Ask question

Ask question

All categories

2 years ago

13

Marco can build a computer twice as fast as Cliff. Working together, it takes them 5 hours. How long would it have taken Marco w

orking alone?

1 answer:

seraphim [82]2 years ago

3 0

Answer:

7.5 hours

Step-by-step explanation:

Let Marco's speed be M

Cliff's speed be C

M = 2C

Combined speed:

M + C

2C + C = 3C

3C = W/time

3C = W/5

W = 15C

2C = 15C/time

Time = 15/2 = 7.5 hours

You might be interested in

If X = 2 inches, Y = 8 inches, W = 4 inches, and Z = 4 inches, what is the area of the object?

max2010maxim [7]

Answer:

C. 63 square inches

4 0

2 years ago

Solve these 3 questions.

BaLLatris [955]

Answer:

1. x = 13

2. x=17

3. y= 34

Step-by-step explanation:

7 0

2 years ago

What is the area of this trapezoid? Please find the answer and equation.

Troyanec [42]

Answer:

A=a+b

2h=20+8

2·20.4≈285.6

Step-by-step explanation:

5 0

2 years ago

At the end of june Mr kent had a Balance of $375.98 . Since then he has Written Check for $38.56 and made a deposit of $408.00.

zmey [24]

$745.42 because $375.98 - $38.56 = $337.42. Since Mr. Kent deposited $408.00 into his balance at the bank, $408.00 + $337.42 = $745.42.

3 0

3 years ago

Solve for x.<br> (7x - 1)•<br> (6x - 1)•

leonid [27]

Answer:

42x^2 - 7x - 6x + 1

42x^2 - 13x + 1 for FOIL method

To solve for x

7x - 1 = 0

7x = 1

x = 1/7

6x - 1 = 0

6x = 1

x = 1/6

Step-by-step explanation:

4 0

2 years ago