digits together in the 2 digit number).
5 x 3 = 15 (we multiplied 15 x 3 because it says 3 times the product of its digits. we know the product is 5 and 3 times is multiply by 3 so we do 5 x 3 which equals to 15).
So 15 is a triply number because in the second step when we multiplied 5 x 3 we got 15; and we were checking if 15 was a triply number; because we got 15 as the answer in the second step it is a triply number).
24 = 2 x 4 = 8
8 x 3 = 24
so we got 24 as the answer again in the second step which means that 24 is a triply number.
In short, you multiply the digits in the number then whatever you get as the answer you multiply it by 3. if you get the digits from te number that you multiplied then you know that number is a triply number. from the number 10 to 99 there are ONLY 2 NUMBERS. I saw people only give 2 numbers online and i was like why does no one give all the triply but in reality there are only 2 triply numbers which are 2 digits. You can check for yourself if you dont believe me using the method above. Thank you! I hope it helped if it helped please give me a thumbs up!
We will find that the "triply" numbers are:
-15, 15, -24, 24.
How to find the "triply" numbers?We know that these aer two-digit numbers, so we can write them as:
a*10 + b
Where a and b are single-digit numbers.
A "triply" number is equal to 3 times the product of its digits, then we must have:
a*10 + b = 3*(a*b)
Moving all to one side, we have:
10a + b + 3ab = 0
So a "triply" number must meet the above criteria.
Now, the values that can take b are all the single-digit values {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
So now we need to evaluate b and find the possible vales of a.
if b = 0, then:
10*a + 0 - 3*a*0 = 0
10*a = 0
Then a = 0, but this will not give a 2-digit number.
if b = 1 then:
10*a + 1 - 3*a*1 = 0
10*a - 3a = -1
7*a = -1
a = -1/7
This is not a single-digit number.
if b = 2
10*a + 2 - 3*2*a = 0
4*a = -2
a = -2/4
This is not a single-digit number.
if b = 3
10*a + 3 - 3*3*a = 0
a = -3
a should be positive.
if b = 4 we have:
10a + 4 - 12a = 0
-2a = -4
a = -4/-2 = 2
So this gives the number 24.
if b = 5 we have
10a + 5 - 15a = 0
-5a = -5
a = -5/-5 = 1
So this gives the number 15
if b = 6
10a + 6 - 18a = 0
-8a = -6
a = -6/-8
This is not a single-digit.
if b = 7
10a + 7 -21a = 0
-11a = -7
a = -7/-11
At this point we can see that for larger values of a, we will not get more tripply numbers.
So the only "triply" numbers are: 15 and 24 (and their opposites, -15 and -24).
If you want to learn more about evaluating equations, you can read:
https://brainly.com/question/4344214
Find the measure of the angle indicated... please help
Answer:
Step-by-step explanation:
41). Measure of an external angle of a triangle is equal to the sum of teh opposite two angles.
140° = (13x + 9)° + (5x + 5)°
140 = 18x + 14
18x = 140 - 14
18x = 126
x = 7
m∠R = (13x + 9)
= 13×7 + 9
= 100°
42). m∠DCA = m∠E + m∠D
126° = (6x + 2)° + (5x + 3)°
126 = 11x + 5
11x = 126 - 5
11x = 121
x = 11
m∠D = (5x + 3)
= 5(11) + 3
= 58°
43). m∠DPQ = m∠Q + m∠R
11x + 3 = 70° + (x + 13)°
11x + 3 = x + 83
11x - x = 83 - 3
10x = 80
x = 8
m∠R = (x + 13)
= 21°
44). m∠QST = m∠T + m∠U
13 + 13x = 100 + (3x + 3)
13 + 13x = 3x + 103
13x - 3x = 103 - 13
10x = 90
x = 9
m∠U = 3x + 3
= 3(9) + 3
= 27 + 3
= 30°
In the diagram, QR=ST=480, CU=5x, and CV=9x-56. Find the radius of circle C
Answer:
your answer will be option C. 250
Step-by-step explanation:
hope it helps you
have a great day
Out of 10 students, 6 have a dog. Based on these results, how many students would have a dog out of 90 students?
Answer:
54 students would have a dog.
Step-by-step explanation:
If 6 out of 10 students have a dog, then multiplying 10 by 9 and 6 by 9 you will get 90 students having a dog.
By solving the inequality 4.5a < 18, the answer will be
A. a<10
B. a<8
C. a<11
D. a<4
Answer: D plz mark me brainliest (tap the crown on the bottom right of an answer)
Step-by-step explanation: it has to be D because it can't be larger then 4
The inequality by solving the given equation of 4.5a < 18 will be a<4 . Then the correct option will be (D).
What is inequality?A difference between two values indicates whether one is smaller, larger, or otherwise not identical to the other.
Equations are not always balanced on both sides by using equal symbols in mathematics. Sometimes it can be about something like a not equal relationship, meaning that something is preferable to or lower than the next.
In another word, inequality is mean that if a number is not equal to the other number then it will be unequal and the constraint of this will make an inequality.
