The number 78 is decreased to 72. What is the percentage by which the number was decreased, to the nearest tenth of a percent?

7.7%

Step-by-step explanation:

First get the decrease .

Decrease = 78 - 72 = 6

Percentage decrease will be the decrease divided by the original number multiplied by 100%

That’s

6/78 x 100%

0.0769 x 100%

7.69

7.7% to the nearest tenth

y=2x-3

Step-by-step explanation:

y=mx+c

m=gradient=

5-(-5)/4-(-1)

=10/5

=2

c=y intercept=-3

y=2x-3