In a football game, a running back ran for 5 and 7 yards on his last two runs. His total yardage for the whole game is 78 yards. Which expression shows how many yards the running back had before those two runs?\
PLEASE HELP I REALLY NEED THE ANSWER
The answer is A. Because the total amount of yards AFTER he ran 5 and 7 yards is 78, but they ask what expression show how many yards the running back had BEFORE the two runs so the answer is A. Because you have to subtract 5 and 7 from the end score to figure out what he had BEFORE the last two runs.
B is not correct.
78 – 5 + 7 = 80
Forgot, the choices are:
A. 78 – 5 – 7
B. 78 – 5 + 7
C. 78 + 5 – 7
D. 78 + 5 + 7
11\left[\frac{\left(9^{2}-5\right)}{2^{2}+8}\right]
i agree with ms sue
To find out how many yards the running back had before those two runs, we can use algebraic expressions. Let's assume that the running back had "x" yards before those two runs.
We know that on his last two runs, he ran for 5 and 7 yards, so the total yardage for those two runs can be expressed as 5 + 7 = 12 yards.
Since the running back's total yardage for the whole game is 78 yards, we can form the equation:
x + 12 = 78
To isolate "x," we can subtract 12 from both sides of the equation:
x = 78 - 12
Simplifying further, we get:
x = 66
Therefore, the expression that shows how many yards the running back had before those two runs is "66 yards."