Answer:
300Step-by-step explanation:
let the total number of students be x
45% of x is 135
that is
=(45/100)*x=135
0.45x=135
x= 135/0.45
x= 300students
Therefore the total number of students is 300
Please Help!
What is the perimeter of a polygon with vertices at
(-3, 1), (5, 1), (-3, 4), (5, 4)?
If possible provide step-by-step information
Answer:
22
Step-by-step explanation:
Its a rectangle with side lengths 3 and 8 so 3+8+3+8=22
8(x - 2) - 4 = 28
What does x equal
Answer:
6
Step-by-step explanation:
first, we multiply the 8(x - 2)
8 times x = 8x
8 times - 2 = -16
8x - 16 - 4 = 28
-16 - 4 = -20
8x -20 = 28
add 20 to both sides
48
8x = 48
divide
6
Answer:
x=6
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.(Can you give me brainliest?)
The area model shows 3 and one-fourth. What is 3 times 3 and one-fourth?
Answer:
2.25
Step-by-step explanation:
Calculater
Answer:
2 2/5
Step-by-step explanation:
Which decimal is equivalent to 3/8
Answer:
f. 0.375
Step-by-step explanation:
Answer:
F. 0.375 :)
Step-by-step explanation:
What is the value of -42+(5-2)(-6)?
0-34
-2
10
34
Answer:
[tex]-34[/tex]
Step-by-step explanation:
[tex]-4^{2} +(5-2)(-6)=[/tex]
[tex]-16+(3)(-6)=[/tex]
[tex]-16+(-18)=[/tex]
[tex]=-34[/tex]
Hope this helps and pls do mark me brainliest if you can:)
Answer:
-34
Step-by-step explanation:
Follow PEMDAS by starting with what's in the parentheses. 5-2=3. Next, multiply 3 by -6 and you'll get -18. Then next in PEMDAS is E for Exponent. Square -4 and you'll get -16. Then you'll add those two together and get -34 as your answer.
what was jon's speed between 50 and 70 seconds
Answer: 60
Step-by-step explanation: Its just common sense :)
Which expression is equivalent to (x^2/3)^3/2?
SHOW YOUR WORK
Answer:
3(3x+2)
Step-by-step explanation:
5 - (x + 5) > -2(x + 4)
Answer:
x>-8
Step-by-step explanation:
Pls give Brainliest!
Yousef is cutting pieces of construction paper so he can make cards for his family. Each piece of paper is 1112 inches wide. If he cuts that width so he would have two equal-sized smaller pieces, how wide will each smaller piece be?
Answer:
556 inches
Step-by-step explanation:
Given that:
The width of the construction paper is 1112 inches wide ;
Cutting the width to obtain two equal sized smaller pieces ;
(Width size of the original construction paper ÷ Number of smaller pieces)
= (1112 inches ÷ 2)
= 556 inches.
Hence, the smaller pieces will be 556 inches wide.
Which statement is true about a unit cube
Answer:
it has a volume of one cubic unit
Step-by-step explanation:
volume of cube = b*w*h , but they're all 1
) Sushmila is buying mehndi supplies. She has a coupon for $5 off each package of henna
powder. She plans to buy 3 packages of henna powder and 2 squeeze bottles.
Answer:
3(p-5) + 2s
Step-by-step explanation:
This was correct when I guessed on it
Answer:
Step-by-step explanation:
3(p-5)+2s
It takes Mike 18 minutes to finish reading 4 pages of a book. How long does it take for him to finish reading 30 pages? In proportion
pls help 25 points
7x + 39 ≥ 53 AND 16x + 15 > 31
CHOOSE ONE ANSWER
x > 1
x ≥ 2
x ≤ 2
There are no solutions
All values of x are solutions
Gena and her friends each estimated the quotient of –137.56 divided by –6.12 using compatible numbers. Which shows the best estimate using compatible numbers? Negative 140 divided by negative 7 = 20 Negative 140 divided by 6 = 23.ModifyingAbove 3 with bar Negative 135 divided by negative 7 = 22.5 Negative 135 divided by negative 5 = 27
Answer:
Negative 140 divided by negative 7 = 20
Step-by-step explanation:
Gena and her friends each estimated the quotient of –137.56 divided by –6.12 using compatible numbers.
Using Compatible Numbers: we round up each negative number given to the nearest whole number.
Hence:
-137.56 = -140
-6.12 = -7
Hence:
-140/-7 = -20
Therefore, the best estimate using compatible numbers is Negative 140 divided by negative 7 = 20
jeannette served 2 whole pizza to her friends .each visitor was given 1/4 of the pizza.how many visitors shared the pizza
Answer:
[tex] \boxed{8 \: visitor }[/tex]
Step-by-step explanation:
[tex]let \: the \: number \: of \: vistors \: be : n\\ then \to \\ \frac{2}{n} = \frac{1}{4} \\ \boxed{ n = 8}. \\ therefore \: she \: served \: 2 \: pizza \: to \\ \boxed{8 \: visitor }\: (her \: friends).[/tex]
♨Rage♨
The question is an illustration of fraction division.
8 visitors shared the pizza
Given
[tex]Pizza = 2[/tex]
[tex]k = \frac 14[/tex] --- the amount each visitor was given
The number of visitors (n) is calculated using:
[tex]n =\frac{Pizza}{k}[/tex]
So, we have:
[tex]n =\frac{2}{1/4}[/tex]
[tex]n = 8[/tex]
Hence, there are 8 visitors
Read more about divisions at:
https://brainly.com/question/21416852
Write a³ X a⁴ as a power of 'a'
a⁴
a²
a⁷
1+2-3+0-1039+2-2/2/2/2/2/-21/3/6/7/8/4/2/34/6/6/1000000-10202*2020
answer noobs
Answer:
If im not wrong it should be -20609077.125000000002128
Step-by-step explanation:
if im wrong im sorry (-///////-)
what happens when you multiply each side of the inequality by a negitive number
Answer:
What happens when you multiply each side of the inequality by a negative number?
