Solve the equation for y. 4.2x-1.4y=2.1

Mathematics

1 answer:

mr Goodwill [35]4 years ago

8 0

Subtract 2.1 from both sides:

$4.2x-1.4y-2.1=0$

Add 1.4y to both sides:

$4.2x-2.1=1.4y$

Of course, we can rewrite this as

$1.4y=4.2x-2.1$

Divide both sides by 1.4

$y = \dfrac{4.2}{1.4}x - \dfrac{2.1}{1.4} = 3x - 1.5$

You might be interested in

Sharon runs a day care center. Of the last 10 children to enroll at the day care center, 4 of them have been preschoolers. What

JulijaS [17]

Answer:

The experimental probability that the next child to enroll will be a preschooler is 40%

P(E) = 40%

Step-by-step explanation:

What is Experimental Probability?

Experimental probability is basically the ratio of the number of outcomes occurred to the total number of trials in an actual experiment.

In this problem we are given that out of the last 10 children to enroll at the day care center, there are 4 children who belong to the category of preschoolers.

We are asked to find the experimental probability that the next child to enroll will be a preschooler.

The required experimental probability is given by

$P(E) = \frac{\text{number \:of \:desired \:outcomes}}{\text{total \:number \:of \:outcomes}}$

Where number of desired outcomes are 4 and total number of outcomes are 10

So the probability is

$P(E) = \frac{4}{10} \\\\P(E) = 0.40\\\\P(E) = 40\% \\\\$

Therefore, the experimental probability that the next child to enroll will be a preschooler is 40%

3 0

3 years ago

How do you divide 10÷14

34kurt

Answer:

5/7 or 0.71428572

5 0

3 years ago

krek1111 [17]

If BC and XY are similar and BC=24 with a ratio of 3:2, then divide 24 by 3 so,

24/3 = 8

8 is the stem unit meaning

3•8= 24

then 2•8= 16

The answer is 16.

3 0

3 years ago

Kyle has a storage box that is 2 ft. Long, 3 ft. High, and has a volume of 12 ft. 3 12 ft.3. Myla has a storage box that is 4 ft

Alex17521 [72]

Answer: The widths of Kyle and Myla's boxes is the same as 2 ft.

Step-by-step explanation:

Formula : Volume of cuboidal box = length x width x height

$width=\dfrac{Volume}{length\times height}$