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adoni [48]
3 years ago
15

Your friend goes shopping with $35. She buys a sweater that is on sale for half price and uses a coupon for $5 off the sale pric

e. She has $10.50 left. What was the original price of the sweater?
Mathematics
1 answer:
Artist 52 [7]3 years ago
8 0
Let S = the original price of the sweater. Now, lets step through the problem...

The friend goes shopping with $35 and ends up left with $10.50. This means she spent 35 - 10.50 = 24.50 on the sweater after the sale and coupon.

Next, the sweater is on sale for 50%. This means we take S and take 50% of that. S*.50

Next, she uses a $5 off coupon. Thus, we want to subtract $5 from the price. 

Lets combine this all together!

24.50 = S*.50 - 5

Solve for S.

24.50 = S*.50 - 5
29.50 = S*.50
$59 = S

Thus, the original price of the sweater was $59.
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how do you do #3? if you can please take a picture or just explain the process, not just the answer. (i don’t need a super detai
oee [108]

Hello from MrBillDoesMath!

Answer:

z = 28 (y/x)

Discussion:

" z varies inversely with x and directly with y"  translates into

z = k * (y/x)                 (*)

Substituting x = 2, y = 3, z = 42  in (*) gives

42 = k (3/2)                        =>   multiply both sides by 2/3

42 (2/3) = k (3/2)(2/3)         =>  42(2/3) = 28; (3/2)(2/3) = 1

28 = k

Conclusion:

z = 28 (y/x)

 

Thank you,

MrB

5 0
3 years ago
What is 1/10 of .1 thank you
Marrrta [24]
0.1 = 1/10

1/10 of 1/10 is 1/100

1/100 = 0.01

0.01 is your answer

hope this helps 
3 0
3 years ago
Boxes hold various numbers of square-based prisms in a single column. The square base of each prism has a side length of 18 inch
Vinvika [58]

Answer:

b(V) = \frac{V}{108}

Step-by-step explanation:

The square base of each prism has a side length of 18 inches. The height of each prism, h, can be found using the function, where V is the volume of the prism.

So, V = 18² × h = 324h

⇒ h = \frac{V}{324} .......... (1)

Now, given that the total height of the box, b, can be found using the function b(h) = xh, where x is the number of square-based prisms in a specific box.

Therefore, the box having 4 square prism will have height

b(h) = 3h

⇒ b(V) = 3 \times \frac{V}{324} {From equation (1)}

⇒ b(V) = \frac{V}{108} (Answer)

8 0
3 years ago
You randomly survey students in your school about whether they liked a recent blockbuster movie. The results are shown. Which is
deff fn [24]

Answer: option 2 lol

Step-by-step explanation:

6 0
3 years ago
The difference between a number and seven is less than or equal to -3.
ikadub [295]

Answer:

n ≤ 4

Step-by-step explanation:

"The difference between a number and seven is less than or equal to -3" translates into n - 7 ≤ -3. To solve, isolate the variable n.

n - 7 ≤ -3

n ≤ -3 + 7

n ≤ 4

5 0
3 years ago
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