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Dvinal [7]
2 years ago
7

I need help please!!! thank you so much to the person who is going to help me.

Mathematics
2 answers:
zaharov [31]2 years ago
8 0

Answer:

22x - 14

Step-by-step explanation:

pretty sure its like this..

3(4x-3)+5(2x-1)

= 3×4x + 3×(-3) + 5×2x + 5×(-1)

= 12x + (-9) + 10x + (-5)

and according to the rules of multiplying negative by positive...

= 12x - 9 + 10x - 5

combine like terms using the symbols on its left

= 12x + 10x - 9 - 5

= 22x - 14

alexgriva [62]2 years ago
3 0
22- 14x is the answer you’re welcome there
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4 0
2 years ago
If Y varies directly with X solve the following :
tresset_1 [31]

Answer:

B) When Y = 90

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Hope this helps!

4 0
3 years ago
Ted needs an average of at least 70 on his three history test he has scored already 85 and 60 on two test what is the minimum gr
PilotLPTM [1.2K]
So average=(total of scores)/(number of tests)
needs at least average of 70
at least is represented as greater than or equal to or the sign (<u>></u>)
70<u>></u>(total)/(number oftests)

since we have 3 tests, we have to have 3 scores so
70<u>></u>(x+y+z)/3
he scored 85 and 60
70<u>></u>(x+85+60)/3 (doesn't matter which to subsitute)
70<u>></u>(x+145)/3
multiply obht sides by 3
210<u>></u>x+145
subtract 145 from both sides
65<u>></u>x
he needs to get at leas 65 on his third test





4 0
3 years ago
I’m confused on this question. Can anybody help?
DENIUS [597]

Answer:

I believe the answer is 90

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Which is a zero of the function defined by
Katen [24]
B. 

You can get this by using the quadratic equation, which I listed below. 

\frac{-b +/-  \sqrt{ b^{2} -4ac} }{2a}

With a = 2, b = 1, c = -45
6 0
2 years ago
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