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2 years ago

Solve the equation -18 = 1/4y

Mathematics

2 answers:

RSB [31]2 years ago

6 0

Answer:

-72

Step-by-step explanation:

-18 = 1/4y

1/4y = -18

y = -18 times 4

y = -72

Serjik [45]2 years ago

6 0

Answer:

y = -72

Set each factor to 0

Simplify both sides of the equation, and then, isolate the variable, which is y.

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Xavier can work no more than 40 hours in a week. He has already worked 24 hours this week. What is the maximum number of 8-hour

MrRissso [65]

Answer:

He can work a maximum of 2 8-hour days for the remainder of the week

Step-by-step explanation:

Firstly, from the question, we are made to know that the maximum work hours is 40 hours.

Now, we know that he has already worked 24 hours this week, the number of hours remains to work will be 40-24 = 16 hours

Now, given that his working hour is 8-hours per day, we want to know the number of days he has to work for the remainder of the week

Mathematically, that would be 16 hours divided by 8-hours days

That is 16/8 = 2

7 0

3 years ago

Read 2 more answers

5y + 3 = 8y − 5 + 2y

DIA [1.3K]

Answer:

$\fbox{y = 8/5 }$

Explanation:

[to solve for y, first use the properties of equality to simplify the equation]

5y + 3 = 8y − 5 + 2y

5y + 3 = (8y + 2y) – 5

[regroup the like terms of y together: commutative property of equality ; adding in a different order will still give you the same result]

5y + 3 = 10y – 5

[combine like terms]

5y + 3 = 10y – 5

$\: \: \: \: \: \: -3 \: \: \: \: \: \: \: \: \: \: \: -3$

[subtract 3 from both sides in order to eliminate the constant term on the left side: subtraction property of equality]

5y = 10y – 8

–10y –10y

[subtract 10 from both sides in order to eliminate the variable term: subtraction property of equality]

-5y = -8

÷(-5) ÷(-5)

[divide both sides by -5 to cancel out the coefficient of y: division property of equality]

y = 8/5

7 0

3 years ago

Read 2 more answers

Help me with ixl please

lapo4ka [179]

Answer:

$33.00

Step-by-step explanation:

You find out how much the sale price is by subtracting 25% of 40 from 40:

40 - [(.25)(40)] and that equals 30. So the sale price is $30. Now if the tax is 10% (.1 in decimal form), we find the total cost by adding .1(30) to 30:

30 + [(.1)(30)] which is $33

8 0

3 years ago

If rectangle ABCD was reflected over the y-axis, reflected over the x-

olga_2 [115]

Answer:

-4, 1

Step-by-step explanation:

5 0

3 years ago

A bag contains 7 red marbles, 3 blue marbles and 5 green marbles. If three marbles

worty [1.4K]

Answer:

3.7%

Step-by-step explanation:

We know that from this situation, the probability of drawing a single green marble is 1/3. However, to find the probability of drawing 3 green marbles, we will need to do:

$P= \frac{1}{3}* \frac{1}{3}*\frac{1}{3}$

We get a probability of:

$P= \frac{1}{27}$

This converts to a percentage of:

$\frac{1}{27}= 0.037 \\ 0.037*100= 3.7%$

We get a percentage of 3.7%

8 0

3 years ago