help please I also need help with 4 more!

Answer:

It takes them 1.875 hours.

Step-by-step explanation:

Here, the job is cleaning the house.

Mom does 1 job in 3 hours.

In 1 hour, mom does 1/3 of the job.

Dad does 1 job in 5 hours.

In 1 hour, dad does 1/5 of the job.

Mom and dad working together do the job in x hours.

In 1 hour, mom and dad together do 1/x of the job.

1/3 + 1/5 = 1/x

5/15 + 3/15 = 1/x

8/15 = 1/x

8x = 15

x = 15/8 = 1.875

Answer: It takes them 1.875 hours.

your welcome

Answer: 18 pi

Step-by-step explanation:

Circumference = 2 pi r

Radius (r) is 9 mi

So just multiple 2 x 9 to get 18 and keep the pi.

Answer:

12/40

top is number of times it landed and bottom is total trys

Answer:

160

Step-by-step explanation:

I think that this is the answer. please let me know if I am wrong.

Answer: i think 160 but not completely sure

Step-by-step explanation:

Answer:

C) 162

Step-by-step explanation:

Use PEMDAS (Parentheses, Exponents, Multiply/Divide{Left to Right}, Add/Subtract{Left to Right})

1. Parentheses

[tex](3^4)=3*3*3*3=81[/tex]

2. Exponents

None

3. Multiply/Divide{Left to Right}

[tex]2*81=162[/tex]

4. Final Answer

[tex]2(3^4)=162[/tex]

The answer is 314.28 cm² (approx.).

Answer:

Question A is satistical

Step-by-step explanation:

a satistical question is a question that you can answer by collecting data

sence you will need the temperatures for December for each 10 years that would be data unlike question B.

Question B: you will need to collect the warmest temperature in December from the past 10 years.

Answer:

16 16/25

Step-by-step explanation:

Area of Rectangle = Length * Width

Answer:j answer is D or 16 16/25

Step-by-step explanation:

Formal is length times with

L times W
If you do that formal you will get the correct answer

Bye

Answer: D (0.05, 0.0516, 16%, 5/16, 5.16)

Step-by-step explanation: First you gotta know what 16% and 5/16 are in decimals.

16/100=  0.16

5/16 = 0.3125

It becomes easy now and from least to greatest is D

Answer: D 0.05, 0.0516, 5/16, 5.16

Answer:

A. 29

B. 22

C. 36

Step-by-step explanation:

To find the median, you have to put the numbers in order from least to greatest which would be 18, 19, 22, 28, 28, 30, 32, 36, 37, 42. Then you find the number in the middle, and there are 10 numbers. So, you split them in half and 18, 19, 22, 28, 28 would be on one half, and 30, 32, 36, 37, 42 would be on the second half. The middle of 28 and 30 is 29, so that is your median.

To find the lower quartile, you have to divide the numbers into two sides with the lowest numbers on one side and the highest numbers on the other. Since there are 10 numbers, there will be 5 on each side. On the lowest number side there will be 18, 19, 22, 28, 28. To find the lower quartile, you find the middle number of the 5 numbers. 22 is in the middle, so that is the lower quartile.

To find the upper quartile, you have to take the highest numbers which are 30, 32, 36, 37, 42. Then you find the middle number, just like finding the lower quartile. The number in the middle is 36, so that is the upper quartile.

Answer: 57

Step-by-step explanation: U Add All Them Up And Divide Bye The Numbers There Are Which In This Case Was 8!

Answer:

57

Step-by-step explanation:

The mean is the same as the average value of a data set and is found using a calculation. Add up all of the numbers and divide by the number of numbers in the data set.

130 people's bought floor seats ...

→ First , we need to identify and define the unknown terms.

F: # of floor seats sold

G: # of grandstand seats sold

• F + G = 210 {210 is the total number of seats sold}

• 5F + 2G = 660 {the 5 , 2 and 660 refer to amounts of dollars} .

→ We now have two equations in two unknowns , which we should be able to solve.

→ Let's solve the first equation for G, and then substitute the value of G into the second equation , so that we have will have a single equation with only F as the unknown ...;

→ F represents the number for which we are looking: The number of floor seats sold.

