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tresset_1 [31]
3 years ago
13

Francis teaches the piano. He charges each student an enrollment fee of $100 plus $15 per hour of piano lessons. The average cos

t of lessons for a student per hour is $25.
If h represents the number of hours a student spends in lessons, which equation can be used to find the value of h?
Mathematics
1 answer:
Kryger [21]3 years ago
7 0

Answer:

y=15x+100

Step-by-step explanation:

increases by 15, 100 is starting free

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Help plz,BIG POINTS,also plz show me the steps as best as possible
Sidana [21]

Answer:

The correct answer is option 3.

Step-by-step explanation:

Given : ΔPQR, QM is altitude of the triangle

PM  = 8

MR = 18

To find = QM

Solution :

PR = 8 + 18  = 26

Let, PQ = x  , QR = y, QM = z

Applying Pythagoras Theorem in ΔPQR

PQ^2+QR^2=PR^2

x^2+y^2=(26)^2..[1]

Applying Pythagoras Theorem in ΔPQM

PM^2+QM^2=PQ^2

8^2+z^2=(x)^2..[2]

Applying Pythagoras Theorem in ΔQMR

MR^2+QM^2=QR^2

18^2+z^2=(y)^2..[3]

Putting values of x^2 and y^2 from [2] and [3 in [1].

8^2+z^2+18^2+z^2=(26)^2

2z^2=(26)^2-(8)^2-(18)^2

2z^2=288

z^2=144

z = ±12

z = 12 = QM ( ignoring negative value)

The length of QM is 12.

6 0
3 years ago
Help please thanks :))))))))))))))))
shtirl [24]
The answer is 1. Yeah
5 0
3 years ago
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When two lines intersect to form two angles, what conjecture can you make about the pairs of angles that are next to each other?
gayaneshka [121]
The pair of angles are adjacent angles and supplementary and their measure =180
7 0
3 years ago
Find the factors of<br>y2 + 2y - 35​
baherus [9]

Answer:

(y-5)(y+7)

Step-by-step explanation:

3 0
3 years ago
Solve the given inequality 11x-20&lt;_13​
RUDIKE [14]

Answer:

x ≤ 3

Step-by-step explanation:

11

x

−

20

≤

13

Step 1: Add 20 to both sides.

11

x

−

20

+

20

≤

13

+

20

11

x

≤

33

Step 2: Divide both sides by 11.

11

x

11

≤

33

11

3 0
3 years ago
Read 2 more answers
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