Find the number that completes the equation.
1 answer:
What you have to do is multiply 5 on each sides on the equation. Next, you cross out the 2 gives on the left side. Bring down the 6+y and 6 times 5 equals 30. So your equation would be 6+y=30. Then, you subtract 6 from both sides and cross out the 6’s on the left side... Bring down your “y” and 30-6=24. So y=24
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Answer:
sedan = 26 miles/gallon
truck = 17 miles/gallon
Step-by-step explanation:
try to write the text in mathematical format as a system of equations
t=truck s=sedan
first equation can be written as
t= (181-5s)/3
we can use it in the second equation and rewrite it as
7[(181-5s)/3]+6s = 275
7(181/3 -5/3s) + 6s = 275
1267/3 - 35/3s + 6s = 275
-35/3s + 18/3s = 275-1267/3
-35/3s + 18/3s = 825/3 - 1267/3
-35s + 18s = 825 -1267
-17s = -442 s = 442/17 = 26 sedan has an average of 26 miles/gallon
we use this value of s in the first equation
3t + 5*26=181 3t=181-130 t= 51/3 = 17 truck has an average of 17 miles/gallon