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3 years ago

I was confuse on number 5, 6, 7, 8.

Mathematics

2 answers:

KiRa [710]3 years ago

5 0

Answer:

5. 3/5-2/5=1/5; answer is 1/5

6.7/10-3/10=4/10; answer is 2/5(simplify)

7.5/6-4/6=1/6; answer is 1/6

8.3/4-2/4=1/4; answer is 1/4

Step-by-step explanation:

Explanation is above, when subtracting fractions remember that the denominator must be the same and you can subtract the numerator.

Hope this helps!

pshichka [43]3 years ago

3 0

Answer:

5. 2/5 - 1/5 =1/5

6. 4/10 - 3/10 =1/10

7. 1/6 - 4/6 = -3/6

8. 1/4 - 2/4 = -1/4

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

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3 years ago

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Step-by-step explanation:

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3 years ago

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there are 148 juniors and 272 seniors attending prom this year. if there must be three chaperones per 60 students, how many chap

valkas [14]

21 chaperones are needed for 420 students.

Step-by-step explanation:

No. of juniors = 148

No. of seniors = 272

Total = 148+272 = 420 students

3 chaperones = 60 students

1 chaperone = $\frac{60}{3}=20\ students$

Ratio of chaperon to students = 1:20

Let,

x be the number of chaperons for 420 students.

Ration of chaperones to students = x:420

Using proportion

Ratio of chaperones to students :: Ratio of chaperons to students

$1:20::x:420$

Product of mean = Product of extreme

$20*x=420*1\\20x=420\\$

Dividing both sides by 20

$\frac{20x}{20}=\frac{420}{20}\\x=21$

21 chaperones are needed for 420 students.

Keywords: ratio, proportion

Learn more about ratios at:

#LearnwithBrainly

3 0

3 years ago

Which could be the dimensions of a rectangular prism whose surface area is greater than 140 square feet? Select three options. 0

olya-2409 [2.1K]

Answer:

I think the answers are...

B. 6 feet by 5 feet by 4 feet

C. 7 feet by 6 feet by 4 feet

D. 8 feet by 3 feet by 7 feet

(I'm so sorry if it's wrong)

Hope this Helps!

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3 years ago

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