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hjlf
2 years ago
12

Y=-7 + 2x how to graph

Mathematics
1 answer:
blondinia [14]2 years ago
8 0
I know for 2x you would go up 2 over 1 but I don’t know about -7?? Maybe down
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there are two sizes of red and blue marbles in a box. Of the big marbles in the box, 45 are red and 3/4 are blue. The fraction o
nikklg [1K]
Big marbles = 45red 3/4 blue
Small marbles = 2/5 red    3/5 blue    24 more small blue mabrles than red marbles
What percentage of the marbles are big marbles

First of all lets working out the missing values: 
Big Marbles, 45 red, 3/4 blue. If 45 red is 1/4, then 135 (45*3) is 3/4.
Big Marbles, 45 red, 135 blue = 180 in total

For the small marbles, we do some logical thinking:
If red is 2/5, and blue is 3/5. And blue has 24 more than red.
That means 24 = 1/5
So in total there are 120 small marbles (24*5)
There are 180 big marbles 
We add these together, 120 + 180 = 300 marbles
180 / 300 = 0.6 = 60%
^ Divide the big marbles by the number of total marbles

60% of the marbles are big marbles

<u>Please vote my answer brainliest if I helped!</u>
3 0
3 years ago
Figure out this 16r^3t^2/-4rt
ElenaW [278]
You mean to simplify as this is an expression not an equation, as it has no equal sign...

Factor our 4 first

(4r^3t^2)/(-rt)

Now factor out -rt

-4r^2t
8 0
3 years ago
Read 2 more answers
What statement is true about angles 1 and 2?​
Kruka [31]

Answer:

they are adjacent angles

Step-by-step explanation:

5 0
3 years ago
It is known triangles abc is congruent to def . If AB=5 and BC=10, AC=8 and DF=2x-6 solve for x.
Pepsi [2]
So df = 8 so then 2x-6=8 which means that x is 7
5 0
3 years ago
Find the lateral and surface area of each cone
Sophie [7]

Answer:

\large\boxed{L.A.=153\pi\ mm^2}\\\boxed{S.A.234\pi\ mm^2}

Step-by-step explanation:

The formula of a lateral area of a cone:

L.A.=\pi rl

r - radius

l - slant height

The formula of a surface area of a cone:

S.A.=\pi r^2+\pi rl

We have r= 9mm and l = 17mm. Substitute:

L.A.=\pi(9)(17)=153\pi\ mm^2

S.A.=\pi(9^2)+153\pi=81\pi+153\pi=234\pi\ mm^2

7 0
2 years ago
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