13. Which one of the following pairs of numbers contains like fractions?A. 1/2 and 3/2
B. 5/4 and 4/5
C. 6/7 and 60/70
D. 4/8 and 12/16

16. 4/15 of the 315 members of a book club are male. How many female members are there in the club?
A. 174
B. 84
C. 131
D. 231

Answers

Answer 1

Answer: 13. C. 6/7 and 60/70, think of percentages. 16. D. 231, because 4/15 times 315 = 84, 315-84 = 231.

Answer 2

Answer: 6/7 is the same as 60/70 or
6/7 and 6x10
-------
7x 10
10/10 is one so
6/7 = 6/7

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A deep sea diver descends below the surface of the water at a rate of 60 feet each minute. What is the depth of the diver after 10 minutes.

Answers

Answer:

600 feet

Step-by-step explanation:

60 feet per minute

m = minute

60m

60(10)

600 feet

How do you simplify radical expressions
81 1/4

Answers

$81^(1)/(4)=\sqrt[4]{81}=\sqrt[4]{3^4}=3\n\n-----------------------\n\n81^(1)/(4)=\left(3^4\right)^(1)/(4)=3^{4\cdot(1)/(4)}=3^1=3$

you mean convert 81^(1/4) into a radical expression?

The leg of a right triangle is 3 units and the hypotenuse is 4 units. What is the length, in units, of the other leg of the triangle?square root of 5
square root of 7

5

7

Answers

Answer:

square root of 7

Step-by-step explanation:

Each right angle triangle has 3 sides known as the opposite, adjacent and hypotenuse sides. The relationship between these 3 sides is as defined by pythagoras theorem which states that

a² + b² = c²

where a and b are the lengths of the opposite and adjacent sides (in no particular order) and c is the length of the hypotenuse side.

Given that the leg of a right triangle is 3 units and the hypotenuse is 4 units, it means that

a² + 3² = 4

where a is the length in units, of the other leg of the triangle

a² = 4² - 3

a² = 16 - 9

= 7

a = √7

A jar contains jelly beans that are red, yellow, blue, and purple. Several people reach in and grab handfuls of jelly beans, then collectively tally the number of each color: 15 red, 20 yellow, 12 blue, and 8 purple. If someone pulls out 22 jelly beans, about how many would you expect to be yellow?A.4
B.20
C.13
D.8