Much like when you divide by a negative number, the sign of the inequality must flip. When you multiply both sides by a negative value you make the side that is greater have a "bigger" negative number, which actually means it is now less than the other side!
Does the inequality sign change when multiplying by a negative?
Because we are multiplying by a negative number, the inequalities change direction.
What is the rule for negatives and inequalities?
If a < b and if c is a negative number, then a · c > b · c. Multiplying each side of an inequality by a negative number reverses the direction of the inequality symbol. Dividing each side of an inequality by a negative number reverses the direction of the inequality symbol.
Examples of inequality by a negative number
3x < 7+3
Multiply (or divide) both sides by a negative number. Swapping left and right-hand sides.
ran 2 kilometers in 15 minutes, and Jada ran 3 kilometers in 20 minutes. Both ran at a constant speed. In kilometers, how far did Jada run in 60 minutes ?
PLZZZZZ HELP ASAP
Answer:
They did not run at the same speed. Calculation of their speed shows that Jada was running at a higher speed.
Step-by-step explanation:
Let's first calculate the speed of each person using the units provided so that we do not complicate the question.
speed = distance covered/time taken
Andre's speed = 2 km/15 min = 0.133 km/min
Jada's speed = 3km/20 min = 0.15 km/min
Clearly we can see that Jada was running at a higher speed than Andre. The question says they were running at constant speed not equal speed. That just means each person maintained their speed, they did not get faster or slower.
Graph the Linear Function - Determine which Graph represents the given Function. 2x - 4y = 8 Graph 1 Graph 2 Graph 3 Graph 4
Answer:
Graph 4 is the correct answer to the question because after I solved graph 4 has my answer
Step-by-step explanation:
How can you solve one-step multiplication and division equations?
Answer:
Step-by-step explanation:
All of these equations only require a single operation before you get x alone. for example: x - 2 = 6 Compared with 2x = 6
For the first one, you have to add two and get x = 8. for the second one, Then you divide by 2 and get x = 3. they're both a single step, as the name "one-step" equations tells you, and you only have to divide, multiply, add, or subtract one value.
The Spanish club held a car wash to raise money why equals Y=5X represents the amount of money The Y club members made Washing cars identify the constant Proportionality
Given:
The amount of money y club members made for washing x cars is
[tex]y=5x[/tex]
To find:
The constant Proportionality.
Solution:
If y is directly proportional to x, then
[tex]y\propto x[/tex]
[tex]y=kx[/tex] ...(i)
where, k is constant of proportionality.
The amount of money y club members made is proportional to number of cars washing x.
We have,
[tex]y=5x[/tex] ...(ii)
On comparing (i) and (ii), we get
[tex]k=5[/tex]
Therefore, the constant proportionality is 5.
Subtract 5x2 + 2x - 11 from 3x2 + 8x - 7. Express the result as a trinomial.
1.
-2x2 + 10x – 18
2.
-2x2 + 10x + 18
3.
2x2 - 6x - 4
4.
-2x² + 6x +4
what is -3(2x-8) but simplified
Answer:
-6x 24Step-by-step explanation:
-3(2x-8)
-3 * 2x = -6x
-3*-8= 24
-6x 24
If f(x) = 33, then x=?
Answer:
33?????
Step-by-step explanation:
Write the phrase as an algebraic expression.
Nine less than a number n is written as
Math
Answer:
[tex]n-9[/tex]
Step-by-step explanation:
PLZZZ HELP I WILL AWARD BRAILIEST
What value of x makes this equation true?
2a−6=5a+15
An open top box is made from a rectangular piece of cardboard, whose length is twice the width, by cutting a 3 in square from each corner and folding up the remaining sides. The area of the bottom of the box is 140 inches squared. What is the width?
Answer:
Width = 13 inch
Step-by-step explanation:
Assume;
Width = x
Length = 2(width) = 2x
Cut 3 inch from each corner:
Width = x-3-3 = x - 6
Length = = 2x-3-3 = 2x - 6
Area of rectangle = lb
Area of rectangle = [length][width]
Area of rectangle = (2x - 6)(x - 6)
Area of rectangle = (2x - 6)(x - 6)
140 = 2x² - 12x - 6x + 36
2x² - 18x - 104
x² - 9x - 52
x² - (13-4)x - 52
x² - 13x + 4x -52
x(x-13)+4(x-13)
(x-13)(x+4)
So,
x = 13 or x = 4
Width = 13 inch
PLEASE HELP!!!!!!
Which of the following triangles below make a right triangle?
Answer:
b
Step-by-step explanation:
Use the provided ruler to measure the segment shown. Find the scale of the drawing. The length of the segment is ___ centimeters. The scale is ___ cm : ___ m.
Answer:
Length of boat = 12,000cm
Scale: 100cm : 1m
Step-by-step explanation:
Find the diagram attached
Given
Length of the boat = 120m
Using the conversion
100cm = 1m
Converting to 120m to centimeters
x cm = 120m
100cm = 1m
Cross multiply
x×1 = 120×100
x = 12,000cm
.
Hence the length of the measured segment is 12,000cm
The scale used will be according to the conversion rate used
The scale used will be 100cm : 1m
Answer:
The actual answer is:
Length if the segment is 4 centimeters.
the scale is 1 cm : 30 m
Step-by-step explanation:
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