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3 years ago

13

Hailey works at a gift shop after school she is paid $10 per hour plus 15% commission on merchandise she sells .select an equati

on that represents her earnings in a week if she sold $550 worth of merchandise

1 answer:

Alex777 [14]3 years ago

4 0

Let x be number of hours worked
Therefore hourly income= 10x
15% of 550=82.5
Thus total income=$ (10x + 82.5)

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Angelina has a fish tank in the shape of a rectangular prism. The fish tank is 20 inches long, 7 inches wide, and 12 inches tall

igor_vitrenko [27]

Answer: 1680 inches cubed

Step-by-step explanation:

Volume = Length x Width x Height

V = 20 x 7 x 12

V = 140 x 12

V = 1680 inches cubed

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3 years ago

Explain in words, how you to find a solution for the following equation. 7 + x = 18

zheka24 [161]

Answer:

x=11 (read below)

Step-by-step explanation:

7 + x = 18

<em>Subtract 7 from both sides</em>

x=11

It's quite simple because if you do something to one side of the equation, you need to do it to the other because otherwise the equation won't be equal. This is how you need to simplify most problems, by taking something from one side and taking from the other as well.

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3 years ago

Read 2 more answers

40 pts and Brainliest pls give detailed answer :)

horsena [70]

Answer:

58 ft

Step-by-step explanation:

So I attached a diagram that illustrates the triangle that is formed. We know an angle, as well as the hypotenuse. We are looking for the height, or in other words the opposite side of the angle. There is a trigonometric function defined as: $sin(\theta) = \frac{opposite}{hypotenuse}$ . Using this we can plug in known values and solve for the opposite side, which I'll simply represent as x.

$sin(46) = \frac{x}{80}$

Multiply both sides by 80

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Calculate sin(46) using a calculator (make sure it's in degree mode)

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Simplify

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Round this to the nearest foot

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1 year ago

A random sample of eighty-five students in Chicago city high schools takes a course designed to improve SAT scores. Based on the

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Answer:

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Step-by-step explanation:

Confidence interval is the range the true values fall in under a given <em>confidence level</em>.

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90% confidence interval means that there is 90% probability that the statistic (in this case SAT score improvement) of a member of the population falls in the confidence interval.

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3 years ago

4 tomatoes and 8 avocados cost $10. Six tomatoes and 14 avocados cost $17. How much does a single avocado and a single tomato co

Nataly_w [17]

Answer:

One avocado costs $1 and one tomato costs $0.50

Step-by-step explanation:

Set up a system of equations where t is the number of tomatoes and a is the number of avocados:

4t + 8a = 10

6t + 14a = 17

Solve by elimination by multiplying the top equation by 3 and the bottom equation by -2:

12t + 24a = 30

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Add them together and solve for a:

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Plug in 1 as a into one of the equations and solve for t:

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So, one avocado costs $1 and one tomato costs $0.50

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2 years ago