Answer:
The statement about Rosa's calculations that is true is (0.914m)/(1yd).
Step-by-step explanation:
The ratio of meter (m) to yard (yd) is 0.914 : 1.
Therefore, the conversion factor is 0.914 m/1 yd
There are 4 quarts in a gallon so the amount used can be shown as 4 1/4, or 4.25 so to find out how much gas is left in the tank you simply subtract 4.25 from 20.
20-4.25
=15.75
There is 15.75, or 15 3/4, gallons of gasoline left in the tank.
We will represent everything in cents
nickles are worth 5 cents and dimes are 10 cents
n=number of nickles
d=number of dimes
60 total coins
n+d=60
total is 430 cents
5n+10d=430
divide both sides by 5
n+2d=86
we gots
n+d=60 and
n+2d=86
eliminate
multiply first equation by -1 and add to 2nd equation
-n-d=-60
<u>n+2d=86 +</u>
0n+1d=26
d=26
so
n+d=60
n+26=60
n=34
34 nickles and 26 dimes
Remember previous range was from -1 to 1
now multiply it by -5
range is from 5 to -5
answer is first otpion
