Answer:
b. 15a +20b
Step-by-step explanation:
Given:
5 (3a+4b)
= 15a + 20b
a. 15a + 4b
Not equivalent
b. 15a +20b
Equivalent
c.5a+3a+4b
= 8a + 4b
Not equivalent
d. 5a+10a b+3b
= 15a + 4b
Not equivalent
e. 10a +5a +15b +3b
= 15a + 18b
Not equivalent
Answer:
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
The slope-intercept form:
y = mx + b
m - slope
b - y-intercept
-------------------------------------
2x + y = -3 <em>subtract 2x from both sides</em>
y = -2x - 3
-2y = 6 + 4x
-2y = 4x + 6 <em>divide both sides by (-2)</em>
y = -2x - 3
We have the same equations. Therefore the system of equations is dependent. Has an infinite number of solutions
x ∈ R
y = -2x - 3
Answer: 0.31
Step-by-step explanation:
7/22 is 0.31