3 years ago

For each situation, decide whether you would need to find the circumference or area and explain why.

Mathematics

1 answer:

kenny6666 [7]3 years ago

7 0

Answer:

i need pionts bbut it is b

Step-by-step explanation:

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on Thursday, 30 students went to after-school tutoring. On Friday, 6 students went. What is the percent decrease in the number o

joja [24]

Hey there! :)

The answer is 80%

6 ÷ 30 = 0.2 = 20%

100 - 20 = 80

Hope this helped :)

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3 years ago

9. If f(x) = 5x-4 and f(2a) =156 , then what is the value of a?

solmaris [256]

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$f(x) = 5x - 4$

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$f(2a) = 5(2a) - 4$

$f(2a) = 10a - 4$

$156 = 10a - 4$

$10a - 4 = 156$

Add sides 4

$10a - 4 + 4 = 156 + 4$

$10a = 160$

Divide sides by 10

$\frac{10a}{10} = \frac{160}{10} \\$

$a = 16$

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3 years ago

Solve by elimination <br> 3x - 2y = 4<br> x+4y=34

Xelga [282]

Answer:

x= 6

y= 7

Step-by-step explanation:

multiply top by 2 then eliminate

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4 years ago

Can someone help me !

jeka94

B Is the answer ......... z

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3 years ago

Find the perimeter and area of the polygon shown below.

prohojiy [21]

Answer:

I would say it's d (sorry if im wrong)

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3 years ago