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inessss [21]
3 years ago
14

Please help me solve this problem

Mathematics
2 answers:
Stells [14]3 years ago
5 0

Answer:

$180

Step-by-step explanation:

To solve, we can set up a proportion and solve.

You earn $45 for 7.5 hours of work, and you earn $ x for 30 hours of work

45/7.5=x/30

Cross multiply

45*30=7.5*x

1350=7.5x

To solve for x, we need to get x by itself. It is being multiplied by 7.5. To undo this, divide both sides by 7.5

1350/7.5=7.5x/7.5

180=x

So, for 30 hours of work, you would earn $180

Artyom0805 [142]3 years ago
5 0
Answer:

$180

Explanation:

Hours x rate (k) = amount paid
7.5 x k = 45
Divide to get k = 6
30 x 6 = 180

Hope this helps!
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Afina-wow [57]

Answer:

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Step-by-step explanation:

The bag is filled with five blue marbles and six red marbles.

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If we're getting two of the same color, this means that we are either getting Red - Red or Blue - Blue.

In other words, we can find the independent probability of each case and add the probabilities together*.

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