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Illusion [34]
4 years ago
15

Hong went shopping after she woke up. It took Hong 20 minutes to get ready to go shopping. She shopped for 45 minutes and then s

pent 40 minutes eating a snack. Then she talked on the phone with her friends for 30 minutes. She finished talking to her friends at 10:40 a.m. What time did Hong wake up? A. Work backward. Hong started talking with her friends at 10:10. Hong started eating at 9:30. Hong started shopping at 8:45. Hong woke up at 8:25. B. Work backward. Hong started talking with her friends at 10:40. Hong started eating at 11:10. Hong started shopping at 11:50. Hong woke up at 12:25. C. Work backward. Hong started talking with her friends at 10:20. Hong started eating at 9:40. Hong started shopping at 8:55. Hong woke up at 8:35
Mathematics
1 answer:
S_A_V [24]4 years ago
7 0
You've answered this yourself hong would wake up at 8:35
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B) A white shirt costs $. 2.50, and a blue shirt costs $. 1.50
djyliett [7]
<h3><u>Answer</u> :</h3>

Cost of white shirt = 2.50 $

Cost of blue shirt = 1.50 $

We have asked to find percentage difference.

<u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u><u>_</u>

:\implies\sf\:\dfrac{cost_{blue}-cost_{white}}{cost_{blue}+cost_{white}}\times 100

:\implies\sf\:\dfrac{2.50-1.50}{2.50+1.50}\times 100

:\implies\sf\:\dfrac{1}{4}\times 100

:\implies\:\boxed{\bf{\gray{25\:\%}}}

4 0
3 years ago
Solve for Z.<br> 3z - 12 =48
marysya [2.9K]

Answer:

Z = 20

Step-by-step explanation:

3 x 20 = 60

60 - 12 = 48

4 0
3 years ago
Read 2 more answers
If a=2, b=-3, c=4<br> ab - bc =
Elza [17]
2(-3)-(-3)(4) = -6-(-12) = -6+12 = 6
5 0
2 years ago
Read 2 more answers
Find the solution set.<br> 8x^2+7x-1=0
Likurg_2 [28]

Answer:

x = - 1, x = \frac{1}{8}

Step-by-step explanation:

Given

8x² + 7x - 1 = 0 ← in standard form

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term

product = 8 × - 1 = - 8 and sum = + 7

The factors are + 8 and - 1

Use these factors to split the x- term

8x² + 8x - x - 1 = 0 ( factor the first/second and third/fourth terms )

8x(x + 1) - 1(x + 1) = 0 ← factor out (x + 1) from each term

(x + 1)(8x - 1) = 0

Equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

8x - 1 = 0 ⇒ 8x = 1 ⇒ x = \frac{1}{8}

3 0
3 years ago
Read 2 more answers
Decide whether the rates are equivalent. 17 heartbeats in 15 seconds or 68 heartbeats in 60 seconds. I don't get it.
Lena [83]
Well start off by simplifying each rate:

17/15 --> can't be further simplified
68/60 = 34/30 = 17/15

So then, yes these rates are equivalent.

Also, you can divide 17/15 and 68/60 and compare the quotients.
4 0
3 years ago
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