Explain 2 ways to evaluate 15(90-3)

Mathematics

2 answers:

Elena L [17]3 years ago

8 0

Distribute the 15 first or subtract inside the parentheses first and then multiply

pychu [463]3 years ago

5 0

First Way:

15(90-3)

=15(10*9-3)

=15*10*9-15*3

=150*9-45

=1,350-45

=1,305

-----------------

Second Way:

15(90-3)

=15(87)

=15(80+7)

=15(10*8+7)

=15*10*8+15*7

=150*8+(10+5)*7

=1,200+70+35

=1,200+105

=1,305

You might be interested in

Graph the systems of equations to find the solution.

frutty [35]

The solution is (8,-9).

7 0

3 years ago

A suit that sells for $300 in on sale of $240. Find the discount rate.

Gemiola [76]

Answer:

20% discount

Step-by-step explanation:

300 - 240 = 60

60 / 300 = 0.20

0.20 × 100 = 20

3 0

2 years ago

Find the volume of a cylinder that has a diameter of 6 and a height of 9. Leave your answer in terms of (pie)

laiz [17]

V = π x r² x h

V= π x 6² x9

V= 324 π

5 0

3 years ago

Read 2 more answers

How do you write mixed numbers or fractions as decimals?

aksik [14]

To write fractions as decimals divide the numerator by the denominator, for example 3/4 3 divided by 4 equals 0.75 so 3/4 as a decimal is 0.75. If you want to do that with a mixed number, 3 3/4 3 divided by 4 equals 0.75 then add the 3 so 3 3/4 is equal to 3.75.

7 0

3 years ago

The sum of four consecutive integers is at least 18. What's the smallest consecutive integer to make this statement true?

Ghella [55]

Let the four consecutive integers be

x , x+1, x+2, x+3

ATQ, Their sum is 18

$\sf \: x + x + 1 + x + 2 + x + 3 = 18$