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3 years ago

I need help to solve for y -4x + y = -2

Mathematics

1 answer:

inysia [295]3 years ago

6 0

I think the answer is y= 4x-2

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Please give me the correct answer.

nydimaria [60]

Answer:

The third one which is the one on the bottom to the right under 34 the ont he bottom

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2 years ago

Simplify this exponential function<br> b^ 8(2b)^5

xz_007 [3.2K]

Step-by-step explanation:

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2 years ago

Evaluate [3(5 + 6) + 2] ÷ 7

larisa86 [58]

The answer to the problem is 5

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3 years ago

Read 2 more answers

Dina and Masha start cycling on a 20 km bike path at the same time. When Dina reaches the end of the path, Masha still has 4 km

sammy [17]

Answer:

0.5 hour

Step-by-step explanation:

Given

Speed of Dina = 10 km/h

Distance = 20 km

So the time Dina taken to complete the track is:

$Speed=\frac{distance}{time}\\10=\frac{20}{time}\\time=\frac{20}{10}\\ time=2\ hours$

The time taken by Dina is 2 hours. As masha started with dina but she was 4 km of the path left to cycle,

her distance covered in 2 hours was:

$Distance\ covered\ by\ Masha\ in\ 2\ hours=20-4\\=16 km$

So we know the time and distance:

Now,

$Speed\ of\ Masha=\frac{distance}{time}\\ =\frac{16}{2}\\ =8\ kilometer\ per\ hour$

We have to calculate the time that will be needed by MAsha to complete the track:

As we know the speed and remaining distance

$Speed=\frac{distance}{time}\\8=\frac{4}{time}\\ time=\frac{4}{8}\\time=0.5\ hours$

Masha needs 0.5 hour to complete the track ..

7 0

3 years ago

Read 2 more answers

A phone is 35 percent off which is now worth 78 pounds what was the original price

Black_prince [1.1K]

Answer:

120 pounds

Step-by-step explanation:

65% of y= 78 pounds

$\frac{65}{100}$ × y = 78 pounds

65y = 78 × 100=7800

y= 7800/65= 120 pounds

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3 years ago