I really need help. My teacher isn't here and it's 8 am. My brain needs food too -.-

Answer:

c

Step-by-step explanation:

21×43

=(20+1)×(40+3)

=800+40+60+3

Answer:

$120.00 commission

Step-by-step explanation:

1000 X 0.12 = 120

Answer:

I think its D

Step-by-step explanation:

7x8x9 would equally 504 and 9x8x7 would also equall 504.So therefore your answer if I'm not mistaken would be D.

Answer: The answer to your question is D.

Step-by-step explanation: A Commutative Property for Mutliplication order can change be the change will never affect the answer.

Answer:To find the domain and range, we simply solve the equation y = f(x) to determine the values of the independent variable x and obtain the domain. To calculate the range of the function, we simply express x as x=g(y) and then find the domain of g(y).

Step-by-step explanation:sorry if i'm wrong

Answer:

x<=119

Step-by-step explanation:

If it's no greater that the mean is 120 seconds, then the sum of the seconds should be 600. 600-118-129-120-114=119

So x should be less or equal to 119.

Answer:

4021.2 cm³

Step-by-step explanation:

you start by getting the radius, the radius is half the diameter which in this case half of 16 is 8 so 8 is your radius and you already know the height which is 20, now that we have the radius and the height we can start

the formula for finding the volume of a cylinder is πr² · h

so are formula would be π8² · 20 which turns into π64 · 20 which then turns into 1280π or 4021.238...

which you then said we need to round the nearest tenth so 4021.238 to the nearest tenth is 4021.2 cm³

Answer:

x > -1

Step-by-step explanation:

5-2x < 7

5 - 2x - 5 < 7 - 5

-2 x < 2

(-1) (-1)

2x > -2 (divide both sides by 2)

*answer*

Answer:

-1<x

Step-by-step explanation:

5-2x<7

Subtract 5 from both sides:

-2x<7-5

-2x<2

Divide by 2:

-x<1

Switch sides (add x, subtract 1):

-1<x

:)

Answer: 150.7

Step-by-step explanation:

i did the math for it

Answer:

The slope is 3/5

Step-by-step explanation:

This line is in slope-intercept form, meaning that the slope is the term that is multiplied by x.

Answer:

33.3%

Step-by-step explanation:

8000 divided by 2400 is 3.33

3.33 x 10 is 33.3 to make it out of 100%

so she gets one third of her investment

Answer:

For the first one 6x+7=6x+7 there are infinte solutions while 3(2x+10)=6x−2

there are none

Step-by-step explanation:

Hope i helped ;)

Answer:

#1: infinite

#2: none

Step-by-step explanation:

Answer:

uhh 7

Step-by-step explanation:

add

Answer:

3.2

Step-by-step explanation:

first expand the bracket, (2^3 -6 )= (2 x 2 x 2) - 6= 8 - 6 = 2

so, 6.4/2= 3.2

Answer:

tamara runs 5 miles each week : y=5x // proportional // graph starts at 0 and has constant incline of 5/1

Tamara runs 5 more mins more then she walks each day: y=+5 // graph starts at 5 // not proportional

Step-by-step explanation:

Answer:

The First Factor is 14.91

The Product is -14.91

Step-by-step explanation:

When multiplying two numbers the two numbers being multiplied can SOMETIMES be called factors. This is not typically what factors are referring to.

When multiplying a negative number and a positive number the product is ALWAYS negative

Answer:

75,819,782

Step-by-step explanation:

Answer:

75,819,782

Step-by-step explanation:

that's the answer

Answer:

by figuring out what the x anD y values would be

Answer:

Step-by-step explanation:

if you find what real world problem is and how to do the involving integers?

Its C  because  3 1/2 is grater than -5.1 because it is negative

The inequality is −5.1 + d > 3 1/2 which represents the situation, where d represents the distance Veronica drove.

Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.

Veronica lives on a straight road that goes east and west.

Let d represents the distance Veronica drove.

She started from a point 5.1 miles west of her home and drives a certain distance to the store.  

So, she drives:

−5.1 + d

The store is more than  4 1/2 miles east of her home.

Therefore, the inequality that represents the situation is as follows:

−5.1 + d > 3 1/2

Hence, the correct answer would be an option (C).

Learn more about the inequalities here:

brainly.com/question/20383699

#SPJ2

Answer:

$20

Step-by-step explanation:

Answer:

[tex]4[/tex] dollars

Step-by-step explanation:

Casey - 20 percent of [tex]40[/tex] is 8

[tex]40-8=32[/tex] dollars that Casey got back

Brayden - 30 percent of [tex]40[/tex] is 12

[tex]40-12=28[/tex] dollars that Brayden got back

[tex]32-28=4[/tex] dollars

Brainliest please :)

Absolute value is the distance away from zero

number line is a line that continues on forever with numbers on it

coordinate is a point or location on the number line

integer is a number with no decimal

rational number is a number that can be made by an integer divided by an integer

opposites is two numbers that are the same distance away from 0

Answer:

You can purchase 10 songs after buying 12 videos.

Step-by-step explanation:

Step 1 - Find out how much downloading a video costs. If the cost of a video download is 5 times as much as a song download costs, and a song download is $1, then you'd have to multiply 5 x $1, which equals 5. So downloading a video costs $5.

Step 2 - Find how much it costs to buy 12 videos by multiplying the cost of 1 video to how many you bought, 12. We already found out 1 video costs $5, so that would 12 x $5, which equals $60. That means those 12 video downloads costed you $60 dollars.

Step 3 - Find out how many songs you can buy with your remaining credit. If you already payed $60 dollars worth of videos, then you only have $10 dollars left to spend because $70 - $60 is $10. So if every song costs $1 dollar, then you'd be able to purchase 10 more songs until you reach your credit, $70 dollars.

Answer:

Step-by-step explanation:

y=m+b

Answer:

The required equation is [tex]s =\frac{3}{10} m[/tex]

Step-by-step explanation:

Given: The length of a spring varies directly with the mass of an object that is attached to it. When a 30-gram object is attached, the spring stretches 9 centimeters.

To find : Which equation relates the mass of the object, m, and the length of the spring, s?

Solution :

Let the mass of the object  m,

Length of the spring s,

When a 30-gram object is attached, the spring stretches 9 centimeters.

i.e, the times length of the object is attached to spring is The length of a spring varies directly with the mass of an object that is attached to it.

According to question,

i.e, length of the spring is 3 by 10 times the mass of the object.            

Therefore, The required equation is

Answer:

3:8

Explanation:

Answer:

3:8

Step-by-step explanation:

You just flip the numbers around because it just flipped the question.

Answer:

y=5x-1/4

Step-by-step explanation:

The slope-intercept form would be y=mx+b, where y would be on one side. In this case, we would have to move y to one side. You can add y on both sides to move it on the right. Then, you would subtract 1/4 on both sides to move it to the left so that y is on its own side. Then the equation would equal y=5x-1/4, where 5 = m and -1/4 = b.

Answer:

The calculation to your equation is:

Y=5x-1/4

Step-by-step explanation: