3 years ago

3) What is the measurement of each side if the perimeter is 78? (3x - 4) cm (2x + 3) cm

1 answer:

3 0

There are 4 sides so add 4 sides
3x-4+3x-4+2x+3+2x+3=78

Combine like terms
10x-2=78

Add 2 to each side of the equation
10x=80

Divide by 10
X=8

Enter x into equation
3(8)-4=20
2(8)+3=19

Multiply by 2
20 x 2= 40
19 x 2 = 38
40 +38 =78

Side 1- 20
Side 2- 19
Side 3- 20
Side 4- 19

You might be interested in

the distance between two cities on a map is 4 inches. if the map scale is 1 inch : 10 miles how far apart are the actual cities?

Bas_tet [7]

The cities are 40 miles apart

8 0

3 years ago

Read 2 more answers

a bag contains 10 yellow marbles 14 Blue Marble 7 red marbles and 9 green marbles. jack reaches in and grabs a marble, then with

kenny6666 [7]

Answer:

here the answer is 9/29...

4 0

2 years ago

Please help me haha..

tamaranim1 [39]

Answer:

2 = 64

1 = 90

3 = 10

Step-by-step explanation:

This is one possible example, remember that sides 2 and 3 must be less the 90 degrees if not it is not applicable

3 0

2 years ago

What is the equation of a vertical line passing through (-5,-2)

fiasKO [112]

X=-5 a vertical line only has an X intercept

5 0

3 years ago

There are 16 girls and 20 boys in the school band. Express an equivalent ratio of boys to total number of students in the school

Alex17521 [72]

Answer:

4:5

Step-by-step explanation:

half of 16 is 8, and half of 8 is 4

and half of 20 is 10, and half of 10 is 5

hope i helped man

8 0

3 years ago