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2 years ago

If 7 - 2x > 15, what is the solution for X?

Mathematics

1 answer:

GREYUIT [131]2 years ago

6 0

Answer:

x<-4

Step-by-step explanation:

7 - 2x > 15

15+2x=7

x=-4

It has to be less than -4, so it can make the inequality true, you can plug in a number to the equations as well for example:

7-2(0)>15 Not True

7-2(-5)>15 True

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How many whole numbers leave a remainder of 2 when divided into 56, and a remainder of 1 when divided into 28? a.) 0 b.) 2 c.) 3

meriva

56 would have a remainder of 2 using multiples of 3

56/3 = 18 remainder 2

56/6 = 9 remainder 2

56/9 = 6 remainder 2

56/18 = 3 remainder 2

56/27 = 2 remainder 2

Now divide 28 by the above numbers to see which ones have 1 as a remainder:

28/3 = 9 remainder 1

28/6 = 4 remainder 4

28/9 = 3 remainder 1

28/18 = 1 remainder 10

28/27 = 1 remainder 1

There are 3 numbers that will work.

Answer: c. 3

4 0

2 years ago

In 2016, a town had a population of 80,000 people. The growth rate per year is 4%.

Alekssandra [29.7K]

Answer:

80,000 + 1.04 to the forth power

Step-by-step explanation:

First term is initial number

Second term is one plus the percent as a decimal (if it’s an increase)

Then to the power of 4 assuming that there are 4 year in between 2016 and this year, 2020

8 0

3 years ago

2. Find the surface area of a cylindrical can of tennis balls if the height of the can is 8

alina1380 [7]

Answer:

125.7 square inches

Step-by-step explanation:

The surface area of a cylinder is the sum of the areas of the two circles on each end and the area encircling "rectangle". Note that the length of this "rectangle" is the height of the can, while the width is the perimeter of the circle. The full equation is:

$A=2 \pi r^2 +2 \pi r h\\A=2 \pi r(r+h)\\A=2 \pi (2)(2+8)\\A=40 \pi\\A=125.7$

7 0

3 years ago

Read 2 more answers

The original cost of Sam’s investment is $10,000. After liquidating the investment, Sam calculated his real return to be $10,700

OverLord2011 [107]

Answer:

Return on investment (ROI) = 7%

Step-by-step explanation:

Given:

Amount invested = $10,000

Total amount get (refund) = $10,700

Find:

Return on investment (ROI) = ?

Computation:

Amount Return = Total amount get (refund) - Amount invested

Amount Return = $10,700 - $10,000

Amount Return = $700

$Return\ on\ investment \ (ROI) = [\frac{Amount\ Return}{Amount\ invested} ]100\\\\Return\ on\ investment \ (ROI) = [\frac{700}{10,000} ]100 \\\\ Return\ on\ investment \ (ROI) =7$

Return on investment (ROI) = 7%

3 0

2 years ago

Dy/dx=(x+1)^2 in problem solve the given differential equation by separation of variable

Brilliant_brown [7]

The derivative of (x+1)^2, for this you use the chain rule, to get 2x+2.

3 0

3 years ago