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3 years ago

Find the equation of the line specified. The slope is -4, and it passes through ( 5, 8).

Mathematics

2 answers:

Dmitry [639]3 years ago

8 0

The correct answer would be B) -4x+28

ollegr [7]3 years ago

4 0

Answer:

B. y= -4x + 28

Step-by-step explanation:

To find the equation of this line first put it into slope-point form, $y-y_{1} =m(x-x_{1})$ where $y_{1}$ and $x_{1}$ are the y and x coordinates and m is the slope. So plug in the information to get the equation, y-8=-4(x-5). Then solve for y,

First, distribute the -4

y-8=-4x+20

Next, add 8 to both sides

y=-4x+28

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Natasha_Volkova [10]

Answer: 9.46

Step-by-step explanation:

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2 years ago

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James has $325 in his savings account. He spends $28 a week. How many, w, weeks until he has $157 left in his account?

otez555 [7]

Answer:

6 weeks

Step-by-step explanation:

Total savings= $325

For every week, his total savings decrease by $28.

Let's form an expression for the amount of money left in his account after w weeks.

325 -28w= 157

28w= 325 -157

28w= 168

<em>Divide by 28 on both sides:</em>

w= 168 ÷28

w= 6

Thus, there are 6 weeks until he has $157.

3 0

2 years ago

Need the answer please answer my question

meriva

Answer:

166.336 Cubic Centimeters

Step-by-step explanation:

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11.3 x 4.6 x 3.2 is 166.336

3 0

2 years ago

Scratchpad

laiz [17]

Answer:

The correct option is option (B)

Yes, he will have enough poster board because 10 = 2.5 feet. Then, 2.5 x 2 = 5 square feet .

Step-by-step explanation:

1 foot = 12 inches.

Fabian needs 45 square feet of poster board for an art.

Actually, the area of the poster is 4.5 square feet.

[Since the unit of 4.5 is square feet, so it is unit of area.]

He buys a sheet of poster board with length 30 inches and a width 2 feet.

The units of length and width are not same.

So, first we need to convert the width in inches.

The length of the sheet is = 30 inches

=(30÷12) inches

=2.5 feet.

Total area of the sheet = length×width

=(2.5×2) square feet

= 5 square feet

So, the area of sheet is more than the area of poster.

Yes, he will have enough poster board because 10 = 2.5 feet. Then, 2.5 x 2 = 5 square feet .

3 0

3 years ago

There are 53 students on the Jackson Middle School basketball teams. The number of 8th graders is 15 fewer than three times the

pshichka [43]

Answer:

The number of 7th students on the Jackson Middle School basketball teams is 17 and the number of 8th students on the Jackson Middle School basketball teams is 36

Step-by-step explanation:

Let

x ----> the number of 7th students on the Jackson Middle School basketball teams

y ----> the number of 8th students on the Jackson Middle School basketball teams

we know that

There are 53 students on the Jackson Middle School basketball teams

$x+y=53$ -----> equation A

The number of 8th graders is 15 fewer than three times the number of 7th graders

$y=3x-15$ ----> equation B

substitute equation B in equation A

$x+(3x-15)=53$

solve for x

$x+3x=53+15\\4x=68\\x=17$

Find the value of y

$y=3(17)-15=36$

therefore

The number of 7th students on the Jackson Middle School basketball teams is 17 and the number of 8th students on the Jackson Middle School basketball teams is 36

6 0

3 years ago

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