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maxonik [38]
4 years ago
9

Andrew’s math teacher entered the seventh-grade students in a math competition. There was an enrollment fee of $30 and also an $

11 charge for each packet of 10 tests. The total cost was $151. How many tests were purchased?
Mathematics
1 answer:
astra-53 [7]4 years ago
5 0

Answer:

11 Test Packets

Step-by-step explanation:

151-30=121/11=11

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Rick O'Shea, the only employee of Hunter Furniture Company, makes $30,000 per year and is paid once a month. For the month of Ju
vazorg [7]

Answer:

  $1976.25

Step-by-step explanation:

Rick's monthly pay is $30,000/12 = $2500.

His total deductions are ...

  180 + 37 + (6.2% +1.45% +4% +0.6%)(2500) = 217 +12.25%(2500)

  = 217 +306.25 = 523.25

Rick's net pay is the difference ...

  $2500 -523.25 = $1976.25 . . . . net pay for July

5 0
3 years ago
A population has a mean muμequals=5858 and a standard deviation sigmaσequals=4242. find the mean and standard deviation of a sam
vova2212 [387]
This one is a challenge
5 0
3 years ago
Jacob is saving to buy an MP3 player that costs $195. He earns $225 a week at a part-time job. His expenses are $180 a week. If
Paha777 [63]

Jocab will take 4 more weeks to buy that MP3 player.

<u>Step-by-step explanation:</u>

Given:

Cost of MP3 player = $ 195

Earning per week = $ 225

Expenses per week = $ 180

To Find:

Weeks still required to save money for buying MP3 player.

Formula to be used:

Savings per week = Earning - Expenses

Solution:

Savings per week = Earning - Expenses

                              = $ 225 - $ 180     = $ 45

Already saved = $ 55

Need to save = $ 195 - $ 55 = $ 140

So for 4 weeks savings = $ 45 × 4 = $ 180

Thus Jocab will take 4 more weeks to buy that MP3 player.

8 0
3 years ago
Read 2 more answers
The variable z is directly proportional to x. when x is 13, z has the value 169. what is the value of z when x = 19?
malfutka [58]

Given that, the variable z is directly proportional to x.

So, we can set up an equation as following:

z = kx Where k is constant of variation.

When x= 13, z is 169.

Hence, next sep is to plug in these values in the above equation to get the value of k. Therefore,

169 = k * 13

\frac{169}{13} =\frac{k*13}{13} Divided each sides by 13.

So, k = 13

By plug in k = 13 in the above equation we will get z = 13x.

Now we need to find the value of z when x = 19.

From the above equation we will get:

z = 13 * 19

z = 247

So, z = 247.

I hope this helps you!

7 0
4 years ago
In 10 years mike will be 3. Times his current age. What is his current age
Alexus [3.1K]
He has to be 5 since 5×3=15 and each year he turns one year older so yea
8 0
3 years ago
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