MATHEMATICS HIGH SCHOOL

The ratio of girls to boys in Liza’s classroom is 5 to 4How many girls are in her classroom if there is a total of 27
students?

1. 12
2. 9
3. 54
4. 15

Answers

Answer 1
Answer: The answer is 15. There are more girls than boys. 27 divided by 2 is 13.5. As the ratio is 5:4 the number of girls must be higher than 13.5, which cancels out 12 and 9. 54 is too great so the answer is 15. 
Answer 2
Answer:

Answer:

2.9

Step-by-step explanation:

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Solve a/3 + 4 = 6
a=

Answers

Answer:

a = 6

Step-by-step explanation:

Given

(a)/(3) + 4 = 6 ( subtract 4 from both sides )

(a)/(3) = 2 ( multiply both sides by 3 to clear the fraction )

a = 6

Answer:

a=6

Step-by-step explanation:

a/3=6-4

a/3=2

a=6

Can u plz help me I don't understand​

Answers

Answer:

No

Yes

No

Yes

No

Yes

Step-by-step explanation:

u multiply 10% and 84= 8.4

anything close to 84- 8.4

If 9 men can do a job in 24 days, how many men are needed to do the same job in 18 days?a. 11
b. 12
c. 15
d. 18

Answers

Answer:

b  12

Step-by-step explanation:

1/(9*24)=1/(x*18)

9*24=18x

x=12

Answer:

b. 12 mens are needed to do that job

school x and school y play eachother in a competition school x has eight more points than school y school x has three times as many points as school y. how many points does each school have?

Answers

Answer:

3y+8=x

Step-by-step explanation:

School X School Y

y+8=x

3y=x

3y+8=x

10 kilometers is about
6 miles
B
6 feet
10 feet
60 feet

Answers

6 miles because 1km is .6214 miles, 10x.6214 ≈ 6
Your answer is 6miles !

Any number that is divisible by 2 is also divisible by 8.Find a counterexample to show that the conjecture is false.
24
32
28
16

Answers

28

28/8=3.5

...................
You don't have to go any further than 2 itself.

All of the even numbers that are not multiples of 8 are counterexamples.

28 is a good one.
Other Questions
Rachel deposits $100 in a bank account and she gets 8% simple interest on it. Which linear model gives the return on her investment in terms of time t in years?a. R = 8t – 100 b. R = 8t + 100 c. R = 2t + 100 d. R = 88t + 100 e. R = 3t + 108
There are 565 sheets of paper in a book how many sheets of paper are there in 2000 of these bookgive your answer in standard form
3. Mr Reder has just robbed a bank and is trying to escape on foot. He iscurrently 3 miles from the bank and running at 5 miles per hour.a. Write an equation to model how far from the bank Mr Reder isafter a certain amount of time has passed.b. How far has he gone after 3 hours?c. Draw an appropriate graph for this equation.
To get from the post office to the library, Sindy walked due north and then due east. The distance Sindy walked east is 20 meters more than the distance she walked north. If Sindy were able to walk directly from the post office to the library in a straight line, she would have walked 150 meters. Suppose x represents the distance Sindy walked north. Which equation can be used to find x?x^2 (x 20)^2=150^2202=x^2-150^2x (x 20)=150x^2 (x 150)^2=20^2