3 years ago

If m<1 = (11x +2) and m<7 = (8x + 7) , find the value of 'x'

Mathematics

1 answer:

DanielleElmas [232]3 years ago

8 0

Wait ill come right back at u let me solve

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Serggg [28]

this question is unambiguous.

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1 year ago

Lydia drives from city a to city b to transport goods. her return speed is 3 times her departure speed and she takes 40 minutes

gizmo_the_mogwai [7]

Answer:

1 hour

Step-by-step explanation:

Hello, let's say that her departure trip takes t in minutes, as her return speed is 3 times her departure speed, she took t/3 for the return and we know that this 40 minutes less, so we can write.

t/3=t-40

We can multiply by 3

t = 3t -40*3 = 3t - 120

This is equivalent to

3t -120 = t

We subtract t

2t-120 = 0

2t = 120

We divide by 2

t = 120/2 = 60

So this is 60 minutes = 1 hour.

Thank you.

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2 years ago

Factor X-7X -5x + 35 by grouping. What is the resulting expression?

Yuliya22 [10]

The answer is c). (x-5)(x-7)

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3 years ago

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marishachu [46]

Answer:

Step-by-step explanation:

$y=\frac{-3}{2}x-4$

Coefficient of x is -3/2 and so multiply the whole equation by 2

$2*y=2*\frac{-3}{2}x-2*4\\\\2y=-3x-8$

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3 years ago

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Step-by-step explanation:

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