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san4es73 [151]
2 years ago
9

Peter has decided to save $30 each week to buy a new stereo system.Write a direct variation equation for the amount of money, m,

that Peter has saved in, w, weeks.
Mathematics
1 answer:
Lena [83]2 years ago
3 0
M=w-30 is the answer if you want to find how much you want to find each week.
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guapka [62]

Answer:

1) $53.50

2)$85.10

3) $57.60

4)1.5

4) $2511.25

Step-by-step explanation:

for 1,2,3,5 take the original amount and the percentages to set up something like this

$50X1.07

which gives you the entire answer in a simple step

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3 years ago
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Write the equation of the line that
zlopas [31]

Answer:

y=-1/2x+2

Step-by-step explanation:

First, the slope of perpendicular line have negative reciprocal coefficients. In this case the coefficient is 2, The reciprocal of 2 is 1/2 and the negative of 1/2 is -1/2. So x will have a coefficient of -1/2.

Second, find the equation with a slope of -1/2 that passes through (-2,3). There are a few ways to do this. I like to plug the given x value into the expression -1/2x, so -1/2(-2) which equals positive 1 and for the line to pass through the point (-2,3) you need to add 2. So: y=-1/2x+2

8 0
1 year ago
Which expression is equivalent to x−2y ?
Tresset [83]

Answer:

-2y+x

Step-by-step explanation:

x-2y

-2y+x

3 0
3 years ago
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Point (k, -3) lies on the line whose equation is x-2y=-2. What is the value of k?
natita [175]

Answer:

Substitute, <em><u>y = -3</u></em> and <em><u>x = k</u></em> on the equation.

=> k - 2×(-3) = -2

=> k = -2 + (-6)

=> k = - 8

=================

<h2>HOPE U UNDERSTOOD</h2><h3>MARK AS BRAINLIEST ONE</h3>

Any Doubts? Please COMMENT

7 0
2 years ago
In a tutoring session, 2/3 of an hour was spent reviewing math problems. Adelina attended 3/4 of the tutoring session. How much
fgiga [73]

Answer:

Time spend by Adelina at the tutoring session is 30 minutes.

Step-by-step explanation:

Given : In a tutoring session, \frac{2}{3} of an hour was spent reviewing math problems and Adelina attended \frac{3}{4} of the tutoring session.

We have to find the time Adelina spend at the tutoring session.

We know, 1 hour = 60 minutes.

Total time taken in tutoring session = \frac{2}{3}\times 60=40 minutes.

also, Adelina attended \frac{3}{4} of the tutoring session that is \frac{3}{4} of 40 minutes.

that is \frac{3}{4}\times 40=30minutes.

Thus, time spend by Adelina at the tutoring session is 30 minutes.


 

4 0
3 years ago
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