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patriot [66]
3 years ago
13

Joan is a babysitter. She earns $8.50 per hour. Joan wants to buy a new phone that costs $161.50 with the tax included. Write an

equation relating the number of hours she needs to babysit to the amount of money she earns. Find out how many hours Joan must babysit to buy the phone. Use h to represent the number of hours Joan babysits.
Mathematics
1 answer:
lara31 [8.8K]3 years ago
3 0

Answer:

8.5=161.50;h= 19 hours

Step-by-step explanation:

So its pretty easy all you have to do is multiply 8.5 x 19

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I need help ASAP please “f(x)= ?”
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Step-by-step explanation:

just think - what does it mean to translate (shift) a graph upward by 5 units ?

does the graph change in its content ? no. all the functional result value (= y values or coordinates) are still calculated as before, BUT before marking them on the chart the y values are moved up by 5 units. that means they are increased by 5 (that is the only way to move something "up" on a coordinate grid).

so, in other words, f(x) is nothing else but h(x), but it increases the results of h(x) consistently by 5.

h(x) = 2x² + 4

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3 years ago
Simplify 9/20 × 4/5
Cerrena [4.2K]
<span>Answer:  18/25 ; or, write as:  0.72  .
_____________________________________
Explanation:
<span>_____________________________________
</span>
9/20  * 4/5  = (</span>9*4) / (10*5) = 36/50 ; 
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36/50 = </span>(36÷2) / (50÷2) = 18/25 ; or, write as:  0.72  .
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3 years ago
448 = -5v + 8(-5 - 7v)<br> What is v?
lapo4ka [179]

Answer:

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Step-by-step explanation:

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shtirl [24]
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Answer:

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7 0
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