If the ratio is 4:5, then we have 4 + 5 = 9 "parts" of the ratio. What we want to do is to divide 18 by 9 to find out how many cups are in such a "part":
18 / 9 = 2
So if we know that there are 2 cups in each "part", If we want to make the ratio 4:5, all we need to do is to multiply 4 by 2 and 5 by 2:
4 * 2 = 8
5 * 2 = 10
So from 18 cups we can make two groups of 8 and 10 cups to keep the ratio of 4:5.
Answer:Let x = pay per hour as a carpenter and y = pay per hour as a blacksmith
Last week she worked 12 hours as a carpenter
earning 12x dollars
and 20 hours as a blacksmith
earning 20y dollars
and earned a total of $860
and those two things add up to 860.
Do the same with the other sentence, giving you a second equation.
Step-by-step explanation:
Answer:
Step-by-step explanation:
so
Answer:
y = 1/2x
Step-by-step explanation:
Choose two points- I chose (10,5) and (0,0)
Find the slope using y2-y1/x2-x1
Use y - y1 = slope (x -x1) to get your equation
The answer should be y =1/2x
Hopefully this helps- let me know if you have any questions