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Lera25 [3.4K]
4 years ago
9

Evaluate 10x2y-2 for x = -1 and y = -2. 5/8 2 1/2 10(2)^0 40

Mathematics
1 answer:
Norma-Jean [14]4 years ago
6 0

Answer:

2\frac{1}{2}

Step-by-step explanation:

we have

10x^{2} y^{-2}

we know that

10x^{2} y^{-2}=10\frac{x^{2}}{y^{2}}

Substitute the value of x=-1 and y=-2 in the expression

10\frac{(-1)^{2}}{(-2)^{2}}

10\frac{1}{4}

\frac{10}{4}

Simplify

\frac{5}{2}=2\frac{1}{2}

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Answer:

She makes $1041 in 2 weeks

Step-by-step explanation:

First, we can work on finding how much she makes in a day. To find the daily income, we need to multiply 17.35 by 6 since she works 6 hours a day.

17.35x6=104.1

She makes $104.10 a day. Now we multiply by 5 since she works 5 days a week

104.10x5=520.50 a week

Since we are trying to find how much she makes in two weeks, we multiply the weekly income by 2

520.5x2=1041

She makes $1041 in 2 weeks

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3 years ago
The Greenville city soccer league has 1,230 players. Spruceburgh's league has 3 times as many players as the Greenville league.
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Step-by-step explanation:

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3 years ago
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Kari is on a trip to Italy. She has made a list of cities she would like to tour while she is there, as well as how much she exp
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Unit conversion is a way of converting some common units into another. Kari cannot afford to see Genoa, because it would put her $84. 48 over budget.

<h3>What are Units conversions?</h3>

Unit conversion is a way of converting some common units into another without changing their real value. for, example, 1 centimetre is equal to 10 mm, though the real measurement is still the same the units and numerical values have been changed.

The cost of the Kari visiting the Vatican, Rome, Naples, Venice, and Milan are €68.77, €95.41, €71.06, €113.38, and €49.69. Therefore, the total cost of visiting these places would be,

Total Cost = €68.77 + €95.41 + €71.06 + €113.38 + €49.69

                  = €398.31

Now, as it is given that 1$ is equal to 0.6859€, therefore, if we convert the amount that is already spent by Kari to visit these places in dollars, we will get,

\rm Total\ cost = \dfrac{398.31 }{0.6859} = \$\ 580.72

The amount that is left with Kari,

\rm \text{Amount left with Kari} = (Budget\ of\ Kari)-(Total\ cost)

                                    = \$585-\$580.72\\\\=\$4.28

Also, the cost of visiting Genoa is €60.85, now, if the cost is converted to dollars we will get the cost to visit Genoa,

\text{Cost of visiting Genoa} = \dfrac{60.85}{0.6859}=\$88.72

Thus, the cost of visiting Genoa is $88.72, while the amount of budget that is left with Kari is $4.28, therefore, Kari cannot afford to see Genoa, because it would put her $84. 48 over budget.

Learn more about Units conversion:

brainly.com/question/4736731

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