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AVprozaik [17]
3 years ago
8

A car wash business charges $10 per basic wash and $15 per ultimate wash. The total sales was $980 on a certain day. The variabl

e x represents the number of basic washes and y represents the number of ultimate washes.
Which equation models this situation?
Mathematics
2 answers:
Crank3 years ago
5 0
10x + 15y = 980

hope this helps^^
Inga [223]3 years ago
5 0

Answer:

10x + 15y = 980

Step-by-step explanation:

Here, x represents the number of basic washes and y represents the number of ultimate washes,

Since, the charge is $10 per basic wash and $15 per ultimate wash.

So, the total charges = ( 10x + 15y ) dollars

According to the question,

Total charge is $ 980,

⇒ 10x + 15y = 980

which is the required equation.

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Complete Question:

Ms. Perez's biology class grew sunflowers to learn about plants. During the first week, the average sunflower grew 3 inches. The table shows the difference from the average for three students.

Order the values of the differences from least to greatest.

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Student: Clara. Difference (in.): -1 1/2

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Answer:

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Step-by-step explanation:

See comment for complete question

Given

Differences:

\frac{4}{5}, -1\frac{1}{2}, 0.9

Required

Order from least to greatest

We have: \frac{4}{5}, -1\frac{1}{2}, 0.9

First convert fractions to decimal

\frac{4}{5} = 0.8

-1\frac{1}{2}= -1.5

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0.8, -1.5, 0.9

Now arrange from least to greatest

-1.5, 0.8 and 0.9

From the above representation,

The greatest is: 0.9

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Clara, Raj and Jacob

This is done by simply replacing the numbers with the student name.

See attachment for number line

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