Well I'm not sure what the answer would be since I'm not that smart but I did get the answer of 90, I did this by dividing 72 by 80 which equals .9 and I multiplied that by 100 and got 90.
Answer:
9d = the cost of the tennisballs
Step-by-step explanation:
2x+4y+0.50z=36 represents the situation.
Step-by-step explanation:
Let,
Drinks = x
Sandwich = y
And,
Chips = z
Total amount on these items = $36
According to the statement;

2x+4y+0.50z=36 represents the situation.
Keywords: Linear equations
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Answer:
-3/4
Step-by-step explanation:
change them to improper fractions
-5/2 - (-7/4)
now multiply -5/2 by two so the denominators are the same
-10/4 - (-7/4)
subtracting a negative number is the same as adding a positive number
-10/4 + 7/4
= -3/4