All categories

3 years ago

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

Mathematics

1 answer:

Lina20 [59]3 years ago

6 0

Answer:

Step-by-step explanation:

Let Waldo's speed = W

Let Ralph's speed = W + 15

Waldo's distance = speed * Time

Time = 4 hours.

Speed = w

distance = 4 * w

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

Ralph traveled 4*(W + 15)

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.

You might be interested in

Problem:

Nezavi [6.7K]

T is equal to any number just choose one. In the end they both end up with t+1. I hope my answer is correct and sorry for my handwriting.

5 0

3 years ago

What is 5(x-2)-14x when x=4

nevsk [136]

Answer:

-46

Step-by-step explanation:

5 (x - 2) - 14x. x=4

5 (4 - 2) - 14(4) (distribute)

20 - 10 - 14(4) (multiply)

20 - 10 - 56 (subtract and solve.)

10 - 56 = -46 - solution

hope this helps (:

6 0

3 years ago

You are standing on the corner of 4th Street and 4th Avenue in a city with a rectangular street system similar to New York’s (bu

TEA [102]

Step-by-step explanation:

To get from point (4,4) to (10,10), it is the same as ordering 6 Upward and 6 Right arrows in a straight line.

=> 12C6 = 924.

However there is a restriction that we cannot have 3 Upward and 3 Right arrows as our first 6 arrows.

=> 6C3 * 6C3 = 20 * 20 = 400

Hence there are 924 - 400 = 524 different ways.

4 0

2 years ago

Boris has 20 Cd's in his music collection. Given that 20% of the CD's are rock music and 60% of them are pop music. How many CD'

kow [346]

The total amount of CD's are 100% so 100 - (20+60) = 20% -> the percentage of the other types of music. Then multiply 20% by 20 to get 4. So there are 4 CD's that are other types of music

6 0

3 years ago

Read 2 more answers

Dana Thacker's bank granted her single payment loan of 10,450 she agreed to repay the loan in 75 days at an exact interest rate

il63 [147K]

Using simple interest, it is found that the maturity value of the loan is of 10,638.

<h3>Simple Interest</h3>

The amount of money after <em>t years </em>in simple interest is modeled by:

$A(t) = A(0)(1 + rt)$

In which:

A(0) is the initial amount.

r is the interest rate, as a decimal.

In this problem:

A loan of 10450 is taken, hence $A(0) = 10450$ .

Interest rate of 8.25%, hence $r = 0.0825$

The loan will be repaid in 75 days, considering the time in years, $t = \frac{75}{365}$

Then, the maturity value of the loan is:

$A(t) = A(0)(1 + rt)$

$A\left(\frac{75}{365}\right) = 10450\left[1 + 0.0875\frac{75}{365}\right] = 10638$

The maturity value of the loan is of 10,638.

To learn more about simple interest, you can take a look at brainly.com/question/26207710

4 0

2 years ago