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ra1l [238]
3 years ago
11

How do i graph x+3y=-12 and 5x-3y=-6 on the same graph with a solution of x=-3 and y=-3

Mathematics
1 answer:
77julia77 [94]3 years ago
6 0

(-4.5,1.5),(0,-2),(-1.2,0)
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I need Help fast asap thank you
Jobisdone [24]

Answer:

1.25

Step-by-step explanation:

Because they are equal triangles, all of their sides are equal

so, lets take one side of each triangle (4, 5)

the law:

the scale factor = the larger side ÷ the smaller side

x = 5 ÷ 4

x = 1.25

For checking:

the larger side = the smaller side × the scale factor

Y = 4 × 1.25

Y = 5

8 0
2 years ago
The perimeter of a rectangle is 50 inches. The length of the rectangle is 10 inches. Which
VMariaS [17]

Answer:15

Step-by-step explanation:

Solve for w in the equation 2w + 10 =50.

8 0
2 years ago
This is the longest side of a right triangle. It is also the side directly across from the 90-degree angle of a right triangle.
muminat

Answer:

hypotenuse

Step-by-step explanation:

the other sides are known as legs

7 0
3 years ago
If a sweater costs $40.00 before the sale and $35.00 after the sale, what was the percent of decrease?
babunello [35]

Answer:

%12.5

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
wanting to cut down his television-watching time slowly, Vince decides to watch 30 fewer minutes of television each week after t
Effectus [21]

Answer:

f(n) = - 0.5n + 6

Step-by-step explanation:

Because Vince cuts down his television watching at a steady pace, his situation models a linear function. As such, we can use slope-intercept form to write and predict his hours watching tv in n weeks.

Slope-intercept form is y=mx+b. In this case, we are choosing to use f(n) instead of y to show the number of hours he is watching tv. We are also choosing to use n weeks instead of x. So we have the form f(n)=mn+b.

We know that Vince starts out at watching 6 hours a week. This is our initial value known as the y-intercept and represented by b. As each week passes, he will decrease from the previous week by 30 minutes or -0.5 hours since 30 out of 60 minutes is 0.5. And since he is decreasing it should be a negative rate of -0.5 and is represented by m.

We substitute b=6 and m=0.5 into our form to get f(n)=-0.5n+6. Let's test week 1. After 1 week he should be down from 6 hours to 5.5 hours or 5 hours and 30 minutes. Let's substitute n=1.

f(n)=-0.5(1)+6=-0.5+6=5.5

We can substitute for any n week and find the amount.


7 0
2 years ago
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