It's number C, because if you get the sum of the expressions you get the perimeter of 9a + 4b - 5.
Answer:
33, 97
Step-by-step explanation:
Start by setting up equations for the equivalent angles
3z + 2 + 79 = 180
3z = 99
z = 33
3z + 2 = y
3(33)+2 = y
97 = y
12.40 am is the next time they both ring at the same time
Answer:
Step-by-step explanation:
We begin with the fact that P + Q + R = 25300. Now we need to state all of those variables in terms of just one, since we can't have more than one unknown in an equation.
If Q is half as much as P, then
Q = 1/2 P
If R has twice as much as Q, then
R = 2Q, but since Q = 1/2P then
R = 2(1/2P) which is just P. So
R = P and the equation then becomes
P + 1/2P + P = 25300 and

R also is 10120.
Since Q is half of that,
Q = 5060
Answer:
The answer is 7 cups
Step-by-step explanation:
1 cake-2 2/6 cups
Which can also be written as
1 cake-14/6 cups
3 cakes-x cup
Cross multiply
x=14/2
x=7
Therefore Karen needs 7 cups of flour to make 3 cakes