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aliina [53]
3 years ago
7

George was reading a mystery story. He read 42 pages in one hour. At this rate how many pages can he read in 40 minutes?

Mathematics
1 answer:
Viefleur [7K]3 years ago
5 0

Answer:

56.8

Step-by-step explanation:

Ratios.

42------60

1----------1.42

40-------56.8

First, divide 42 by 42 which is one. Then, divide 60 by 42, which is 1.42.

Next, multiply 1 by 40. Finally multiply 1.42 by 40 which is 56.8. Hope this helps

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I got 2 km per hour

Step-by-step explanation:

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Ryan and Allison want to build a ramp to help their elderly cat, Simms, walk up the bed. They
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Step-by-step explanation:

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Ms. Anguiano is enjoying a bicycle ride on a country road
GalinKa [24]

Answer:

The rate is 13 miles per hour

Step-by-step explanation:

* Lets explain how to solve the problem

- Jim lives three miles east of State College

- At noon, he leaves his house and begins to walk due east at a

constant speed of 2 miles per hour

- Annie lives four miles north of State College

- At noon, she leaves her house and begins to bicycle due north at a

constant speed of 8 miles per hour

- The east is perpendicular to the north

* Lets solve the problem

∵ At noon means 12 p.m

∵ They moved till 1 p.m

∵ Jim walked for 1 hour and Annie bicycled for 1 hour

∵ The rate of Jim is 2 miles per hour

∵ The rate of Annie is 8 miles per hour

- The distance = rate × time

∴ Jim walked = 2 × 1 = 2 miles

∴ Annie bicycled = 8 × 1 = 8 miles

- Lets calculate the distance of Jim from the State College till his

position at 1 p.m

∵ Jim lives three miles east of State College

∴ His distance at 1 p.m = 3 + 2 = 5 miles east

- Lats calculate the distance of Annie from the State College till her

position at 1 p.m

∵ Annie lives four miles north of State College

∴ Her distance at 1 p.m = 4 + 8 = 12 miles North

- Lets find the distance between them at 1 p.m

∵ The north ⊥ east

- Use Pythagoras Theorem to find the distance

∴ The distance = √(5² + 12)² = √(25 + 144) = √169 = 13 miles

- The rate = distance/time

∵ The distance between them is 13 miles in 1 hour

∴ The rate = 13/1 = 13 miles per hour

* The rate is 13 miles per hour

6 0
3 years ago
Looking for the 2 correct answers please
Fynjy0 [20]

Answer:

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Step-by-step explanation:

The sine of an angle is equal to the cosine of its complement, and vice versa.

  sin ∠QOP = cos ∠ROQ

  cos ∠ROQ = sin ∠QOP

8 0
2 years ago
If Rob Stone had 2 phones and He gave 1 away how many phones he got left
Neporo4naja [7]

Answer:

1

Step-by-step explanation:

4 0
3 years ago
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