1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yKpoI14uk [10]
3 years ago
14

What is the solution to the system of equations2x + 3y = 40andy=x + 10?

Mathematics
2 answers:
Vladimir79 [104]3 years ago
7 0

Answer:

A is the correct answer

Step-by-step explanation:

If you plug y=x+10 in for the Y variable you just have to solve by multiplying.

1.) It should look like this:

2x + 3(x +10) = 40

2.) You will distribute the three which will make the equation look like this:

2x + 3x + 30 = 40

3.) Add like terms. Then subtract 30 from both sides. Then divide 5 by both sides to get the variable x alone.

Hope that helps

Artemon [7]3 years ago
5 0

A is the correct answer is the correcta answer

If you plug y=x+10 in for the Y variable you just have to solve by multiplying.

1.) It should look like this:

2x + 3(x +10) = 40

2.) You will distribute the three which will make the equation look like this:

2x + 3x + 30 = 40

3.) Add like terms. Then subtract 30 from both sides. Then divide 5 by both sides to get the variable x alone.

You might be interested in
Devaughn's age is two times sydney's age. the sum of their ages is 30 . what is sydney's age
Anton [14]
20 and 10, 20 is 2 times 10 and if you add them together its 30

6 0
2 years ago
The volume of a triangular prism with base dimensions of 4 cm height and 10 cm base and a prism height of 15 cm is??
jonny [76]
I think you can do this way:
Volume = B*h where B is the area of the base.
B= 4 * 10 = 40
V= 40 * 15
V= 600 cm^3
5 0
3 years ago
Read 2 more answers
Find the average value of f over region
SVETLANKA909090 [29]
D is a right triangle with base length 1 and height 8, so the area of D is \dfrac12(1)(8)=4.

The average value of f(x,y) over D is given by the ratio

\dfrac{\displaystyle\iint_Df(x,y)\,\mathrm dA}{\displaystyle\iint_D\mathrm dA}

The denominator is just the area of D, which we already know. The average value is then simplified to

\displaystyle\frac74\iint_Dxy\,\mathrm dA

In the x,y-plane, we can describe the region D as all points (x,y) that lie between the lines y=0 and y=8x (the lines which coincide with the triangle's base and hypotenuse, respectively), taking 0\le x\le1. So, the integral is given by, and evaluates to,

\displaystyle\frac74\int_{x=0}^{x=1}\int_{y=0}^{y=8x}xy\,\mathrm dy\,\mathrm dx=\frac78\int_{x=0}^{x=1}xy^2\bigg|_{y=0}^{y=8x}\,\mathrm dx
=\displaystyle56\int_{x=0}^{x=1}x^3\,\mathrm dx
=14x^4\bigg|_{x=0}^{x=1}
=14
3 0
2 years ago
This week, Ivania ran a total of 20 km, which is 6.5 km farther than she ran last week. If w represents the number of kilometers
NARA [144]

Answer:

Step-by-step explanation:

6.5 + w = 20

13.5 km

6 0
3 years ago
Question 19 please........
MrRa [10]
The answer is B. The shape is staying the exact same, it’s just moving.
7 0
3 years ago
Other questions:
  • Need help please help me!!
    7·1 answer
  • What is the equation of a vertical line passing through (-5,-2)
    8·1 answer
  • Surface integrals using a parametric description. evaluate the surface integral \int \int_{s} f(x,y,z)dS using a parametric desc
    11·1 answer
  • What is i^84? a) -i b) i c) -1 d) 1
    10·1 answer
  • I NEED ANSWER ASAP! I HAVE A LOT OF POINTS, I WILL GIVE 50 POINTS AND BRAINLIEST TO FIRST ANSWERRRRRR!
    14·2 answers
  • 6^2 -(8-4) ^2 +7=<br> pls help I can’t fail math LOL
    12·2 answers
  • Volume of a cylyinder witha heght of 2.3 and a base diameter of 15.2
    7·1 answer
  • Rodeny chose B as the correct answer. How did he get that answer?
    14·1 answer
  • Please help ill appreciate it best answer gets the brainliest answer.
    9·1 answer
  • Which of the following graphs model exponential functions? Select all that apply.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!