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kow [346]
3 years ago
8

You and your brother are reading the same novel. You want to get ahead of him in the book, so you decide to read 30 minutes long

er than your brother reads. Write an equation for the number of minutes you read, y, when your brother reads x number of minutes. How many minutes will you read if your brother reads for 15minutes?
Mathematics
1 answer:
NemiM [27]3 years ago
6 0

the equation would be y = 30 + x and if your brother will read for 15 minutes then you'll read for 45 minutes i believe.

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Solve the following equation system by graphing<br> X-Y=4<br> X+Y=2<br> What is the solution?
AfilCa [17]
<span>X-Y=4, 
X+Y=2 
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2x = 6
x = 3

X - Y =4
3 - Y = 4
Y = 3 - 4
Y = -1

solution (3 , -1)</span>
4 0
3 years ago
A car travels 30 1/5 miles in 2/3 of an hour. What is the average speed of the cat in mph?
____ [38]

Answer:

45.3 miles/h

let 'x' be the speed of the car. Hope this will helps:)

Step-by-step explanation:

7 0
3 years ago
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Supplementary angles are angles whose son is 180. To supplementary angles are such that one angle is 4° less than three times th
zzz [600]

Answer:

The measures of angle are 46 degrees and 134 degrees.

Step-by-step explanation:

We are given the following in the question:

Let the measure of one the of the supplementary angles be x degrees.

Measure of other angle =

(3x-4)\text{ degrees}

Since, the two angles are supplementary, their sum is 180 degrees.

Thus, we can write and solve the equation:

x + (3x-4) = 180\\4x = 184\\x = 46\\(3x-4) = 134

Thus, the measures of angle are 46 degrees and 134 degrees.

7 0
3 years ago
Suppose the line of best fit for some data points has a slope of 4.915. If the mean of the x-coordinates of the data points is 1
aleksley [76]

The y-intercept of the linear equation of best fit, considering the slope and the means, is of -60.428.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

For a line of best-fit, the y-intercept is given by:

b = \overline{y} - m\overline{x}

The parameters in this problem are given as follows:

m = 4.915, \overline{x} = 14.347, \overline{y} = 10.088

Then:

b = 10.088 - 4.915(14.347) = -60.428

More can be learned about linear functions at brainly.com/question/24808124

#SPJ1

5 0
2 years ago
21 out of 24 students did their homework. What percent did NOT do their homework.
SVETLANKA909090 [29]

If 21 out of 24 students did their homework, 3 out of 24 did not do it.

This written as a fraction is 3/24 and can be reduced to 1/8.

This in decimal form is 0.125 .

To convert the decimal to a percent, multiply by 100 and put a percent sign at the end of the number.

0.125 × 100 = 12.5

12.5%

5 0
4 years ago
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