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Vedmedyk [2.9K]
3 years ago
6

A math problem asks when two brothers will have saved the same amount of money. When Marta writes and solves the equation, her f

inal step is 3 = 7.
Assuming Marta has done everything correctly, how should she interpret this solution?
Mathematics
1 answer:
Bezzdna [24]3 years ago
3 0
That it wiil not equal out to be the same unless one of them start with money
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Cassie cleans 3 houses for $135.00. When she cleans 5 houses, she makes $225.00.. If Cassie cleans houses at a constant rate, fi
sertanlavr [38]

Answer:

45$ per house cleaned

Step-by-step explanation:

135$ / 3 houses = 45

225$/ 5 houses = 45

4 0
3 years ago
Jada was using square stickers that were 3/4in long to decorate the spine of a photo album. The spine is 10 and 1/2in long. If s
nevsk [136]

Answer:

13

Step-by-step explanation:

Given:

  1. Square stickers that were 3/4 in long
  2. The spine is 10 and 1/2 in long

If she laid the stickers side by side without gaps or overlaps so the number of sticker to cover the length of the spine:

\frac{The length of the spine}{the length of the sticker}

10 : \frac{3}{4} ≈13  

She needs 13 stickers cover the length of the spine

7 0
3 years ago
Read 2 more answers
What is the simplest form of the ratio 40:16?
Svetlanka [38]
So the greatest common factor of 40 and 16 is 8

40/8 : 16/8

5:2

The simplest form of the ratio 40:16 is 5:2

Hope this helps!
3 0
3 years ago
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You ask a neighbor to water a sickly plant while you are on vacation. Without water the plant will die with probability 0.75. Wi
Dafna1 [17]

Answer:

0.2915

Step-by-step explanation:

Let W represent water and D represent Dying probability

W = water

D = die

 

->If with water, it will die with probability 0.4

P(W & D) = 0.82 x 0.4 = 0.328

->Without water the plant will die with probability 0.75

P(W ' & D) = 0.18 x 0.75 = 0.135

Taking sum of the above values with water and without water.

P(D) = P(W & D) +  P(W ' & D) = 0.4643

P(W ' | D) = P(W ' & D) / P(D)

= 0.135 /0.463

= 0.2915 ≈ 29.15%

Thus, the probability the neighbor forgot to water is 0.2915

4 0
3 years ago
Identify the form of quadratic. *<br> f (x) = 2x2 – 5x + 7
TiliK225 [7]

Answer: The answer is -x+7

Step-by-step explanation:

Multiply the numbers 2 * 2=4

=4x-5x+7

Add similar evidence 4x + -5x =-x

-x+7

8 0
3 years ago
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