So they tell you to let x represent the cost of Deandra's sofa. So since Selena's sofa costs 30 dollars LESS than HALF the cost of Deandra's, we know we have to divide by 2 and subtract 30.
The equation would be x/2-30. (B)
Answer:
114+18=132
Step-by-step explanation:
1 mile = 6.45 minutes
? miles = 30 minutes
? miles = 30 / 6.45 = 4.65116279 (round up)
4.7 miles = 30 minutes
So roughly 4 and a half miles in 30 minutes
Answer: " r = a + b - s " .
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Step-by-step explanation:
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Given:
a + b = s + r ; Solve for: "r" ; that is; rewrite the equation in terms of: " r " .
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Subtract "s" from each side of the equation;
to isolate "r" on one side of the equation:
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→ a + b - s = s + r - s ;
→ to get:
→ a + b - s = r ;
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↔ " r = a + b - s " .
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→ which is the answer.
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Hope this helps!
Best wishes to you!
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