3 years ago

Kyle's phone bill is 45 per month how much does he have to pay for half a year of phone service

Mathematics

1 answer:

olya-2409 [2.1K]3 years ago

8 0

For half a year Kyle's phone bill would come up to be $170

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9x-2y=-21 2x+3y=16 Substitution

hjlf

$9x-2y=-21 \\\\ 9x=-21+2y \\\\ => \boxed{x=\frac{2y-21}{9}} \\\\ 2x+3y=16 \\\\ 2*\frac{2y-21}{9}+3y^{(9}=16^{(9} \\\\ 2(2y-21)+27y=144 \\\\ 4y-42+27y=144 \\\\ 31y=144+42 \\\\ 31y=186 \\\\ \boxed{y=\frac{186}{31}=6} \\\\ x=\frac{2*6-21}{9} \\\\ x=\frac{12-21}{9} \\\\ x=\frac{-9}{9} \\\\ \boxed{x=-1}$

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3 years ago

Please help me this due soon

o-na [289]

Answer is 108 cause you will multiply 13.5 by 8 and get 108.

In short Answer is 108.

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3 years ago

Tom is the deli manager at a grocery store. He needs to schedule employees to staff the deli department at least 260 person-hour

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The expression that could best describe the statement would be " 40 n + 20 $\geq$ 260.

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3 years ago

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It has taken me 32 minutes to drive 48 km. If the total length of my journey is 146 km and I

pentagon [3]

Answer: 1h and 25min

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Then we 146 divided by 1.5 = 97 and a third to find out how long it takes to drive 146km.

Then we convert it to hours to get 1h and 57min.

Then we - 32 because we already drove 32min. 1h and 57min - 32 = 1h and 25min

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2 years ago

Jamie has 4 apples and 6 bananas. Each apple cost 0.75 and each banana cost 0.6” write an expression representing the total cost

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(0.75*4) + (0.6*6) = 6.6

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