All categories

3 years ago

Kelly works 8 hours less than three times as much as Marcy works for the week. Which expression represent

Mathematics

1 answer:

Marysya12 [62]3 years ago

3 0

Answer:

X= 3y-8

Where

X represent hours worked by Kelly

Y represent hours worked by Marcy

Step-by-step explanation:

Kelly works 8 hours less than three times as much as Marcy works for the week.

Let the number of hours worked by Kelly= x

Let the number of hours worked by Marcy= y

X= 3y-8

You might be interested in

5 more than the quotient of a number and 8 is 42

Zepler [3.9K]

Answer:

The number is 296.

Step-by-step explanation:

Let's call "x" to the number we are looking for.

Now, the problem states that "5 more than the quotient of a number and 8 is 42". This means that this number is being divided by 8, it's also being additioned 5 and the final result is 42. Therefore, the expression of this operations on this number is the following:

$\frac{x}{8}+5=42$ . Let's solve the equation to find x.

1. Write the expression.

$\frac{x}{8}+5=42$

2. Substract 5 from both sides and simplify.

$\frac{x}{8}+5-5=42-5\\\\\frac{x}{8}=37\\\\$

3. Multiply 8 on both sides and simplify.

$8*\frac{x}{8}=37*8\\\\x=296$

We have found our number, it's 296!

3 0

2 years ago

Read 2 more answers

El resultado de la adición 1/3 + 1/9 es =?

murzikaleks [220]

Answer:

4/9

Step-by-step explanation:

You're welcome i worked it out on a piece of paper

5 0

3 years ago

I am simplifying radicals and I've come across one that has me a bit confused.

zhenek [66]

The sqrt of (34 m^4) is sqrt(34) times sqrt(m^4).

The sqrt of m^4 is easy ... that's just m^2 .

The other part is more messy. There's not much you can do with it.

sqrt(34) = sqrt(17) times sqrt(2).

That doesn't help make it any simpler.
You might as well just leave it as sqrt(34).

Then the final, simplified form of the original expression is

m^2 sqrt(34)

5 0

3 years ago

What is the distance between Point A: (-4, -3) and Point B (1, 4) ?

Sholpan [36]

Answer:

sq rt 74 which is approx 8.6

Step-by-step explanation:

use distance formula

6 0

3 years ago

- 2(x+5) = -2 Directions say solve for the equation

erik [133]

Answer:

x = -4

Step-by-step explanation:

Distribute:

-2(x + 5) = -2

-2(x) -2(5) = -2

Multiply:

-2(x) -2(5) = -2

-2x - 10 = -2

Add 10 on both sides:

-2x - 10 = -2

+10 +10

-2x = 8

Divide by -2 on both sides:

-2x = 8

/-2 /-2

x = -4

3 0

4 years ago