3 years ago

Which expression can be used to determine 50% of 42? 42-2 ,42÷2,42÷10,42-10

Mathematics

1 answer:

evablogger [386]3 years ago

3 0

Answer:

42÷2

Step-by-step explanation:

You might be interested in

Mr.Ward runs a lot. He ran 45 minutes each day, 5 days each week , for 16 weeks . In that time, he ran 450 miles. What was his a

Savatey [412]

Answer:

7.5 miles per hour.

Step-by-step explanation:

We have been given that Mr. Ward runs a lot. He ran 45 minutes each day, 5 days each week, for 16 weeks.

First of all, we will find time for that Mr. Ward ran in 16 weeks.

We will multiply 5 by 16 to find number of days for that Mr. Ward ran and then we will multiply the result by 45 minutes to find the time.

$\text{Time for that Mr. Ward ran in 16 weeks}=16\times 5\times 45\text{ minutes}$

$\text{Time for that Mr. Ward ran in 16 weeks}=3600\text{ minutes}$

Now, we will divide 3600 minutes by 60 minutes to convert time into hours as:

$\text{Hours}=\frac{3600}{60}=60$

Now, we will divide 450 miles by 60 hours to find Mr. Ward's average speed as:

$\text{Mr. Ward's average speed}=\frac{450\text{ miles}}{\text{60 hours}}$

$\text{Mr. Ward's average speed}=\frac{7.5\text{ miles}}{\text{ Hour}}$

Therefore, Mr. Ward's average speed in 7.5 miles per hour.

7 0

3 years ago

For Problems 11-12, expand the expressions using the Distributive Property. Then simplify the expressions. 12. 9(3y-5)

Aleonysh [2.5K]

Answer:

27y-45

Step-by-step explanation:

9(3y-5)=27y-45

6 0

3 years ago

The CEO of a company wants to determine if taking the employees to a company retreat would boost their morale. He decides to use

Ede4ka [16]

Answer:

he should use 3 since 250 is the largest possible outcome

Step-by-step explanation:

3 0

3 years ago

What is tge total surface area of a solid sphere of diameter 14cm

Alborosie

The surface area of a sphere of radius r is A = 4π*r^3.

Since the radius in this case is 7 cm (half the 14 cm diameter), the area of this sphere is

A = 4π(7 cm)^2, or 196π cm^2.

7 0

3 years ago

Find the distance between -6 and 8. What is an expression that represents the distance?

snow_lady [41]

The answer is -6+x=8. x is the unknown number. To find the distance, try to use a number line. And the answer to the expression is 14. To get from -6 to 0, you add 6. Then from 0 to 8, you add 8. 8+6=14

6 0

3 years ago

Which expression can be used to determine 50% of 42? 42-2 ,42÷2,42÷10,42-10​

Which expression can be used to determine 50% of 42? 42-2 ,42÷2,42÷10,42-10