Answer:
-171
Step-by-step explanation:
Applying PEMDAS (order of operations),
We open the parenthesis first;
-9 - ()³ × 6
-9 - 3³ × 6
We work on multiplication next;
-9 - 27 × 6 = -9 - 162
finally we do subtraction to get;
-9 - 162 = -171
1/2 - 13/4 + 29/4 Can someone help? Please
2 answers:
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Answer
Find out the At how many hours of work will the total cost be the same for both families .
To prove
Let us assume that the number of hours at which the total cost be the same for both families be x .
As given
Smith's family contractor charges $16.50 per hour plus $289 in supplies .
Jackson's family contractor charges $18.75 per hour and $274.60 in supplies.
Than the equation becomes
16.50x + 289 = 18.75x + 274.60
16.50x - 18.75x = 274.60 - 289
-2.25x = -14.4
x = 6.4 hours
Therefore in 6.4 hours of work will the total cost be the same for both families .