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Anettt [7]
4 years ago
15

15(2-x)=13(3-x) pls help

Mathematics
2 answers:
gizmo_the_mogwai [7]4 years ago
7 0

Answer:

x =  - 4.5 \\

Step-by-step explanation:

15(2 - x) = 13(3 - x) \\ 30 - 15x = 39 - 13x \\  - 15x + 13x =  - 30 + 39 \\  - 2x = 9 \\  \frac{ - 2x}{ - 2}  =  \frac{9}{ - 2}  \\ x =  - 4.5

hope this helps

brainliest appreciated

good luck! have a nice day!

schepotkina [342]4 years ago
6 0

Answer:

-4.5

Step-by-step explanation:

15(2-x)=13(3-x)

Expand parentheses:

30-15x=39-13x

Add 15x to both sides:

30=2x+39

Subtract 39 from both sides:

2x=-9

Divide both sides by 2:

x=-4.5

Hope this helps!

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Snezhnost [94]

Hello there! the answer is A, or There 11 players on the team.

Explanation:

It is A because if you add together all the players, you get 11. (1) 10 year old, (3) 11 year olds, (2) 13 year olds, (1) 14 year old, (4) 15 year olds (1 + 3 + 2 + 1 + 4 = 11)

It is not B because there are three 11 year olds and two thirteen year olds

It is not C because there are players who are 11, 13, 14 and 15.

It is not D because there are 3 players that are 11 and 4 players that are 15.

6 0
4 years ago
Read 2 more answers
A platinum metal bar measures 5.0 cm long, 4.0 wife, and 1.5 cm thick. It has a mass of 750.0 grams. What is the volume of the p
ioda
Just multiply:
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The formula of the volume is area of the base by the height.
3 0
4 years ago
The value of the expression 2x + x(100 – 15x) when x = 5 is<br> 119<br> 129<br> 135<br> 145
lisov135 [29]

Answer:

135

Step-by-step explanation:

2(5) + 5(100 - 15(5))\\10 + 500-375\\135

6 0
4 years ago
Please help me with this
vlabodo [156]

Ulterior exterior angles:

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3 years ago
Elimination Method. I need help with the middle one and perhaps the second one as well. There can't be any fractions! Thank you!
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