<u>Define x and y:</u>
Let the first number be x and the second number be y.
<u>Setup the equations:</u>
y + 2x = 10 ----------- (1)
2y + x = 11 ----------- (2)
<u>Solve x;</u>
From (1):
y + 2x = 10
y = 10 - 2x ----------- Sub into (2)
2(10 - 2x) + x = 11
20 - 4x + x = 11
20 - 3x = 11
3x = 20 - 11
3x = 9
x = 3 ----------- Sub into (1)
y + 2(3) = 10
y = 10 - 6
y = 4
<u>Find the numbers:</u>
First number = x = 3
Second number = y = 4
Answer: The two numbers are 3 and 4.
Answer:
7/12
Step-by-step explanation:
7/9 times 6/8 (which is simplified to 3/4) comes out simplified to 7/12. You would do this because you have 7 blue marbles and 9 total marbles at first, then you take one of each away. You want to find the probability, so you multiply both fractions
The width is 3 feet. If you set up your equation like so...
lwh = A
(4) (2) (w) = 24
Then proceed to divide 24 by 4 and 2.
(4) (2) (w) = 24
/4 /4
2w = 6
/2 /2
w = 3 feet
(f+g)(x) = x^2 -2x +6x + 4
(f+g)(x) = x^2 + 4x + 4
(f+g)(x) = (x + 2)^2
(x + 2)^2 = 0
x + 2 = 0
x = -2
answer
B. -2
Answer:
g(4) = 10
f⁻¹(11) = 1
h{g(4)} =
if h(x) = (10/x) – 3 = 7
if h(x) = 10/(x – 3) = 10/7
____________
f⁻¹(x) = (x - 4) / 7