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Goryan [66]
3 years ago
14

Ronald repairs computers. He charges $25 for a house call and $24 per hour. If Ronald charges $145 for one of his jobs, includin

g the house call, which equation can be used to find h, the number of hours he worked?
Mathematics
1 answer:
Natalija [7]3 years ago
5 0

Answer:

25+24h=145

Step-by-step explanation:

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A student measures the diameter of a small cylindrical object and gets the following readings: 4.32, 4.35, 4.31, 4.36, 4.37, 4.3
Keith_Richards [23]

Answer:

The average of the diameter readings is 4.34 cm.

Step-by-step explanation:

We  are given the following data set(cm):

4.32, 4.35, 4.31, 4.36, 4.37, 4.34

Formula:

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{26.05}{6} = 4.34167 \approx 4.34

Thus, the average of the diameter readings is 4.34 cm.

8 0
4 years ago
Which is the equation of the given line? (-10,-7) (3,-7)
Vladimir [108]

Answer:  y=-7

Step-by-step explanation:

The equation of the line in Slope-intercept form is:

y=mx+b

Where "m" is the slope of the line and "b" is the y-intercept.

Find the slope with this formula:

m=\frac{y_2-y_1}{x_2-x_1}

Given the points (-10,-7) (3,-7), substitute values into the formula. Then:

m=\frac{-7-(-7)}{-10-3}\\\\m=\frac{0}{-13}\\\\m=0

Substitute the slope and any point into  y=mx+b and solve for "b":

-7=0x+b\\b=-7

Then, substituting "m" and "b" into the equation  y=mx+b, you get that the equation of this line is:

 y=0x-7

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4 0
3 years ago
Mr. Roble is buying a lot of music on iTunes this week. On Monday, his bank account was at $30. On Tuesday, he bought 7 songs at
Sophie [7]

Answer:

Step-by-step explanation:

7 songs at $1.99 each= 13.93

30-13.93= 16.07

16.07 + 10= 26.07

4 songs for $7.99= 31.96

26.07- 31.96= -5.89

so his pay check was $5.89

6 0
3 years ago
Few flat parts have a rectangular prism
postnew [5]
Rectangle prisms have 6 flat surfaces.
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3 years ago
the price for admission for concert was $9 for adults and $4 for children all together 1770 tickets were sold in the resulting r
Contact [7]
X+y=1770
9x+4y=14680
x=1770-y
9(1770-y)+4y=14680
15930-9y+4y=14680
-5y=-1250
5y=1250
y=1250/5
y=250
children attended=250
3 0
3 years ago
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