2 years ago

Explain how you used mental math

Mathematics

2 answers:

andriy [413]2 years ago

4 0

Addition, I would use the principles of addition.

DIA [1.3K]2 years ago

4 0

Addition is the correct answer

You might be interested in

Express the ratio below in its simplest form. 3 : 3 1 /2

slavikrds [6]

Answer:

1/3÷1/2

1/3×2 (reciprocal on dividing)

=2/3

<h2>plzz give brainiest</h2>

6 0

2 years ago

Read 2 more answers

A water sprinkler sends water out in a circular pattern. How large is the watered area if the radius of the watering pattern is2

Mamont248 [21]

Answer:

Step-by-step explanation:

Simply put, it is similar to finding the area of a circle.

Therefore, a=pi*r^2

a=pi*23^2

a=529pi

a=1661.9 ft^2

6 0

1 year ago

The admissions office of a private university released the following admission data for the preceding academic year: From a pool

lina2011 [118]

Answer: Our required probability is 0.1695.

Step-by-step explanation:

Since we have given that

Number of male applicants = 4200

Number of female applicants = 3800

So, total number of applicants = 4200+3800 = 8000

Probability of male entered and subsequently enrolled is given by

$0.4\times 0.4=0.16$

Probability of female entered and subsequently enrolled is given by

$0.4\times 0.45\\\\=0.18$

Number of male entered and subsequently enrolled is given by

$0.16\times 4200\\\\=672$

Number of female entered and subsequently enrolled is given by

$0.18\times 3800\\\\=684$

So, Probability that a student who applied for admission will be accepted by the university and subsequently will enroll is given by

$\dfrac{672+684}{8000}\\\\=\dfrac{1356}{8000}\\\\=0.1695$

Hence, our required probability is 0.1695.

3 0

2 years ago

Gail ran 4610 miles on Saturday and 6810 miles on Sunday. How many miles did Gail run over the weekend?

VMariaS [17]

Answer:

He ran 11,420 miles on the weekend.

Step-by-step explanation:

It's simple: add 4610 and 6810 to get 11,420

hope this helped!

8 0

2 years ago

Sarah has one-third the number of cookies as Steve. Steve has 8 more cookies than Sarah. How many cookies do Sarah and Steve hav

Anastasy [175]

Answer:

3 i think hope this helps

4 0

2 years ago

Read 2 more answers