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3 years ago

6

Help with number 15 please

2 answers:

Vladimir79 [104]3 years ago

6 0

Answer: B

Step-by-step explanation:

You have two points, use the tilt formula (y2-y1)/(x2-x1)=m. The resultad is -3. And use the straight line formula y-y1=m(x-x1).

In this case, use the first point (1,2)

y-2=-3(x-1)

y-2=-3x+3

y=-3x+5

FinnZ [79.3K]3 years ago

5 0

Answer:

It's B

Step-by-step explanation:

y=mx+b

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What is the slope Of a line that passes through the points (9,8) and (2,3)?

tresset_1 [31]

$(\stackrel{x_1}{9}~,~\stackrel{y_1}{8})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{3}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{3}-\stackrel{y1}{8}}}{\underset{run} {\underset{x_2}{2}-\underset{x_1}{9}}}\implies \cfrac{-5}{-7}\implies \cfrac{5}{7}$

6 0

3 years ago

Read 2 more answers

Can someone help me real quick

nata0808 [166]

Answer: 7 rides

Step-by-step explanation:

Since it takes $4 to enter the fair, you have

$21.50 - $4 = $17.50 left to spend on rides

$17.50/$2.50 = 7 rides

hope this helps!

7 0

3 years ago

F(x) = x2 – 2x + 3; f(x) = -x + 5

creativ13 [48]

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8 0

3 years ago

Two marathon runners run the full distance of the marathon, approximately 26 miles, in 4 hours.

xxTIMURxx [149]

Answer:

6.5 miles in 1 hour and they will run 75% of the full distance in 1 hour.

Step-by-step explanation:

The distance covered by two marathon runners = 26 miles

They takes 4 hours

We need to find how many miles did they run in 1 hour

In 4 hour, the distance covered is 26 miles

To find distance covered in 1 hour, divide 26 by 4 such that.

$d=\dfrac{26}{4}\\\\d=6.5\ \text{miles/hour}$

So, they will cover 6.5 miles in 1 hour.

For percentage,

$\%=\dfrac{26-6.5}{26}\times 100\\\\=75\%$

So, they will run 75% of the full distance in 1 hour.

8 0

3 years ago

A kennel has 100 dogs in total, some are puppies and some are adult dogs. the ratio of puppies to adults in a kennel is 1:4 how

Elden [556K]

Puppies : Adults = 1 : 4

Total parts = 1 + 4 = 5

5 parts = 100 dogs
1 part = 100 ÷ 5 = 20 dogs

Answer: 20 puppies

4 0

3 years ago