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3 years ago

What is the slope of y = -x + 7?

Mathematics

1 answer:

Eddi Din [679]3 years ago

5 0

Answer:

-1

Step-by-step explanation:

y = mx + b

m = slope

b = y-intercept

y = -x + 7

m = -1

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antiseptic1488 [7]

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1 year ago

Explain how to graph the inequality 8>Y

Colt1911 [192]

Answer:

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6 0

3 years ago

How do change 0.9 in fraction

Fantom [35]

0.9 as a fraction is: $\frac{9}{10}$

What place is the '9' in? It's in the tenth place.
0.9 can be said as $nine \ tenths$

Nine $(9)$ tenths $(10)$ = $\frac{9}{10}$

3 0

3 years ago

Read 2 more answers

Find the slope of the points (2, 13) and (8, 1)

Pie

-2

y2-y1/x2-x1
take the y coordinate of the second pair of coordinates and subtract it by the y coordinate of the first pair, then take the x coordinate from the second pair of coordinates and subtract it from the x coordinate from the first pair. then put your answer from the y coordinate over the answer from the x coordinates. 1 - 13 / 8 - 2, then you get -12/6, which simplifies to 2.

Hope this helps :)

5 0

3 years ago

There are two sizes of red and blue marbles in a box. If the big marbles in the box, 45 are red and 3/4 are blue. The fraction o

Nat2105 [25]

Let
x------> amount of <span> big marbles in the box
y------> </span>amount of  small marbles in the box
R----> amount of  small marbles that are red in the box
B----> amount of  small marbles that are blue in the box

we know that
x=45+(3/4)*x----> x-(3/4)*x=45----> x/4=45-----> x=180

R+B=y-----> equation 1
R=(2/5)*y---> equation 2
B=(3/5)*y---> equation 3
B=R+24----> equation 4

substitute equation 2 in equation 1
[(2/5)*y]+B=y----> equation 5

substitute equation 2 in equation 4
B=[(2/5)*y]+24----> equation 6

resolve the system
[(2/5)*y]+B=y---> multiply by 5----> 2y+5B=5y----> 3y=5B
B=[(2/5)*y]+24----> multiply by 5----> 5B=2y+120

using a graph tool
see the attached figure

the solution is
B=72
y=120
R=y-B----> R=48

total marbies=x+y-----> 180+120-----> 300
tota; big marbies=180
<span>percent of the marbles are big marbles
</span>if 100%-----------> 300
X----------------> 180
x=180*100/300-----> x=60%

the answer is
60%

8 0

3 years ago