These are all ways to reduce the negative effect of burning fossil fuels EXCEPT: A. taking shorter hot showers

B. running the dishwasher partially empty instead of full to conserve water

C. riding your bike when possible

D. driving hybrid cars instead of regular cars​

B you still use the same amount of water in the dishwasher when you run it full of dishes as when you run it half full of dishes

Step-by-step explanation:

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: