MATHEMATICS MIDDLE SCHOOL

Explain how to find 40 times 80 using mental math

Answers

Answer 1

Answer:

Using mental math's, the product of 40 times 80 is: 120

How to find the product of numbers?

We want to find the number product given as:

40 times 80

Now, this can be expressed as:

40 * 80

This means a product or multiplication of 40 and 80.

We can break the numbers down as:

40 = 4 * 10

80 = 8 * 10

Thus, we have:

(4 * 10) + (8 * 10)

= 10(4 + 8)

= 10 * 12

= 120

Read more about Number products at: brainly.com/question/10873737

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Answer 2

Answer: First you can use simple multiplication. Take out the zeroes from 40 and 80. You get 4 and 8. 4 multipled by 8 is 32. so that means that 80 times 40 is 320

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Nine less than four times a number equals fifteen

Answers

nine less means minus 9
four times a number equals 4x
and equals fifteen is this = 15
lets put all our knowledge together to make an equation:)
4x - 9 = 15

merry christmas:)

9-4x3=15 it is 3 and 3️⃣

Cards with the numbers 1 through 40 are placed in a box and thoroughly shuffled. What is the probability of randomly selecting a card with a number less than 10 or a multiple of 15?

A.

B.

C.

D.

Answers

9/40 + 2/40 = 11/40

hope this helps

The measure,in degrees,of the three angles of a triangle are given by 2x + 1,3x - 3, and 9x.Whar is the measure of the smallest angle

Answers

(2x+1)+(3x-3)+9x = 180

14x-2 = 180

14x = 182

x = 13

Plugging back in, your angles are 27 degrees, 36 degrees, and 117 degrees, respectively. So the 2x+1 angle is the smallest.

Draw lines to show much each person gets. write the answer.
4 friends share 3 Orange equally

Answers

Cut it in fourths which gives you twelve and each person gets three each

There are 5,280 feet in a mile. What is the total number of feet in 6 miles?

Answers

u first multiply 5,280 by 6 and get 31,680

31,680 is your answer

Hope this helps

1mi=5,280 ft
6mi=??
5,280x6
31,680
There are 31,680ft in 6mi

If a cone-shaped vase can hold 45 cubic centimeters of water and has a radius of 2 centimeters, what is the height of the vase? Use 3.14 for pi. Round your answer to the nearest hundredth.