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Ivan
3 years ago
11

carly tutors stufents in math on the weekends and offers both thirty minute and sixtyminute sessions she earns $15for each thirt

y minute session and $25 for each sixty minute session. if she earned $230 this past weekend and has x thirty minute sessions and x-2 sixty kinute sessions what is the calue of x
Mathematics
1 answer:
Ronch [10]3 years ago
6 0

Answer:

X=7

Step-by-step explanation:

7*15=105 7-2=5 5*25=125 125+105=230

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3 years ago
Solve by Elimination: <br> x + 6y = 28<br> 2x - 3y = -19
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Answer:

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x=28-6y

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(substitute the value of x)

2(28-6y)-3y=-19

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3 0
2 years ago
What is the value of q?
andre [41]

Answer: here

Step-by-step explanation:riangles QST and RST are similar.  Therefore, the following is true:

q       s

--- = ----   This results in 10q=rs.

r      10

Also, since RST is a right triangle, 4^2 + s^2 = q^2.

Since QST is also a right triangle, s^2 + 10^2 = r^2.  

           4      s

Also:  ---- = -----    which leads to s^2 = 40

           s      10

Because of this, 4^2 + s^2 = q^2 becomes 16 + 40 = 56 = q^2

Then q = sqrt(56) = sqrt(4)*sqrt(14) = 2*sqrt(14) (answer)

hope it helps

6 0
3 years ago
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