-2x + 12 < - 4......subtract 12 from both sides
-2x + 12 - 12 < -4 - 12....simplify
-2x < -16...divide both sides by -2, changing the inequality sign
(-2/-2)x > -16/-2....simplify
x > 8

8 0

4 years ago

Billy left home at 9 a.m and rode his bicycle to the park at an average speed of 10 miles per hour . He arrived at the park at 9

zloy xaker [14]

Answer: 5 miles away.

Explanation:

He travels 10 miles per hour.

The park is 30 minutes away, according to the text.

30 minutes is half an hour.

m = miles h = hours

10m = h

10m / 2 = h / 2

5m = 30 seconds

7 0

3 years ago

There were 112 boys on the boy's basketball camp and 163 girls on the

galben [10]

Answer:

25 % of 112= 28 boys

Step-by-step explanation:

8 0

4 years ago

Find the length of the rectangle if the perimeter is 244 yards the length is 18 less than three times the width?

Mariana [72]

Answer:

The Length of rectangle is 87 yards.

Step-by-step explanation:

Let width = w

Length = 3w-18

Perimeter of rectangle = 244 yards

We need to find length of rectangle.

First we need to find value of w

The formula used will be: $Perimeter=2(length+width)$

Putting values and finding w

$Perimeter=2(length+width)\\244=2(3w-18+w)\\244=2(4w-18)\\244=8w-36\\244+36=8w\\8w=280\\w=\frac{280}{8}\\w=35$

So, w= 35

The width of rectangle w = 35 yards

The length of rectangle l = 3w-18 = 3(35)-18 = 105-18 = 87 yards.

So, the Length of rectangle is 87 yards.

3 0

3 years ago