Step-by-step explanation:
(8+(-2)-4)
=8-2-4
=2
(3-5)
=-2
3. The sum of two numbers is 30 and their difference is 12. Find the two numbers.
Answer:
I don't know is it 12 and 16 I'm not sure
Answer:
The two numbers are 21 and 9
Step-by-step explanation:
Let the two numbers be a and b
The sum of these numbers is 30
a+b=30
The difference between these numbers is 12
a−b=12
―――――――――
I. You can solve this by logic.
If the two numbers were exactly equal, then they would both be 15.
15+15=30
But the difference would be 0, not 12
So if you lowered b by one point, and added that to a, then the two numbers would be 16 and 14, and the difference would be 2.
So you can see that for every point you subtract from b to add to a, you increase the distance between them by 2
So, by logic, you need to subtract 6 points from b and add them to a to create a difference of 12
(15+6) minus (15−6) gives a difference of 12
.m21.....−mm∩9 = 12
Answer:
The two numbers are 21 and 9
―――――――――
II. You can solve this by math
These are simultaneous equations, so you can solve them by math.
.a+b=30
.a−b=12
――――――
2a +0=42
.a =21 ← same answer
Which equation Is false?
Answer: #3
Step-by-step explanation:
The Jackson family went to soups and wiches and bought four sand which sand three bowls of soup for $27. The frank family went to soups and wiches and bought one bowl of soup and five sandwiches for $25.50. Let w represent the cost of the sandwich CNN es and a represent the cost of a bowl of soup. Identify which system of equations represents the situation.
Answer:
4w + 3c = $27
5w + c = $25.50
Step-by-step explanation:
Let us assume the w represent the cost of the sandwich
And, the c represent the cost of the bowl in a soup
Now the equations are
4w + 3c = $27
5w + c = $25.50
These two should be the equations that represent the situation
write 8z + z - 5 - 9z +2 in simplest form
Mar 01, 2:2
Nolan is going to invest $96,000 and leave it in an account for 6 years. Assuming the
interest is compounded monthly, what interest rate, to the nearest hundredth of a
percent, would be required in order for Nolan to end
up
with $142,000?
Answer:
put it this way 10% Is 9600 and 1% is 960
Step-by-step explanation:
so if it stacks monthly you can find your answer
also if you lookup compound interest calculator it will help you will future problems
Answer: its 6.54
Step-by-step explanation: its right on delta math
is this graph a function
Answer: yes because it if u plug in x values u get y values
José is making frult-filled tart shells for a party. He has 80 raspberries and 48 blueberrles. The tarts will each
have the same number of berrles. Raspberrles and blueberrles will not be in the same tart If he puts the
greatest possible number of fruits in each tart, how many tarts can he make?
When the greatest possible number of berrles Is In each tart, there are
tarts In total.
Answer:8
Step-by-step explanation:the GCF for 80 and 48 is 16 so divide 80 by 16 and you will get 5 and 48 by 16 and you’ll get 3 and when you and 5 and 3 you’ll get 8 as your answer.
I used a tutor for this and the answer I was given is 17.5. Which is incorrect. I am trying to understand how to solve.
Answer:
A right angle is 90 degree
Step-by-step explanation:
73 -90 degrees is 17 degrees. A right angle, shown is at 90 degrees
solve for a, 1/3 + a = 5/4
Answer:
[tex]a = \frac{11}{12}[/tex]
Step-by-step explanation:
[tex]a = \frac{5}{4} - \frac{1}{3}[/tex]
[tex]a = \frac{11}{12}[/tex]
Answer:
[tex] \frac{1}{3} + a = \frac{5}{4} [/tex]
[tex]a = \frac{5}{4} - \frac{1}{3} [/tex]
[tex]a = \frac{15 - 4}{12} [/tex]
[tex]a = \frac{11}{12} [/tex]
hi can you please help me with my work
Answer:
The penicl is about 6.5 inches long.
Step-by-step explanation:
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z.
Answer:
Width 2in
height 3in
length 4in
Step-by-step explanation:
If he want the length to be four he has to take 2 sqares off at the end to be left with his height as 3 so vertical from top to bottom and width (the two sqaures at the end of the photo to the left) would be 2. :)
Width of box=2in
Height of box=3in
Length of box=6in
Volume=2(3)(6)=36in³Now
length of the box is 4in
Product of width and height=36/4=9in²
They must be of 3×3 in or 4.5×2 in
7/8 x 1/3
please help me :)
Answer: 7/24
Step-by-step explanation:
Answer:
7/24 or about 0.29
Step-by-step explanation:
when multiplying fractions you first have to remember that:
a/b * c/d = a*c / b*d
If you remember that then its not hard to calculate:
7/8 * 1/3 = 7*1 / 8*3 = 7/24
Hope i could help :D
Dont be afraid to ask questions :)
is the product of 3/6×5/4 equal to the product of 3/4×5×6? explain how you know
Answer:
yes
Step-by-step explanation:
I think you mean
"Is the product of 3/6 × 5/4 equal to the product of 3/4 × 5/6?"
If we can turn 3/6 * 5/4 into 3/4 * 5/6 using only legal math steps, then the answer is yes.
3/6 * 5/4 =
Breakup each fraction into a product of fractions.
