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nikdorinn [45]
3 years ago
7

What numbers match the equations

Mathematics
1 answer:
satela [25.4K]3 years ago
6 0
Y = 2/3x + 5....slope here is 2/3...so the line is increasing...going up....the 5 in the equation is ur y int, where the line crosses the y axis....so this equation will be line 4

y = x - 3....slope is 1....increasing....y int is -3....this is line 1

y = -3/4x + 3....slope is -3/4.....this one is decreasing...going down...the y int is 3....so this is line 2

y = -1/2x - 4....slope is -1/2...so this is decreasing...y int is -4...so this one is going to be line 3
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Suppose j varies jointly with g and v, and j=1 when g=6 and v=3.
Alex_Xolod [135]
"Joint variation<span>" means "directly, but with two or more variables". Thus, we write as follows:

j </span>α gv
<span>
We insert proportionality constant k, to change it to equality.

j = kgv

We solve k,

1 = k (4)(3)
k =1/12

j = gv/12
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3 years ago
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1. Which description best describes the solution to the following system of equations?
Alisiya [41]
1. The best answer is A since a solution is where 2 lines intersect. Whether or not they intersect the x or y axis is completely irrelevant (so is whether they intersect the origin).

2. y=-x+5
-x+5=1/2x+2
-x+3=1/2x
3=3/2x
2=x

y=-(2)+5
y=3

Answer: (2,3)

3. It seems like the lines are completely on top of each other (coinciding) so there are infinitely many solutions.
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3 years ago
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A cone with a radius 4m and a height of 12 m
NikAS [45]

Answer: V=200.96m^3

Step-by-step explanation:

I believe you're trying to find its volume.

Formula: V=\frac{1}{3}\pi r^2h

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8 0
3 years ago
In 1993 eggs cost $0.87 a dozen. In 2003 it cost $1.56 a dozen. How much did the eggs appreciate (percent of increase)?
rusak2 [61]

Answer:

190%

Step-by-step explanation:

$1.56 is close to nearly 2x the value of $0.87

You can start by multiplying $0.87 by 2 to get $1.74

Now put $1.56 / $1.74

This gets you 0.89655172

By rounding this, you can get to 0.90

Move the decimal places two spots over to get a percentage = 90%

Since the eggs didn't decrease in value, you can add the 100% from the beginning of the problem.

100+90=190%

4 0
3 years ago
Sofia purchased groceries worth $36 for a party. A gallon of fruit punch costs $2.25, a gallon of ice cream costs $4.50, and a g
m_a_m_a [10]

Answer:

3 gallons at 3 dollars a piece

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2.25 •6=13.50

4.50•3=13.50

13.50+13.50= 27.00

36-27=9

9÷3=3

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2 years ago
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