Answer:
15
Step-by-step explanation:
9/3=3, 3x5=15
L=22w (w=width, l=length)
l*w=2626
Substitute 22w for l, getting 22w^2=2626. Divide by 22 to get 119.36 (and more decimals!), and square root that to get 10.9 (rounded) for the width and 240.4 (rounded) for the length
Answer:
A) -1/3
Step-by-step explanation:
y = mx + b
m = slope
b = y-intercept
y = -1/3x + 2
m = -1/3
Answer: The apple costs 0.45
Step-by-step explanation: Oranges will be x in our equations and Apples will be y.
Anna's equation is: 3x + 6y = 4.5 (1)
Maria's equation is: 2x + 2y = 2.1 (2)
As we need to find y, we need to cancel x, this way, we multiply equation (1) by 2 and equation (2) by 3.
3x + 6y = 4.5 (x2)
2x + 2y = 2.1 (x3)
__________________
6x + 12y = 9
6x + 6y = 6.3
__________________
Now, we subtract them
6x + 12y = 9
-6x - 6y = -6.3
________________
6y = 2.7 → y = 2.7/6 → y = 0.45
Khan academy has a lot on this sorry I couldn't answer bro