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Mnenie [13.5K]
3 years ago
8

If 9 pairs of jeans cost $121.50 find the cost of 5 pairs

Mathematics
2 answers:
tatuchka [14]3 years ago
7 0

121.50 divided by 9 is 13.50. 13.50 times 5 equals 67.50

Stella [2.4K]3 years ago
5 0
Your answer will be $67.5
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Write an equation of the line that passes through (−1,3) and is parallel to the line y=2x+2.
MA_775_DIABLO [31]

The equation of the line that passes through (−1,3) and is parallel to the line y = 2x + 2 in slope intercept form is y = 2x + 5

<h3><u>Solution</u>:</h3>

Given that line passes through (-1, 3) and parallel to line y = 2x + 2

We have to find the equation of the line

Let us first find the slope of the line

<em><u>The slope intercept form of line is given as:</u></em>

y = mx + c  ---- eqn 1

where "m" is the slope of the line and "c" is the y-intercept

Comparing the given line equation y = 2x + 2 with y = mx + c,

We get slope "m" = 2

The slope of parallel lines are equal

Hence slope of the line which is parallel to y = 2x + 2 is also 2

Now let us find the equation of line with slope "m" = 2 and passes through point (-1, 3)

Substitute (x, y) = (-1, 3) in eqn 1 to find value of "c"

3 = 2(-1) + c

3 = -2 + c

c = 5

Now substitute "c" = 5 and m = 2 in eqn 1 to get equation of required line

y = 2x + 5

Thus the equation of line in slope intercept form is y = 2x + 5

4 0
3 years ago
The diagonal of a rectangle is 15 cm, and the perimeter is 38 cm. What is the area?
tigry1 [53]

Answer:

a² + b² = 15² = 225

P = 2a + 2b = 2(a + b) = 38

P² = 4(a + b)² = 38²

4(a² + 2ab + b²) = 1444

Substitute a² + b² with 225

4(2ab + 225) = 1444

2ab + 225 = 361

2ab = 136

ab = 68 cm²


5 0
3 years ago
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A security light is being installed outside a loading dock. The light must be placed at a 65° angle so that it illuminates a par
jeka57 [31]

Answer: False

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3 0
3 years ago
The volume of a cylinder with radius r and height his v = 7h
Serjik [45]

Answer: 128.5 gallons

Step-by-step explanation:

V= πr²h

V=π15²42

V= 29688.05058in³ ÷ 231 ≈ 128.5 gallons

Note- It would mean the world to me if you could mark me brainliest!

4 0
3 years ago
___ divided by 9=7<br><br> For some reason I can’t get it right
Hatshy [7]

Answer:

63

Step-by-step explanation:

9*7=63

63/9=7

7 0
3 years ago
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