F + G = 210

F - F + G = 210 - F

G = 210 - P

→ 2F+ 5G = 660

→ 2F + 5(210 - F) = 660

→ 2F + 1050 - 5F = 660

→ - 3F + 1050 = 660

→ - 3F + 1050 - 1050 = 660 - 1050

→ - 3F = - 390

→ F = - 390 / - 3 = 130

→ F = 130

• Hence , 130 people's bought floor seats ...

Hope this helps you :) ...

#Carry on learning# :) ...

Answer:

im not good at math but i think its a

Step-by-step explanation: i made sense to me since it said "the box extends from 26 to 21"

Answer:

Positive association

Step-by-step explanation:

As the Temperature goes up the more money you have to spend because you pay for the electricity that produces the heat

positive association is when one varriable increases so does the other.

Answer: ✧･ﾟ: *✧･ﾟ:*    *:･ﾟ✧*:･ﾟ✧

                 Hello!

✧･ﾟ: *✧･ﾟ:*    *:･ﾟ✧*:･ﾟ✧

❖ Mean = 4.8  Median = 4.5

The mean is the average. To find the mean add up all the numbers and divide by the number of numbers:

3 + 3 + 4 + 5 + 5 + 9 = 29

29 ÷ 6 = 4.8

To find the mean, keep crossing out numbers until you are left with one number (for an odd amount of numbers). When you have an even amount of numbers, keep crossing out until you are left with 2 numbers. Add those 2 numbers and then divide:

4 + 5 = 9

9 ÷ 2 = 4.5

Step-by-step explanation:

Answer:

C. 12 yards

Step-by-step explanation:

There are 3 feet in one yard, meaning we can divide 36 feet by 3 feet per yard to get the answer.

36/3 = 12

There are 12 yards in 36 feet.

Answer:

The formula to solve pi to get the area is 3.14r × 2 = Area

3.14 × (radius) × 2 = Area

Answer:

124

Step-by-step explanation:

is in the photo

i hope this helps :)

Answer:

124

Step-by-step explanation:

4 x 32 = 128

128 + 8 divided 2 - (5 + 3 )

divide 8 and 2 = 4

128 + 4 - ( 5 + 3)

add 5 + 3 = 8

128 + 4 - 8

Answer: 124

Answer:

42

Step-by-step explanation:

start at one of the points and count the squares up and around until you get back to where you started from

12+15+6+9=42

Answer:

525

Step-by-step explanation:

3000/200 = 15

15x35 = 525

Answer:

he spent 19$

Step-by-step explanation:

The equation to represent the temperatures are A = ( -5F ) + ( 13F ) - ( 5F )

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

Let the initial temperature in the morning be a = -5F

Now , the increase in temperature is b = 13F

And , the decrease in temperature is c = -5F

On simplifying the equation , we get

A = a + b + c

A = ( -5F ) + ( 13F ) - ( 5F )

Therefore , the value of A is  ( -5F ) + ( 13F ) - ( 5F ) = 3F

Hence , the equation is A =  ( -5F ) + ( 13F ) - ( 5F )

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ7

Answer:

1) x<6750

2) variable equation is 8x+16≤80, answer is 8

Step-by-step explanation:

1) do 15x450 to figure out the highest number it could be and it could be any number lower than that.

2) 8x bc each earring is 8, 16 bc the nail paint, and 80 bc thats her budget, or equal to bc she can spend that amount

for the answer substract a6 so 8x and 64, divide by 8 so x=8

Answer:

1.  n≤6,750    

Step-by-step explanation:

2.  n≤8      she can buy as many as 8 pairs of earings

work

8n≤80-16

8n≤64

Answer:

neith.They both have same amount of cheese.

Step-by-step explanation:

the only thing that changed is he added more eggs to his omelette.

Answer:

Jenny's omlet would be cheesier.

Step-by-step explanation:

This is because if he started them off equally and then added more eggs to his it would make the amount of cheese in his omlet smaller therefore Jenny's omlet would be cheesier.

Hope this helps you!

Answer:

C) [tex]\frac{1}{32}[/tex]

Step-by-step explanation:

There are only two options: right or wrong.

Right for each question: [tex]\frac{1}{2}[/tex]

Since there are 5 questions, and 5 right answers are desired: [tex]\frac{1}{2} * \frac{1}{2} * \frac{1}{2} * \frac{1}{2} * \frac{1}{2}[/tex]

= [tex]\frac{1}{32}[/tex]