The answer is A.
The numbers under the x and y represent the domain (x) and range(y) for ordered pairs. The -5 (under x) has the arrow toward the 3 (under y) so the answer for that pair would be (-5, 3)
9514 1404 393
Answer:
(D) 9/5
Step-by-step explanation:
One way to work this problem is to find % per cup for cereal and cups per % for milk, then multiply the product of those by 2.
The way we'll use here is to find the ratio of cups of milk to cups of cereal for the same % RDA.
We're given an amount of milk that has 25% of the RDA, but we want to find an amount that has 15% RDA. That amount of milk will be ...
(15%)/(25%)(1 cup milk) = 3/5 cup milk
This tells us that 3/5 cup milk has the same %RDA as 2/3 cup cereal. That ratio is ...
milk/cereal = (3/5)/(2/3) = (3/5)(3/2) = 9/10 cup of milk per cup of cereal
Then for 2 cups of cereal, we need ...
(9/10)(2 cups cereal) = 9/5 cups milk . . . . matches choice D
First convert the mixed numbers into fractions:
2 1/6 = 13/6
4 2/3 = 14/3
Now add the fractions:
13/6 + 14/3 = (13 + 14*2)/6 = (13+28)/6 = 41/6
Now convert it back to mixed number
41/6 = 6 5/6
thus 2 1/6 + 4 2/3 = 6 5/6
Hope it helps!
7. m = -5/4
8. m = -3/2
9. m = 3
10. m = -1
11. m = 1/4
12. m = 1/3
Answer:
x=-2, y=2
Step-by-step explanation:
we have
-----> equation A
----> equation B
Solve the system by graphing
The solution of the system of equations is the intersection point both graphs
using a graphing tool
The solution is the point (-2,2)
see the attached figure
therefore
x=-2, y=2
