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Nitella [24]
3 years ago
15

Which three equations are equivalent to 1 + 3 (x - 2) equals 16​

Mathematics
1 answer:
liberstina [14]3 years ago
5 0

Answer:

4 (6 - 2)

1 + 3 (4)

4 (4)

Step-by-step explanation:

x = 4

16 / 4 = 4

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Write an equation in slope-intercept form for the line that passes through the given points and is (a) parallel to the given lin
murzikaleks [220]
Remark
This is costing you an awful lot of points, but it is a little hard to read. If I'm not interpreting it correctly, leave some sort of note below my answer.

Question One
In the first question you want a line that is parallel to x = 4 and goes through the point (-7,3). If I'm reading this correctly then the line you want is x = -7. You only need the x value of the given point. I'll put a graph there to show you what it looks like on a grid.  The graph is the left one for this question.

Question Two
Here I think you want the line going through (5,-1) and perpendicular to y = 4x - 7. I will make a graph for that one as well.

Begin with the slope
Two lines are perpendicular to each other if their slopes multiply to - 1
Given slope (m1) = 4
perpendicular slope = m2

Formula
m1 * m2 = - 1
4 * m2 = -1      Divide by 4
m2 = -1/4

So far what you have is
y = (-1/4)x + b

Now use the given point to solve for b
x = 5
y = - 1
b = ??

-1 = (-1/4)*5 + b
-1 = -5/4 + b  Add 5/4 to both sides
-1 + 5/4 + b   Make -1 into -4/4
b = -4/4 + 5/4
b = (-4 + 5)/4
b = 1/4

So the line that you want is
y = (-1/4) x + 1/4

Answers
One:  x = - 7
Two: y = (-1/4)x + 1/4

Note
The right graph is of y = 4x - 7 and y = (-1/4)x + 1/4

3 0
3 years ago
To raise funds, a school sells two kinds of raffle tickets, some for $6 and the rest for $1.50 . Sales for both amounted to $822
MaRussiya [10]
x-number\ of\ \$1.5\ tickets\\371-x-number\ of\ \$6\ tickets\\\\1.5x+6(371-x)=822\\1.5x+2226-6x=822\\1.5x-6x=822-2226\\-4.5x=-1404\ \ \ \ \ |:-4.5\\x=312\\\\There\ where\ 312\ tickets\ for\ 1.5\ sold
4 0
3 years ago
Read 2 more answers
I am doing a math project for Geometry. I am using Singapore Flyer as example for a circle. This is the information I know so fa
My name is Ann [436]

Answer:

Yea its correct! good job yea there are not any mistakes

Step-by-step explanation:

8 0
3 years ago
Everything I don’t understand
irina1246 [14]

Answer:

what don't you understand

8 0
3 years ago
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Given that €1=£0.72 how much is €410 in £ what is the £ to € exchange rate
Virty [35]

Answer:

As per the given statement:

€1 = £0.72

Find how much is €410 in £.

then;

€410 = 0.72 \times 410 = £295.2

Hence, £295.2 much is €410.

to find, the exchange rate of £ to €:

€1 = £0.72

Divide both sides by 0.72 we get;

£1 = €1.389

4 0
3 years ago
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