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lara31 [8.8K]
3 years ago
5

What's the value of y

Mathematics
1 answer:
yaroslaw [1]3 years ago
6 0

(3y +10) /4 = 2y

Multiply both sides by 4:

4(3y +10) = 4(2y)

12y +40 = 8y

Subtract 40 from each side:

12y = 8y -40

Subtract 8y from each side:

4y = -40

Divide both sides by 4:

y = -40 / 4

y = -10


The answer is A. -10


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The factoring method which can be considered for such a cubic tetranomial expression is; factor by grouping sum of cubes.

<h3>What factoring method can be considered for the polynomial?</h3>

It follows from the task content that the order of the Polynomial is 3 and the polynomial is a tetranomial as it contains 4 terms.

On this note, since 3x³ is not a perfect cube, it follows that the best factorisation method for such a polynomial is; factor by grouping sum of cubes.

Read more on factorisation;

brainly.com/question/25829061

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8 0
2 years ago
200 3. A technician charges $25 per hour plus $50 for a house call to repair home computers. Make a table and a graph to show th
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Recall that for a home visit, the technician charges $50 regardless on the time spent in the repair.

So, to find out the rate, we should calculate the part that depends on the spent time, and the add 50. So for example, we know that the technician spents 1 hour. So, we multiply 1 times 25 and then add 50. So, 25*1 + 50 = 75, which is the rate for a 1-hour repair.

So, in general, if we know that the number of hours is x, we multiply x times 25 and then add 50. Then a table would like this:

x 25*x 25*x +50

1 25 75

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4 100 150

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6 0
1 year ago
Solve the equation -5x + 3 = 2x - 1
frozen [14]

Step-by-step explanation:

Given

- 5x + 3 = 2x - 1

or, 2x + 5x = 3 + 1

or, 6x = 4

or, x = 4/ 6

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Hope it will help :)❤

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3 years ago
Read 2 more answers
PLEASE HELP! I will mark as brainliest if you help me. Solve for x. −ax + 2b &gt; 8
anyanavicka [17]

Answer:

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Step-by-step explanation:

For this problem, we simply will solve the inequality for x.

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Note, the comparison is flipped since a negative multiplicand was used to isolate x.

Cheers.

4 0
3 years ago
A study was completed in Florida. In southern Florida, the study involved 3,000 patients; 54% of them experienced flulike sympto
polet [3.4K]

Answer:

A (52,2%, 55,8%)

Step-by-step explanation:

To get the confidence interval, we have to add the margin of error to the point estimator.

The middle of the interval is 54%, and the ME is 1.8%. Don't forget that this means ±1.8%!

54 - 1.8 = 52.2%

54 + 1.8 = 55.8%

So our confidence interval is (52,2%, 55,8%) and the answer is A.

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3 years ago
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