MATHEMATICS HIGH SCHOOL

Solve
1/2x+5=15
Help please

Answers

Answer 1
Answer:

Hello! :)

1/2x + 5 = 15

1/5x + 5 - 5 = 15 - 5 Subtract 5 from both sides

1/2x = 10

2 * (1/2x) = (2) * (10) Multiply both of the sides by 2

x = 20

Hope this answer helped you!

THEDIPER
Answer 2
Answer:

Answer:

x = 20

Step-by-step explanation:

1/2 x 20/1 = 20/2 = 10

10 + 5 = 15

Hope this helps.

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2/3 + w = 3/2 what is w

Solve each equation for the indicated variable. u = -3a - 3 , for a

Answers

Answer:

a = (u + 3)/(-3)

Step-by-step explanation:

Isolate the variable, a. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operation and stands for:

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

First, add 3 to both sides of the equation:

u = -3a - 3

u (+3) = -3a - 3 (+3)

u + 3 = -3a

Next, divide -3 from both sides of the equation:

(u + 3)/-3 = (-3a)/-3

a = (u + 3)/-3

a = (u + 3)/(-3)  is your answer.

~

Cuantas caras , aristas y vertices tiene un cono

Answers

Un cono tiene 1 vértice y 0 aristas.

Which statement models this situation? The time between airline arrivals must be more than 2 minutes. A. t > 2 B. t = 2 C. t < 2 D. t + 2 > 0

Answers

the answer might be A because (time between airline arrivals MUST be more than 2 minutes) in letter A it shows that time is more than the 2 minutes hope this helps =)
The answere is A it says more than teo minutes

Solve the equation, first for x and then for y.

Answers

Answer:

x = 77 - 2y

y = -x/2 + 77/2

Step-by-step explanation:

2x + 4y - 31 = 123

add 31 both sides

2x + 4y - 31 + 31 = 123 + 31

2x +4y = 154

Solve for x

2x = 154 - 4y

divide both sides by 2

x = 77 - 2y

solve for y

2y = 77 - x

divide both sides by 2

y = 77/2 - x/2

The table shows the cost of renting movies online. Number of Movies Cost 1 $3.99 2 $7.98 3 $11.97 4 $15.96 5 $19.95 What does the rate of change mean in this situation? A. The cost increases $3.99 for every additional movie rented.
B. The cost increases $15.96 for every additional movie rented.
C,The cost increases $7.98 for every additional movie rented.
D.The cost increases $11.97 for every additional movie rented

Answers

Answer: A


Step-by-step explanation: If you subtract each price by the price lower then it. Ex: $19.95 - $15.96 = $3.99, $15.96 - $11.97 = $3.99 and so on. They all equal $3.99.

Answer:

A. The cost increases $3.99 for every additional movie rented.

Step-by-step explanation:

Will mark brainliest

Answers

Answer:

the answer would be 270

Step-by-step explanation:

i can explain later:

since x = 5, you plug it in f = 4x +7, and you get f = 27 and since 1/2x is in the denominator, it will flip over and become 2x. 2x is 10, so you multiply f by g and get 270 which is if f/g(5) is the question.
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