2 years ago

Find the sum of r + s, when r= -14.1 and s = 18.3

1 answer:

3 0

The answer is 4.2 because you have to replace r with -14.1 and s with 18.3. After that you subtract them and you get 4.2

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Miguel biked 14 km in the same amount of time that linda hiked 10 km. Miguel's rate was 4 km/h more than linda's. How fast did e

matrenka [14]

The first thing we must do is define a variable.

We have then:

x: Linda's speed.

Then, by definition, the time traveled is equal to the distance between the velocity.

We have then:

For Linda:

$t = \frac{10}{x}$

For Miguel:

$t = \frac{14}{x + 4}$

Then, since time is the same, then:

$\frac{10}{x} = \frac{14}{x + 4}$

Clearing Linda's speed we have:

$10 (x + 4) = 14x$

$10x + 40 = 14x$

$40 = 14x-10x$

$40 = 4x$

$x = \frac{40}{4}$

$x = 10$

Then, Miguel's speed is:

$x + 4 = 10 + 4 = 14$

Answer:

Linda's speed is 10 Km/h

Miguel's speed is 14 Km/h

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3 years ago

Can someone help me with this I don’t know that answer and I really want to pass please

Oksi-84 [34.3K]

Answer:

Step-by-step explanation:

this is because it is right

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2 years ago

Four students have summer jobs. The table shows how much each student earns after working a certain number of hours. Which stude

vlada-n [284]

Answer:

C Jacob

Step-by-step explanation:

Alfredo: 157.5/18 = 8.75

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Jacob: 142.5/15 = 9.53

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3 years ago

HURRY 98 POINT!!!! Simplify (23)–2 A. -1/64 B. 1/64 C. 2 D. 64

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as a decimal it would be 11.5

and as a fraction it would be 23/2

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20 subtracted from 6 times a certain number, the result is 94. what is the number?

tino4ka555 [31]

Let the number be x.
6x-20=94
6x=114
x=19

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3 years ago

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