Think of it like fractions. If the total of Emily's class is 40% or $580, put it into fractions. You know the total of everything is 100% and her class raised 40%. So write it as a fraction, 40 over 100. Then, write another fraction with 580 on the top, equivalent to 40%. Then you must cross multiply and divide. So multiply 100 times 580 and divide the product by 40 to get the equivalent of 100%. Therefore, the answer would be $1450. Make sense? Maybe this picture will help.
Answer:
Iron: 280m³
Zinc: 105m³
Tungsten: 35m³
Step-by-step explanation:
8+3+1 = 12
(8/12)×420 = 280
(3/12)×420 = 105
(1/12)×420 = 35
Answer:
whats the question love?
Step-by-step explanation:
First, multiply. 7x-14-4x+9. Now, add the like terms. 3x-5.