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Aliun [14]
2 years ago
13

Help please I don’t get it

Mathematics
2 answers:
AlexFokin [52]2 years ago
8 0

Answer:

3/8

Step-by-step explanation:

Rearrange, find common denominator.

x =  \frac{7}{8}  -  \frac{1}{2}  \\ x =  \frac{7}{8}  -  \frac{4}{8}  \\ x =  \frac{3}{8}

ad-work [718]2 years ago
3 0
Answer will be 3/8 after finding the common denominators
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Charlotte runs a farm stand that sells bananas and raspberries. Each pound of bananas sells for $3.25 and each pound of raspberr
Salsk061 [2.6K]

Answer:

50 pounds of bananas

37 pounds of raspberries

Step-by-step explanation:

3.25(b) + 1.75(b - 13) = 227.25

5b - 22.75 = 227.25

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The tree in johns backyard is 7 meters high. How high is it in in centimeters?
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Answer:

700 meters

Step-by-step explanation:

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This is confusing for me
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3 years ago
Two trains travel at right angles to each other after leaving the same train station at the same time. Two hours later they are
Alex787 [66]

Answer:

15 miles per hour is the speed of the slower train.

Step-by-step explanation:

As given in the figure attached,

Let the speed of train 1 is v and train 2 is u.

Therefore, distance traveled in 2 hours by train 1 will be = 2v miles

and distance traveled by train 2 will be = 2u miles

Now we can see in the figure a right angle triangle is formed by the two trains.

AB² + BC² = AC²

(2v)² + (2u)²= (65.30)²

4v² + 4u² = 4264.09

Now we divide this equation by 4

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If speed of the slower train is v miles per hour then as per statement of the question.

u = v - 14

v = u + 14

By putting the value of v in the equation

(u + 14)² + u² = 1066

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2u² + 28u + 196 = 1066

2u² + 28u + 196 - 1066 = 0

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By diving this equation by 2

u² + 14u - 435 = 0

u² + 29u - 15u - 435 = 0

u(u + 29) - 15(u + 29) = 0

(u + 29)(u - 15) = 0

u = -29, 15

Since speed can not be with negative notation so u = 15 miles per hour will be the speed.

Therefore, 15 miles per hour is the speed of the slower train.

5 0
3 years ago
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