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patriot [66]
2 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]2 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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Can someone please write an equation to model this scenario which relates to the first two questions. I need it ASAP!
Vika [28.1K]

Answer:

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Step-by-step explanation:

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4, 9, 16, 25, 36, 49, 64, 81, 100, 121

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Can someone help me understand how to do this quadratic math problem
Juliette [100K]

Answer:

  put all of the expressions into the same form, such as standard form

Step-by-step explanation:

When you're trying to determine whether one expression is equivalent to another, you need to put both of the expressions into the same form. This will generally require some algebraic manipulation using the rules of equality.

Here, you're given a quadratic in standard form. From what we can see of the one partial answer, some of the choices are in vertex form. To determine if they are equivalent, you can do either of two things ...

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<em>For multiple-choice questions</em> of this type, it is often sufficient to look at one or two terms of the different equations. That is usually all it takes to separate a good answer from a bad one.

You can start with the x^2 term. Any answer choice that has an x^2 coefficient different from 1 will be rejected.

Next, you can look at the sign of the x term. Any answer choice that doesn't have a positive x term will be rejected.

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As it happens, the given equation is a perfect square, so one equivalent is ...

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When working with quadratics, it can be helpful to memorize a couple of the ways they can be written:

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3 years ago
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expeople1 [14]
3 to 9 clouds are smiley faces Explaintion- hope it’s right
3 0
3 years ago
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Write the equation of the line that contains the points (4, −7) and (1, 5). The slope of the line that contains the points (4, −
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equation
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3 years ago
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