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garik1379 [7]
3 years ago
13

Find the value of x and y

Mathematics
1 answer:
MrRissso [65]3 years ago
5 0
X = 180 - (105+25)
x = 180 - 130
x = 50
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Marty is taking piano lessons. She is going to practice every afternoon. The 1st week she practiced for 11 minutes each day. The
defon

Answer:

m=7w+4

Step-by-step explanation:

<u>Linear Modeling</u>

It consist is setting up a linear relationship between two variables, given some experimental data. Only 2 points are needed to set up the equation of a line, but if more than 2 points are used, then the result should use statistical approaches like linear regression to find the best-fit line.

For the question at hand, Marty practices his piano lessons 11 minutes the week #1. It provides the first point (1,11). He practices 25 minutes per day on the third week. It gives us another point (3,25). This is enough to find the equation of a line. The general formula for a line, having two points (m1,w1) (m2,w2) is

\displaystyle m-m_1=\frac{m_2-m_1}{w_2-w_1}(w-w_1)

Let's plug in our values

\displaystyle m-11=\frac{25-11}{3-1}(w-1)

Simplifying:

m-11=7w-7

\boxed{m=7w+4}

3 0
4 years ago
Find the least common multiple of 36,6 ,3
Lerok [7]

-- least common multiple of 36, 6, 3 = 36

- it is the smallest number divisible <u>by all three. </u>

4 0
3 years ago
Please help timed this time i actually added picture
mrs_skeptik [129]
As x increases by 1 the value of f(x) doubles so we need 2^x
When x = 0 the value of f(x) = 3
The correct answer is f(x) = 3(2^x). [the top option]
4 0
3 years ago
Barbara wants to rent a car for a trip to Pine Grove for a week. She phones two car rentalcompanies to get price quotes. Mr Cool
SOVA2 [1]

Answer:

Sensational Rentals

Step-by-step explanation:

Mr Cool's Rentals-

432 minus 100 = 332

332 * 0.11 = 36.52

36.52 + 36.52 = 73.04 (because she's coming back you need to double it)

73.04 + 99 = 172.04

The cost will be $172.04 if she goes with Mr. Cool's rentals.

Sensational Rentals-

432 minus 150 = 282

282 * 0.15 = 42.3

42.3 + 42.3 = 84.6

84.6 + 75 = 159.6

The cost will be $159.6 if she goes with Sensational Rentals.

Therefore, because 172.04>159.6 Sensational Rentals will have the better deal.

8 0
3 years ago
Anita is making a curtain to surround a table. She bought 3 1/4 yards of fabric. Her total cost was $13. What was the cost per y
Ratling [72]
3.25y=13. Isolate y by dividing both sides of the equation by 3.25. So 3.25y/3.25=13/3.25. Your answer is therefore 13/3.25, or 4
7 0
3 years ago
Read 2 more answers
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