Gerald and his dog Spike get on the scale together. Their combined weight is 128 pounds. If the ratio of Gerald's weight to Spike's weight is 3:1, how much does Gerald weigh?

Answer:

n=5

Step-by-step explanation:

All of the bases are 9 so you can set the exponents equal to each other.

Exponents in a fraction mean subtraction so 7-n = 2

-n=-5

n=5

Answer:

Im not really sure, how many equations do you need? Do you one whole equation or 2?

Answer:

1

Step-by-step explanation:

1

Answer:

7.3

Step-by-step explanation:

The mean of 4.6, 3, 8.1, 9, 12, 3, 9, 3.5, 7, 3. 6, 22 , 5.8 , 9 , 3 is 7.3

Answer:

5.8

Step-by-step explanation:

First put all the numbers in order from least to greatest.

3, 3, 3, 3.5, 4.6, 7, 8.1, 9, 9, 12

There are two middle numbers, 4.6 and 7. Average them to get 5.8.

Answer:

m = -1

Step-by-step explanation:

m = - (4 + m) + 2

m = -4 - m + 2

m = -2 - m

+m       +m

2m = -2

/2      /2

m = -1

Hope this helps!

Answer:

m=-1

Step-by-step explanation:

m = - ( 4 + m ) + 2

m - 2 = - ( 4 + m )

m - 2 = - 4 - m

m + m = - 4 +  2

2 m = - 2

m = - (1/2)

m = - 1

Answer:

1/2 1/4 1/8 1/10

Step-by-step explanation:

Answer:

x = 2

distributive property of equality, subtraction property of equality, and division property of equality

Step-by-step explanation:

(Proof is in parenthesis)

4(x + 3) = 20 (Given)

4x + 12 = 20 (distributive property of equality)

4x = 8 (subtraction property of equality)

x = 2 (division property of equality)

Answer: x=11/36

Step-by-step explanation:

Step One-Subtract 1/6 from both sides.

2x+1/6-1/6=7/9-1/6

2x=11/18

Step Two-Divide both sides by 2.

2x/2=11/18/2

x=11/36.

My math might not be correct, sorry if it is. In addition, my explanation is a bit confusing, so sorry about that too.

Answer:

The answer is B

Step-by-step explanation:

plz mark brainliest i answered first

Answer:

12/32 is equivalent to 3/8

Answer:

yep your correct!

Step-by-step explanation:

i did 5(-2) -4

which is -10 -4

and that will equal -14!

hope this helps u!

Answer:

-14

Step-by-step explanation:

because if x is -2 we have y=5.(-2)-4 and that's y=-10-4 and that's y=-14

Step-by-step explanation:

(x-4)(x-4)

or

(x-4)^2

Answer:

B

Step-by-step explanation:

4,5,8

Answer:

B: 4,5,8

Step-by-step explanation:

4 is at the bottom right at the top, 5 is at the bottom left, and 8 is at the bottom right at the bottom. All are equal and equivalent to each other.

Answer:

Step-by-step explanation:

73yd + x + 23yd

Solving like terms

96yd + x

Answer:

by-step explanation:

Answer:

The rate of change of the distance between the cars at that instant is 5.46 meters per second

Step-by-step explanation:

Speed of first car = 7 m/s

Speed of second car = 3 m/s

At instant, distance of first car from intersection = 5 meters

distance of second car from intersection = 12 meters

Therefore, we have

Distance between both cars at intant = √(12² + 5²) = 13 m

Rate of change of distance is given by;

2ddd/dt = d(x² + y²)/dt = 2xdx/dt + 2ydy/dt

= 26dd/dt = 2×5×7 + 2×12×3 = 142

dd/dt = 142/26 = 5.46 m/s.

That is the rate of change of the distance between the cars at that instant = 5.46 meters per second.

Answer:

Its A :)

Step-by-step explanation:

Answer:

The answer is (4,4)

Step-by-step explanation:

I had this same problem and got it right so can you give me 5 stars:)

The solution of the system of equations –3x + y = –8 and x + 2y = 12 will be (4,4).

There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of 2 mathematical expressions.

More than one variable may be present inside a linear equation. An equation is said to be linear if the maximum power of the variable is consistently unity.

A formula known as an equation uses the same sign to denote the equality of two expressions.

In another word, the equation must be constrained with some constraints.

Given,

–3x + y = –8 and x + 2y = 12

Multiplying by 2 to equation first

-6x + 2y = -16 and x + 2y = 12

Substracted equation second to first

7x = 28

x = 4

By substituting

y = 4

Hence "The solution of the system of equations –3x + y = –8 and x + 2y = 12 will be (4,4)".

For more about the equation

brainly.com/question/10413253

#SPJ5

Answer:

E

Step-by-step explanation:

Answer:

The answer is Applied Force! I just took the quiz and got it correct! hope this helps!! <333

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

please give brainliest!

for example -3 + 6 is 3. --positive sign

-9+8 is -1 --negative sign

Answer:

The closure property of integers

Step-by-step explanation:

The addition closure properties of integers are similar

The closure property when adding integers are similar

It is similar because, when we add two polynomials, we get another polynomial

Also, when we add two integers, we get another integer

So we can conclude that the closure property of adding integers is similar

Answer: A. -1/2

Step-by-step explanation:

Answer:

π is the constant ...... circle to its circumference

π is the area .... radius 1

Step-by-step explanation:

π is a mathematical constant, defined as ratio of circle's circumference to its diameter.

π is area of circle of radium 1. Area = π r^2 = π (1)^2 = 1

Answer:

x+2y=4 , x−y=−3

6x2+3y2=12, x+y=2

x+y=4, x−y=2

Step-by-step explanation:

The chosen topic is not meant for use with this type of problem.

Answer:

$15 for 1 CD or 15:1

Step-by-step explanation:

You just divide 45 by 3 and get your answer for value per CD. :)

Answer:

It's 9 and 10

I was going to put a picture but it wouldn't let me:P

Answer:

9 + 10

Step-by-step explanation: