Answer:
14xy/(10x+7y)^
Step-by-step explanation:
Answer:
75%
Step-by-step explanation:
$39= x-(0.25x)= 0.75x
A 25% discount takes off 0.25 of the price.
x= original price
To find the original we use something like the above equation
Answer: 11
Step-by-step explanation:
Set up an equation
Based on the question, we can determine that 4x = 22 + 2x where x in is the number
"Four times a number" -> <u>4x</u>
"was" -> <u>=</u>
"22 greater than" -> <u>22 +</u>
"twice the same number" -> <u>2x</u>
Put the underlined parts together to get <u>4x = 22 + 2x</u>
Solve equation
Rearrange/collect like terms to solve for x by subtracting 2x from both sides
4x = 22 + 2x
2x = 22
Solve for x by dividing each side by 2
2x = 22
x = 11
Final Answer
x = 11
Answer:
3:8
Step-by-step explanation:
If the ratio of red marbles to blue marbles is 8:3, and the question is asking for the ratio of blue marbles to red marbles, all you have to do is switch the numbers around.
The ratio of blue marbles to red marbles is 3:8
Hope this helps!