3 years ago

The product of a number and -7 gives seven times the sum of that number and -40. Find the number

Mathematics

1 answer:

Ymorist [56]3 years ago

4 0

Let the unknown number be x.

x × -7 = 7 (x + -40)

-7x = 7x - 280

-14x = -280

x = 280/14

x = 20

Hope this helps!

You might be interested in

The ratio of the width to the length of a rectangle is 3:7. The shorter side is 9 inches long. What is the longer side and also

photoshop1234 [79]

shorter side : longer side = 3 : 7

Equate 3 parts tp 9 inches:

3 parts = 9 inches

Find 1 part:

1 part = 9 ÷ 3 = 3 inches

Find 7 parts:

7 parts = 3 x 7 = 21 inches

Area = Length x Width = 21 x 9 = 189 in²

Answer: The longer side is 21in and the area is 189 in²

3 0

3 years ago

Read 2 more answers

A. dashed line, shade below

Ronch [10]

Answer:

the answer is A

Step-by-step explanation:

3 0

3 years ago

An angle measures 98° less than the measure of its supplementary angle. What is the measure of each angle?

Tema [17]

Answer: 41 and 139 degrees

Step-by-step explanation:

7 0

2 years ago

In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. If a child is selected at random,

n200080 [17]

Answer: 0.75

Step-by-step explanation:

A survey of 364 children aged 19-36 months found that 91 liked to eat potato chips.

Total children surveyed= 364

Those that like to eat potato chips= 91

Those that don't like to eat potato chips= 364 - 91 = 273

Probability that the child chosen doesn't like to eat potato chips will be children that don't like to eat potato chips divided by total number of children surveyed.

= 273/364

= 0.75

4 0

3 years ago

A shoe box in the shape of a rectangular prism has a length of 12 inches, a width of 6 1/2 inches, and a height of 4 1/2 inches.

katovenus [111]

12 x 6 1/2 x 4 1/2 = 351in^3

3 0

3 years ago