MATHEMATICS
HIGH SCHOOL

Cooked dinner 315 289

Did not cook dinner 156 489

What is the probability that one of the customers chosen from this survey was a male and cooked dinner?

0.25

0.37

0.52

0.67

Answer: Total number of persons that took this survey is 315+289+156+489 = 1249

To calculate required probability we need to divide number of males that cooked diner with the total number of persons in the survey.

315/1249 = 0.2522

If we round this to 2 decimals the answer is first option: 0.25

To calculate required probability we need to divide number of males that cooked diner with the total number of persons in the survey.

315/1249 = 0.2522

If we round this to 2 decimals the answer is first option: 0.25

Answer:

Answer:

0.25

Step-by-step explanation:

add all the possibilities up and divide them by (male that cooked dinner)

HIGH SCHOOL

A standard shower head in Marty's house dispenses 7 gallons of water per minute. Marty changed this shower head to an energy-saving one. The equation shows the amount of water dispensed, y, as a function of the number of minutes, x, for the new shower head. y = 3x

How much water does Marty save each day with the change in shower heads if he uses the shower for 8 minutes each day?

A. 4 gallons

B . 12 gallons

C . 32 gallons

D . 53 gallons

The 32 gallons of water Marty saves each day with the change in shower heads if he uses the shower for 8 minutes each day option (C) is correct.

What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

A standard shower head in Marty's house dispenses 7 gallons of water per minute.

Marty changed this shower head to an energy-saving one.

The equation shows the amount of water dispensed, y, as a function of the number of minutes, x, for the new shower head:

y = 3x

Plug x = 8 minutes

y = 3(8)

y = 24

Now,

= 56 - 24

= 32

Thus, the 32 gallons of water Marty saves each day with the change in shower heads if he uses the shower for 8 minutes each day option (C) is correct.

Learn more about the linear equation here:

brainly.com/question/11897796

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The standard shower head, if used for 8 minutes a day, will use up 56 gallons by the end of the day. The energy saving one will only use up 24 gallons by the end of the day if it is used for eight minutes. Take 24 and subtract it from 56. The difference of 24 and 56 is 32 (56-24=32). So the answer is C, 32 gallons.

COLLEGE

when renting a car two options listed below are given.you need a car for 3 days how many miles must you travel in order for option 2 to be the better option.option1 daily fee 50$ cost per mile 0.15, option2 daily fee 65$ unlimited miles

Option 1 = 50 $ + 0.15 x

option 2 = 65 $

65 $ < 50 $ + 0.15 x

- 0.15 x < 50 - 65

- .015 x < - 15

x > 100

option 2 = 65 $

65 $ < 50 $ + 0.15 x

- 0.15 x < 50 - 65

- .015 x < - 15

x > 100

HIGH SCHOOL

If a fair number cube with sides numbered from 1 to 6 is tossed 600 times, how many times should one expect the cube to land on a number that is less than 5?

You have a 1.6 chance if i am wrong i am sorry

HIGH SCHOOL

A housepainter mixed 5 gal of blue paint with every 9 gal yellow paint in order to make a green paint. Which ratio of gallons of blue paint to gallons of yellow paint will make the same shade of green

Answer: the ratio of gallons of blue paint to gallons of yellow paint that will make the same shade of green is 5/9

Step-by-step explanation:

The housepainter mixed 5 gallons of blue paint with every 9 gallons of yellow paint in order to make a green paint.

To determine the ratio of gallons of blue paint to gallons of yellow paint that will make the same shade of green, we will divide the gallons on blue paint required by the gallons of yellow paint required. It becomes

The ratio is 5/9 = 5:9

It means that for every 5 gallons of blue paint, 9 gallons of of yellow paint is required

Answer:

30.54

Step-by-step explanation:

HIGH SCHOOL

Mary and Jolene are both growing tomatoes in their backyards to sell. Jolene had 3 times as many as Mary, but birds had eaten 6 before she picked them all. For the season they have a total of 54 tomatoes. How many tomatoes did Mary grow?

Jolene has 41 mary has 13

Answer:15 tomatoes

Step-by-step explanation:

MIDDLE SCHOOL

I need help proving each of the following numbers are rationals 87.125

-30

-8.3

58.25

121

4.5

3 7/10

Well, if a number is rational it can be written as a fraction and a decimal. For each of the examples above, you can rewrite each example as a fraction/decimal

For the first one, it equals 87 1/8

For the second one, it is already in fraction/decimal form

For the third one, you can rewrite this as -8 3/10

For the fourth one, you can rewrite this as 58 1/4

For the fifth one, it is already in fraction/decimal form

For the sixth one, you can rewrite this as 4 1/2

For the seventh one, you can rewrite this as 3.7

MIDDLE SCHOOL

What is a mixed number greater than one

Answer:

5/4 is a mixed number greater than one.

Step-by-step explanation:

It is greater than one when the numerator is greater than the deoninator

2 is the mixed number

MIDDLE SCHOOL

Mark earns $300 per month plus an additional 2% on all of his sales. Last month he sold $59,000. What was Mark’s income for the month?

Answer:

59,000 * .02= $1,180 commission plus $300 = $1480

MIDDLE SCHOOL

331.429641 rounds decimal to nearest thousandth

Answer:

331.430

i used a number calculator

Answer:

331.430

Step-by-step explanation:

331.429641

331.42964

331.4296

331.430 (6 is greater than 5 so it rounds the 9 to a 10.)