Given that
⇒ 4.5a < 18
⇒ a < 18/4.5
⇒ a<4 hence, the correct option is a <4.
For more information about the inequality
https://brainly.com/question/20383699
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Claire's backyard is in the shape of a rectangle and has a length of 19.5 feet. It cost her $945 to fence in the yard. If fencing costs $15 per foot, what is the width of Claire's backyard?
Answer:
Step-by-step explanation:
You need to know the formula for the perimeter of a rectangle. We won't use it right away, but it is pertinent information.
P = 2 ( l + w )
Now, we know that the fencing costs $15.00 per foot, and that the length is 19.50 feet.
We first need to find the price of one "length" side of the fence.
To do this, multiply 19.50 by 15.00
19.50 x 15.00 = 292.5
Next, we look at the perimeter equation to see what we can plug in where.
P = 2 ( l + w )
We can put in the total price of the fencing for the yard as P, and the amount of one length side of the fence as l.
945.00 = 2 ( 292.5 + w )
And now, we simply solve for w.
945.00 ÷ 2 = ( 2 ( 292.5 + w ) ) ÷ 2
472.5 = 292.5 + w
472.5 - 292.5 = 292.5 + w - 292.5
w = 180
It costs $180 for one "width" side of the fence.
To find out how many feet that is, we do the opposite of what we did with the length. Instead of multiplying by $15.00, we divide by $15.00
$180.00 ÷ $15.00 = 12
The width of Claire's backyard is 12 feet.
(I need help ) the graph shows the relationship between the
number of cubic yards of soil ordered and the
total cost of the soil delivered.
Answer:
80/320
Step-by-step explanation:
answer is given
Find the sum of (3x^7 - 4x^5 + 3) and (2x^6 - x^5-3).
Answer:
3x^7+2x^6-5x^5
Step-by-step explanation:
(3x^7-4x^5+3)+(2x^6-x^5-3)
3x^7-4x^5+3+2x^6-x^5-3
3x^7+2x^6-4x^5-x^5+3-3
3x^7+2x^6-5x^5
I need help with this question!!
Can someone give me the correct answer
I will mark you brainliest
This is a test!!!!!!!please help
Answer:
Angle C and Y are vertical.
PLEASE HELP ME!!
5% of the tickets were reserved seats that sold for $35 each. What was the total amount in sales for the $35 tickets?
peter combines 160 grams of half-and-half containing 20% fat and 50 grams of milk. He makes a creamer that is 20% fat.
Suppose the milk contains x% fat. how many grams of fat are in the 50 grams of milk?
Answer:Much like heavy cream, half-and-half is a dairy product. It's made by combining equal parts cream and whole milk, resulting in a product that's thinner and lower in fat than heavy cream.
Miss Lim bought some puzzles for her pupils in the Maths Club. She bought a total
of 40 Tangram puzzles and IQ puzzles. She paid a total of $128. Each Tangram
puzzle cost $4 and each IQ puzzle cost $2. How many Tangram puzzles did she buy?
Answer:
She bought 24 Tangram puzzles
Step-by-step explanation:
Let the number of Tangram puzzles be t and the number of IQ puzzles be i
The sum of all the puzzles is 40;
i + t = 40 ••••••(i)
Cost of all Tangram puzzles at a cost of $4 per one will be;
4 * t = $4t
cost of all Iq puzzles at a cost of $2 per one is
2 * i = $2i
Sum
paid for all is $128
so;
4t + 2i = 128 •••••••(ii)
From equation i;
i = 40-t
Substitute into ii
4t + 2(40-t) = 128
4t + 80 - 2t = 128
2t = 128-80
2t = 48
t = 48/2
t = 24
pls hurry!! im being timed
Answer: $539
Step-by-step explanation:
Solve the equation to determine that the highest y value you can get is 539 with an x value of 18
14 + w is the same as which expression?
A
14w
B
14-W
С
W + 14
D
W - 14
Answer:
I think it's w + 14? :3
AND I THOUGHT I SAW A KUNIMI PFP-
Step-by-step explanation:
:3
What are the missing terms in the equation (__+7)+(2x-6)=-4x+1
The missing terms in the equation (__ + 7) + (2x - 6) = - 4x + 1 is - 6x.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, An equation (__ + 7) + (2x - 6) = - 4x + 1.
Simplifying the LHS we have,
__ + 7 + 2x - 6.
__ 2x + 1.
Now, The difference between 2x and - 4x is - 6x.
Therefore, The complete equation where LHS = RHS would be,
(- 6x + 7) + (2x - 6) = - 4x = 1.
learn more about numerical expressions here :
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Ughhhhh Its Mondayyyyyyyy soooooo free point question whats 3x+-7=93
Answer:
3X-7=93,=3x=86=x=28.67
Step-by-step explanation:
Answer:
100000000000
Step-by-step explanation:
PLEASE IM TIMED
After simplifying, what will x be equivalent to?
a5*a6=ax
Answer:
x= a10
Step-by-step explanation: