Answer:
The dryer costs $325.
Step-by-step explanation:
Let <em>w</em> represent the cost of the washer and <em>d</em> represent the cost of the dryer.
They cost $587 combined. In other words:

The washer costs $63 less than the dryer. Therefore:

Thus, we have the system of equations:

We can solve it using substitution. Substitute the second equation into the first. Hence:

Combine like terms:

Add 63 to both sides:

And divide both sides by two. Hence:

The dryer costs $325.
Further Notes:
And since the washer is $63 less, the washer costs:

The washer costs $262.
Answer:
12
Step-by-step explanation:
Answer:
16 girls
Step-by-step explanation:
If you have 12 boys, and the ratio is 3;4, that means you multiplied 3 times 4. To find the answer to this problem, you need to multiply 4 by 4 because you multiplied 3 by 4, and you always have to multiply or divide by the same thing if its a ratio.
Answer: 8x^4.5, 4x^3
Step-by-step explanation:
Answer:
X=-9
Step-by-step explanation: