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Tamiku [17]
3 years ago
7

What are all fractions equivalent to 0.7

Mathematics
1 answer:
timofeeve [1]3 years ago
4 0

i got 15/20

7/10 as my answers

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Which of the following expressions is incorrect?
iragen [17]
The third expression is wrong
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3 years ago
Need step by step detailed answer
kolezko [41]

Answer:

y = -4x - 4

Step-by-step explanation:

If we have two lines in slope intercept form as

y = m_1x + c_1 \text{ and}\\y = m_2x + c_2\\

then the product of the slopes m_1m_2 = -1

In other words, m_2 = -\frac{1}{m_1}

We have the first line as

y = \frac{1}{4}x + 5\\\\

The slope of this line is \frac{1}{4}

The slope of a perpendicular line will be the negative of the reciprocal of this line

Reciprocal of 1/4 is 4

So slope of perpendicular line is -4 which implies

y = -4x + c

We have to determine c

Since the line passes through (-3, 8), plug in these values for x and y in the equation and solve for c

8 = (-4)(-3) + c

8 = 12 + c

c = -4

So the equation of the perpendicular line is y = -4x - 4 (Answer)

It is always a good idea to plot these graphs and see if they fit the data provided

The attached plot shows the two graphs and you can see they are perpendicular to each other and the perpendicular line(the answer) passes through point (-3,8)

4 0
1 year ago
Solve the equation.<br><br> 5x + 8 − 3x = −10
inna [77]

Answer:x=-9

Step-by-step explanation:

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$20 haircut ; 10% tip
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Answer:

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Step-by-step explanation:

10% of $20= 2

20+2=$22

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You have a $7,000 credit card debt, and you plan to pay it off through monthly payments of $175. If you are being charged 15% in
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