Ask question

Ask question

All categories

4 years ago

11

Cindy averaged 88 on the first four tests of the year in her Algebra 2 class. If she scores a 95 on each of the remaining tests,

her average will be a 93. Determine how many tests are left in the year.

1 answer:

Dvinal [7]4 years ago

3 0

Let x represent the number of remaining tests this year.

[4(88) + x(95)]/(4 + x) = 93
352 + 95x = 372 + 93x
2x = 20
x = 10

You might be interested in

PLEASE help me answer this!!!

tia_tia [17]

Check the picture below.

8 0

2 years ago

Question 23 on this pictured math sheet please. Have a great day!

Alex_Xolod [135]

Answer:

+2x+15

Step-by-step explanation:

-3x+5x=+2x

(+2x-7) × (+8)

(+2x)(+15)

I THINK

3 0

4 years ago

Determine if f(x)= x + 12/ x is even, odd, or neither

Reptile [31]

F(-x)=-x+(12/-x)=-x-12/x
odd function

3 0

3 years ago

katie has 60 flowers. she wants to divide into two groups so the ratio is 2:3 how many flowers in each group

olasank [31]

ratio 2:3 2+3 =5

60 /5 = 12

2*12 = 24

3* 12 = 36

24 to 36

7 0

3 years ago

suppose that a number written as a decimal has an infinite number of non- repeating digits after the decimal point. What is this

faltersainse [42]

Answer: Irrational number

If the decimal digits repeat forever, then the repeating decimal is considered rational.

For instance, 2/99 = 0.020202020202... where the "02" repeats forever

If we don't have such a pattern, then we cannot write the decimal as a fraction of two integers and the number is not rational. So it is irrational.

8 0

3 years ago