3 years ago

Solve the following system of equations algebraically. x + 2y = 18 y = x-3 X= y =

Mathematics

2 answers:

ivolga24 [154]3 years ago

7 0

Answer:

x + 2y - 18 =0

y = x - 3 is x = 3

Step-by-step explanation:

finlep [7]3 years ago

5 0

You plug in the equation of y into x.
X+2(x-3)=18
Gives you the answer of, x = 8
Then you plug in x which is 8 Into the equation of y.
So, y = 8-3
Which gives you
Y = 5
The answer is
X = 8
Y = 5

You might be interested in

A rectangular prism with a height of 6 m, a length of 5 m, and a width of 4 m will have a different surface area than a rectangu

photoshop1234 [79]

The surface area of both will be the same, 148

3 0

3 years ago

Read 2 more answers

An auto mechanic converts a metric part to 0.492 in. The part comes only in fractional sizes given to the nearest 64th of an inc

tatuchka [14]

Answer:

the closest part the mechanic can chose is 0.5 inch

Step-by-step explanation:

fractional sizes given to the nearest 64th of an inch = 1/64 = 0.0156

the closest size to 0.492in = 0.492 + 0.0156 = 0.5076 inches

approximately, the closest part the mechanic can chose is 0.5 inch

4 0

3 years ago

I need help. Give an explanation, please!

AURORKA [14]

Answer:

y=35+x+15x/100. since x is the money earn so 15percent of x

3 0

3 years ago

Read 2 more answers

The waiting time to ride a roller coaster is 20 minutes when 150 people are in line. How long is the waiting time when 240 peopl

laiz [17]

Answer: The waiting time will be 32 minutes when 240 people in line.

Step-by-step explanation:

Let us assume that the waiting time is directly proportional to the number of people in the queue.

Equation of direct proportion between variables x and y : $\dfrac{x_1}{y_1}=\dfrac{x_2}{y_2}$

Put $x_1=20,\ y_1=150,\ y_2=150$ to find $x_2$ .

$\dfrac{20}{150}=\dfrac{x_2}{240}\\\\\Rightarrow\ x_2=\dfrac{20}{150}\times240\\\\\Rightarrow\ x_2=32$

Hence, the waiting time will be 32 minutes when 240 people in line.

3 0

2 years ago

Read 2 more answers

after a deposit of $476 Sierra saves $11 per day how much money will Ciara have in 8 Days use an equation to solve the problem i

Alinara [238K]

11x 8 =88 . 476+88=564

7 0

3 years ago