What is 2/5 of 20???

Answers

Answer 1

Answer: $(2)/(5)\ of\ 20\Rightarrow(2)/(5)*20=(2)/(5)*(20)/(1)=(40)/(5)=8$

Answer 2

Answer: 2/5 of 20 = 20/5 * 2 = 4 * 2 = 8

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Which value is equivalent to 15.2% written as a decimal

Answers

$p\%=(p)/(100)\n\n\n15.2\%=(15.2)/(100)=0.152$

Need help with 13,
I don’t get it :/

Answers

USE SUBSTITUTION FOR 3A+4S=57, 2A+8S=86 to find adult=$7 student=$9
CHECK STEP: 3(7)+4(9)=57
21+36=57 TRUE

There are 229 people attending a convention. Each table seats 8 people. What is the least number of tables needed to seat everyone?__________ tables

Answers

29 tables will be needed.

What is the area of the figure? A.
192 square centimeters

B.
108 square centimeters

C.
102 square centimeters

D.
42 square centimeters

Answers

You can divide this image into 2 different shapes and there are multiple ways to do this. I drew a line straight down from the side that has a length of 6 to divide the image into 2 rectangles

I now have a rectangle that has sides of 7 and 10 and a rectangle that has sides of 4 and 8

A=L*W so A=7*10 which is 70
A=L*W so A=4*8 which is 32

add these areas together to get 102 so "C" is the correct answer

-16+5n=-7(-6+8n)+3

what is the work for this ?? this is the like only one i cant get

Answers

-16 + 5n = -7(-6 + 8n) + 3 Given
-16 + 5n = 42 - 56n + 3 Distribute
-16 + 5n = 45 - 56n Collect like terms
61n = 61 Add 56n to the left side and add 16 to the right side
n = 1 Divide 61 from both sides

The answer is n = 1. Remember that when you have a number beside two or more numbers in parentheses, you have to distribute, or multiply the number outside the parentheses by each number inside the parentheses.

Hope this helps!

Multiple please please answer