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Allushta [10]
3 years ago
15

Jenny says the two expressions 7a – 4 + 3a - 6 and 4a – 10 are equivalent? Is she correct?

Mathematics
1 answer:
dusya [7]3 years ago
5 0
Yes, substitute a=2.
14 - 4 + 6 - 6 = -2
8 - 10 = -2
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Mrs. Hall bought a package of 8 pencils for $4.64. What is the unit price per pencil?
ahrayia [7]

Answer:

$0.58

Step-by-step explanation:

There are 8 pencils per package. To find the value of each pencil, divide the cost by 8

4.64/8 = $0.58

8 0
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Answer:

y=3x-5

Step-by-step explanation:

m=10-1/5-2

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Find the distance between the points (-4, -2) and (5, 10). If necessary, round your answer to two decimal places.
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15, if you plot the points, then seperate the x and y into two seperate lines, you can create a 3,4,5 triangle to find the distance between the points.
4 0
3 years ago
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Write an equation in slope intercept form for the line that passes through (2,-2) and is parallel to y=-5/2x+5
DENIUS [597]

y=mx+b\\y=x-2

<em>Only y= x - 2 intercepts x-axis at 2 and y-axis at -2. Thus meaning that they intercept oppositely.</em>

<em>Find if both graphs are parallel, that means the equation must be false.</em>

<em />x-2=-\frac{5}{2}x+5<em />

<em>Multiply whole equation by 2 to get rid of the fractional 2.</em>

<em />2x-(2)(2)=-\frac{5}{2}(2)(x)+5(2)\\ 2x-4=-5x+10\\2x-4+5x-10=0\\7x-14=0\\7x=14\\x=2<em />

<em>Well, that doesn't seem to be parallel. This is called one solution answer. Both graphs intercept at (2,0). There are no linear graphs that intercept at (2,-2) except for y = x-2 so there are no graphs with (2,-2) that are parallel to the equation y = -5x/2+5 </em>

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3 years ago
Question 3
Katyanochek1 [597]

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Step-by-step explanation:

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