Question

Kyra observed that 85% of the students at a library liked reading mystery stories. If 30 students at the library did not like reading mystery stories, the number of students at the library who liked mystery stories was _____. (only put numeric values, no other symbols)

Answer 1

160 students

Answer 2

how did u get that

Answer 3

30=15%
85/15=5 1/3
So 5 1/3 30s are in 85%
5*30+(1/3*30)
And the answer is 160

Answer 4

thank you

Answer 5

You're welcome!

Answer 6

i have another question if you are willing to help me

Answer 7

Sure!

Answer 8

The sum of two consecutive even integers is 234. What is the larger integer?

114

116

118

124

Answer 9

i think its 118 but im not sure

Answer 10

118

Answer 11

is that right

Answer 12

yes

Answer 13

116+118=234

Answer 14

oh thank you can you help with a few more im really confused

Answer 15

Sure haha

Answer 16

thanks....A company did a quality check on all the packs of roasted almonds it manufactured. Each pack of roasted almonds is targeted to weigh 21.25 oz. A pack must weigh within 0.24 oz of the target weight to be accepted. What is the range of rejected masses, x, for the manufactured roasted almonds?

x < 21.01 or x > 21.49 because |x - 0.24| + 21.25 > 0

x < 21.25 or x > 21.49 because |x - 21.25| > 0.24

x < 21.01 or x > 21.49 because |x - 21.25| > 0.24

x < 21.25 or x > 21.49 because |x - 0.24| + 21.25 > 0

Answer 17

i think its c but i cant figure out how to do the math right

Answer 18

I agree. It's c.

Answer 19

ok how would you do the math

Answer 20

All I did was plug in a value for x and see if the outcome was correct.

Answer 21

ok can you show me

Answer 22

Ok so:
let's say x=30
|30-21.25|>0.24
|8.75|>0.24
The distance 8.75 is from 0 on the number line is 8.75
8.75>0.24
and that is correct

same if you use x as a number that is less than 21.25
x=19
|19-21.25|>0.24
|-2.25|>0.24
2.25>0.24

Answer 23

ok i have another one that me and mymom cant figure out we think its the thrid one but not sure
Hugh has to earn at least $400 to meet his fundraising goal. He has only 100 books that he plans to sell at $8 each. Which inequality shows the number of books, x, Hugh can sell to meet his goal?

20 ≤ x ≤ 400

40 ≤ x ≤ 100

50 ≤ x ≤ 400

50 ≤ x ≤ 100

Answer 24

The answer is the fourth one.

Answer 25

He only has 100 books to sell, and he must sell fifty to make $400

Answer 26

thank you

Answer 27

Anytime!