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Sladkaya [172]
3 years ago
15

Dreya is saving money to purchase a $900 computer, and she saves $10 the first week. Each week after that, she saves $3 more tha

n the previous week, except in the last week, when she reaches $900. To have a final sum of exactly $900, how much money does Dreya need to save in her final week of saving?
$13
$60
$70
$73
Mathematics
1 answer:
Lesechka [4]3 years ago
5 0

Answer:

$ 60

Step-by-step explanation:

hope it helps!

.....

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Integrate with respect to x <br><br> 3√(2-5x)
Iteru [2.4K]
4000


yeah i just need the points here
4 0
3 years ago
if the ratio of home fans to visiting fans is 5:2 and all 42000 seats in a stadium are filled, how many visiting fans are in att
jeka94

Answer:

12000

Step-by-step explanation:

Sum the parts of the ratio, 5 + 2 = 7

Divide the total seats by 7 to find the value of one part of the ratio

42000 ÷  7 = 6000 ← value of 1 part of the ratio

visiting fans = 2 × 6000 = 12000

8 0
3 years ago
2 A garden hose supplies 36 gallons of water in 3 minutes. Use a table or eq
Vilka [71]

Answer  ↣ 12 gallons per minute

Step-by-step explanation ↣ Ok I'm gonna use ratios because I can't draw a graph here.

Ok so if the garden hose supplies 36 gallons of water in 3 minutes, then the ratio is 36:3 because every 3 minutes the garden hose "sprays" 36 gallons.

To simplify this ratio, you need find the amount of water the garden hose supplies in 1 minute.

Well to get from 3 to 1, you have to divide by 3.

Do the same thing to 36. 36/3 equals 12.

So the final ratio is 12:1

This is the unit rate. The unit rate is when one variable is 1 unit (most of the time it is speed).

You can multiply 1 by any number and multiply 12 by the same number.

Here are some ratios...

m=minutes

g=gallons

1m:12g

2m:24g

3m:36g

4m:48g

5m:60g

Hope this helped!

BTW why do I sound like this I'm not a aesthetic person-

8 0
3 years ago
How do I solve the system of equations x^2 +y=0 and x^2+y=0? I have to use substitution
Wittaler [7]
Equations
• x² + y = 0 ... (1)
• x² - 4x - y = 0 ... (2)

Answer -> (x, y) = (2, -4)

Step-by-step solution:

From equation 2,
-> y = x² - 4x ... (3)

• Substitute y into equation 1

-> x² + (x² - 4x) = 0
-> 2x² - 4x = 0
-> 2x² = 4x
-> x²/x = 4/2
-> x = 2

• Put x = 2 in equation 3

-> y = (2)² - 4(2)
-> y = 4 - 8
-> y = -4
5 0
4 years ago
A person can pay $15 for a membership to the history museum and then go to the museum
Finger [1]

Answer: the person would have to visit a total of twelve times for it to add up to $48

Step-by-step explanation:

48-15=33

then divide the 33 by 3 and you get 11 plus the 15 dollar membership and visit will get u 12 visits for $48.

7 0
4 years ago
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