jay47374
contestada

Ralph and Waldo start in towns that are 70 miles apart and travel in opposite directions for 4 hours.

Ralph travels
15 miles per hour faster than Waldo.

Let w stand for Waldo's speed and write algebraic expressions to answer the
following questions


a. How far did Waldo travel?


miles



b. What was Ralph's speed?


mph



C. How far did Ralph travel?


miles



d. What is the distance between Ralph and Waldo after the 4 hours?


miles

Ralph and Waldo start in towns that are 70 miles apart and travel in opposite directions for 4 hours Ralph travels 15 miles per hour faster than Waldo Let w sta class=

Respuesta :

jcherry99

Answer:

Step-by-step explanation:

Let Waldo's speed = W

Let Ralph's speed = W + 15

A

Waldo's distance = speed * Time

Time = 4 hours.

Speed = w

distance = 4 * w

B

Ralph's speed is W + 15. It's not clear if you need a number. We'll get around to that later.

C

Ralph traveled  4*(W + 15)

D

4w + 70 + 4(W + 15) = d

You really can't get a definite answer to these questions. Even if you knew whether they were heading away from each other or towards each other it wouldn't help.

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