Answer:
Inverse Property
When adding the additive
inverse to the number, the sum
is zero.
Step-by-step explanation:
When multiplying a number by
its reciprocal, the product is multiplicative inverse.
Answer: 6 pails
Step-by-step explanation:
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Answer:
d
Step-by-step explanation:
Solve for x in first equation:
x-2y=7
Add “2y” to both sides
x=2y+7
Put this in to second equation:
3(2y+7)+2y=21
Solve for y:
Distribute the 3 into the ()
6y+21+2y=21
Combine the like y terms
8y+21=21
Subtract 21 from both sides
8y=0
Divide by 8 on both sides
y=0
Put this into the first solved equation:
x=2(0)+7
Solve for x:
Multiple 2(0)
x=0+7
Add 0 and 7
x=7
So the value of x is positive 7.
Answer:
Step-by-step explanation:
So for the given information, it would be easiest to use slope-intercept form, which is y=mx + b, where m is the slope and b is the y-intercept.
We can plug in 2/3 for the slope, because we are given that.
y=2/3x + b.
To find the y-intercept, plug in the given point for x and y and solve for b.
-5 = 2/3 · (-3) + b
-5 = -2 + b
b = -3
So now we have the complete equation of the line.
<u>y = 2/3x -3</u>
Now to graphing.
We can put the y-intercept, (0, -3), and the given point, (-3, -5) on a graph.