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astraxan [27]
3 years ago
14

Sebastian saved money in his piggy bank. He kept track on how much money he saved at the end of each week on the line graph belo

w.
How much money had Sebastian saved by the end of seven weeks?

Mathematics
2 answers:
jenyasd209 [6]3 years ago
5 0
X: weeks
Y: total amount saved

(2,30) (4,40)

M=40-30. 10
———- = —- = 5
4-2 2

Y=5x + B
30= 5(2) + B
30=10 + B
-10 -10
20= B


Y= 5x+20
Y= 5(7) + 20
Y= 35+20
Y=55$ Amount saved.
Luba_88 [7]3 years ago
4 0

Answer:

$90

Step-by-step explanation:

Look at the number 7 on the bottom right of the graph. That means at the end of 7 weeks. Now look vertically up from there until you see a point directly above 7 weeks. Look to the left of that point, and you see that the point directly above 7 weeks is at the level of $90. That means that at the end of 7 weeks, he had $90.

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Pls answer with explanation!
patriot [66]

Answer:

3,750 cars.

Step-by-step explanation:

We are given that the equation:

y=9000-2.4x

Models the relationsip between <em>y</em>, the number of unfilled seats in the stadium, and <em>x</em>, the number of cars in the parking lot.

We want to determine the number of cars in the parking lot when there are no unfilled seats in the stadium.

When there are no unfilled seats in the stadium, <em>y</em> = 0. Thus:

0=9000-2.4x

Solve for <em>x</em>. Subtract 9000 from both sides:

-2.4x=-9000

Divide both sides by -2.4:

x=3750

So, there will be 3,750 cars in the parking lot when there are no unfilled seats in the stadium.

4 0
3 years ago
F(x)=2^x evaluate f(5)
Helen [10]

Hey there!

To solve this, we will first replace x with 5 anytime we see it in the equation.

f(5) = 2^5

Now, we simplify 2^5.

The base is 2 and the exponent is 5 in this case.

The exponent is the number of times you multiply the base by itself. In oour case:

2 x 2 x 2 x 2 x 2 = 32

f(5) = 32

Hope this helps!

3 0
3 years ago
Need quick help on this
Masteriza [31]

Answer:

C.

Step-by-step explanation:

I cant really explain it but i had the same question and had the answer worked out on the paper

Hope it helps :3 (tell me if it was right or wrong so i know if i need to fix something later)

8 0
2 years ago
Match the correct y=mx+b equation tot he graph<br><br> show explanation please
mr Goodwill [35]

Answer:

y=-x+3

Step-by-step explanation:

y=-x+3

you can see the negative slope in the direction

the +3 comes from the 3 in the x and y intercepts

m=-1

3 0
2 years ago
PLEASE HELP ASAP!!!!!!
horsena [70]

Answer:

it is negative bc it runs down when it runs up it is positive

3 0
2 years ago
Read 2 more answers
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