All categories

3 years ago

How to solve for x in the equation 3x=28-y?

Mathematics

1 answer:

Veronika [31]3 years ago

6 0

Answer:

x=(28-y)/3

Step-by-step explanation:

Just divide both sides by 3.

You might be interested in

What is the inverse of f(x) = 2x+ 2?

HACTEHA [7]

Your inverse will be x = -1 .

4 0

4 years ago

Which of the following sets of values correctly completes the t-chart for the equation y = 2x2 - 1.

natali 33 [55]

Answer:

The sets of values that correctly completes the t-chart are:

7, -1, 7

Hence, option B is true.

Step-by-step explanation:

Given the equation

y = 2x² - 1

FOR x = -2

substitute x = -2 in the equation

y = 2x² - 1

y = 2(-2)² - 1

y = 8 - 1

y = 7

FOR x = 0

substitute x = 0 in the equation

y = 2x² - 1

y = 2(0)² - 1

y = -1

FOR x = 2

substitute x = 2 in the equation

y = 2x² - 1

y = 2(2)² - 1

y = 8 - 1

y = 7

Thus, the t-chart becomes:

x y

-2 7

0 -1

2 7

Thus, the sets of values that correctly completes the t-chart are:

7, -1, 7

Hence, option B is true.

7 0

3 years ago

A varsity boy's basketball team has ratio of seniors to juniors that is 7:4. If the team is made up of only juniors and seniors,

DENIUS [597]

Answer:

The ratio of seniors to the total team members is 7: 11

Step-by-step explanation:

Let us solve the question

∵ A varsity boy's basketball team has a ratio of seniors to juniors that is 7: 4

∴ seniors: juniors = 7: 4

→ That means seniors have 7 parts and juniors has 4 parts

∴ The seniors' members = 7 parts

∴ The juniors' members = 4 parts

→ Add them to find the total parts of the team

∴ The team's members = 7 + 4 = 11 parts

→ To find the ratio of the seniors' members to the total team's member

divide their parts

∵ The seniors ÷ The total = $\frac{7}{11}$

∵ The seniors' member : The team's members = 7: 11

∴ The ratio of seniors to the total team members is 7: 11

4 0

3 years ago

A recent article in a college newspaper stated that college students get an average of 7 hrs of sleep each night. A student who

vazorg [7]

Solution -

A student who was skeptical about this value decided to conduct a survey by randomly sampling 36 students. On average, the sampled students slept 6.6 hours per night.

The sample mean is the average of the 36 sampled students, which is 6.6 hours. So 6.6 represents the sample mean.

College newspaper stated that college students get an average of 7 hrs of sleep each night.

The claimed population mean is the stated average from the newspaper article, which is 7 hrs. So 7 represents the claimed population mean.

6 0

3 years ago

A group of 5 friends go to the movies. A bag of popcorn costs $2.99. How much will it cost to get one bag of popcorn for each fr

hammer [34]

Answer:

you do 2.99* 5 to get your answer, which is 14.95

so $14.95 total

hope i helped!

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers