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3 years ago

What is an equation for the line with slope 2/3 and y intercept 9

Mathematics

1 answer:

dybincka [34]3 years ago

3 0

Y = 2/3x+9, or
2x-3y=-27

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Solve the following system of equations by graphing.

never [62]

Answer:

(x,y)=(3,1)

Step-by-step explanation:

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2 years ago

Which point does the line with equation y+4=3(x-7) pass through?

gregori [183]

y+4=3(x-7)
y + 4 = 3x - 21
y = 3x - 21 -4
y = 3x - 25

when x = 7
y = 3(7) - 25
y = -4
Therefore (7, -4) pass through this equation

5 0

2 years ago

Scott likes to run long distances. He can run 20 \text{ km}20 km20, start text, space, k, m, end text in 858585 minutes. He want

aleksandrvk [35]

Answer:

Scott will take 221 minutes to run 52 km

Step-by-step explanation:

Speed

The speed of an object can be calculated with the formula:

$\displaystyle v=\frac{d}{t}$

Where d is the distance traveled and t is the time taken.

Scott can run d=20 km in 85 minutes. Thus, his speed is:

$\displaystyle v=\frac{20}{85}\ km/min$

Now he wants to know how many minutes it will take him to run d=52 km. Solving the formula for t:

$\displaystyle t=\frac{d}{v}$

Since the speed has been already determined:

$\displaystyle t=\frac{52}{\frac{20}{85}}$

Multiplying by the reciprocal of the denominator:

$\displaystyle t=52*\frac{85}{20}$

t = 221 min

Scott will take 221 minutes to run 52 km

4 0

2 years ago

Read 2 more answers

Write an inequality for the following situation

jeka94

No more means less or equal.So, correct answer is A. x ≤ 8 .

8 0

2 years ago

Explain two ways to solve 20=5(-3+x)

Ne4ueva [31]

Answer:

I only know one way and its x = 7

Step-by-step explanation:

20 = 5( x -3 )

20/5 = x- 3

4 = x - 3

4 + 3 = x

7 = x

4 0

2 years ago

Read 2 more answers