= 3/1 * 1/6 * 5/1 * 1/4
Use the associative and commutative properties of multiplication to change the order and grouping of the multiplication.
= (3/1 * 1/4) * (5/1 * 1/6)
Do each product in parentheses.
= 3/4 * 5/6
This shows that 3/6 * 5/4 = 3/4 * 5/6
Answer: yes
To help plan the number of meals to be prepared in a college cafeteria, a survey was conducted, and the following data were obtained.
132 students ate breakfast.
183 students ate lunch.
273 students ate dinner.
69 students ate breakfast and lunch.
113 students ate breakfast and dinner.
95 students ate lunch and dinner.
55 students ate all three meals.
How many students ate
(a) At least one meal in the cafeteria?
students
(b) Exactly one meal in the cafeteria?
students
(c) Only dinner in the cafeteria?
students
(d) Exactly two meals in the cafeteria?
students
Answer:
920 Students
Step-by-step explanation:
Add all of the meals together
Please dont judge me if i get this wrong this is why i joined brainly i don´t know nothing
Use the graph f(x)=x^3 to graph h(x)=1/2(x-3)^2-2
The data set below shows the number of points scored by a basketball team for each of nine games. If the mean of the data is 83 and the standard deviation is 6.5, identify all the scores that are within one standard deviation of the mean. {71, 77, 79, 80, 83, 87, 88, 90, 92}
Answer:
The scores within one standard deviation of the mean are: 77, 79, 80, 83, 87, 88
Step-by-step explanation:
The mean of the data is 83 and the standard deviation is 6.5, find scores within 1 standard deviation of the mean:
Between
83 - 6.5 = 76.5
83 + 6.5 = 89.5
So:
The scores within one standard deviation of the mean are: 77, 79, 80, 83, 87, 88
sam ran 63,756 feet in 70 minutes what is sams rate in miles per hour
Answer:
His rate would be 910.8 miles per hour
Step-by-step explanation:
This is division so divide 63756 by 70 and there’s your answer
Answer:
10.35 miles per hour
Step-by-step explanation:
63,756/5280 = 12.075 miles
12.075/70 = 0.1725 miles per minute
0.1725 x 60 = 10.35 miles per hour
do kramagat dhanatmak purnanko ka yog 145 hai purnank gyat kijiye
Answer:
hssssskwkwkkkayak toa
ehekkekekekek
eemeeememe
Step-by-step explanation:eeekekekee dd ejndkekd3kd3kd3kd3kdb3
wkwdwugudhwkwkwkekekwkwka,akkKKkKSNBEVEVVRTTVKALALALAL
Answer:
72, 73
Step-by-step explanation:
माना दो क्रमागत धनात्मक पूर्णाक x और (x + 1) हैं |
इसलिए...
प्रश्नानुसार,
x + (x + 1) = 145
2x + 1 = 145
2x = 145 - 1
2x = 144
x = 144/2
x = 72
x + 1 = 72 + 1 = 73
-3 - 8 (-5x - 1) distributive property
Answer:
5 +40x
Step-by-step explanation:
Distributive property:a*(b +c) =(a*b) + (a*c)
-3 - 8( -5x - 1) = -3 + (-5x)*(-8) + (-1) * (-8)
= -3 + 40x + 8
= -3 + 8 + 40x {combine like terms}
= 5 + 40x
Which pair of numbers is opposite?
Select all that apply.
|-6| and -6
|-6| and 6
6 and 1/6
6 and -6
0 and 6
Answer:
Step-by-step explanation:
A,b,d,e
Find the 3rd quartile of the date set:
72, 74, 76, 78, 82, 84, 87, 90, 91, 93, 99, 99, 100
Answer:
Answer:
101 102 108 156 1784 1267
The third quartile of the data set is 96.
Hope this helped! :)
A robot's height is 120 centimeters. How tall is the robot in millimeters? Record your answer and fill in the bubbles on your answer document, Be sure to use the correct place value.
I added a picture of the problem
Answer:
x≥88
88
88≤x≤100
Step-by-step explanation:
83x3=249
249-73-88=88
x≥88
88
88≤x≤100
Which image below shows the result of an image that has been rotated 180 by the origin O?
d.
a.
b.
12
8
Which triangles are similar?
8
3
25
(25
25
25
6
6
16
Ос
od
Оа
O
b
Answer:
C and d
Step-by-step explanation:
C and d are similar triangles. I think that’s what you mean. I just did the test
Plz Help me
3x + 5y = 13
2x + y = 4
Answer:
solve simultaneously
start by labeling them equation 1 and 2 then choose whether you want to make x or y the subject from knew of the equations
In the past year, Raina watched 6 movies that she thought were very good. She watched 15 movies over the whole year. Of the movies she watched, what percentage did she think were very good?
Answer:6/15 so 40%
Step-by-step explanation:
plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help plz help find the value of x
Answer:
5x = 120, so
x = 24
Answer:
x = 24
Step-by-step explanation:
5x = 120
x = 24
[Please give me a brainliest]
Show work pls! :D
Given the following 30-60-90 triangle, find the value of x and y. Round to the nearest tenth.
find ratio of 120 :80
120 : 80
= 12 : 8
= 6 : 4
= 3 : 2
This is the answer
Answer:
120/10=12
80/10=8
12/4=3
8/4=2
Nothing can further decide, then we have
3:2