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
nikdorinn [45]
3 years ago
7

Solve this system of equations using substitution: y = 2x - 4 x + 2y = 10

Mathematics
1 answer:
aniked [119]3 years ago
4 0

Answer:

x + 2y = 10 = x + y = 5

Step-by-step explanation:

x + 2y = 10

divide 2 by 10

x + y = 5

This is all I really know how to do sorry  

You might be interested in
Please help, whats the right answer?
miv72 [106K]

Answer:

A. 1,485 cubic cm.  B. 27

Step-by-step explanation:

The new prism is dilated by a factor of 3, that means it's made bigger, 3 times bigger on each side.

The dimensions of the new prism are then 12 cm by 7.5 cm by 16.5 cm.

Its volume is then of 12 x 7.5 x 16.5 = 1,485 cubic cm

To answer the second question...

Let's calculate the volume of the original prism:

The original prism's volume was 4 x 2.5 x 5.5 = 55 cubic cm

The new volume is then 1485 / 55 = 27 times bigger than the original.

Which is normal, since we increased each side (dimension) by a factor of 3, so 3x3x3 = 27.

6 0
3 years ago
Pls can I have help with this question if you know it pls tell me ☝
Andrew [12]
Yearly compound interest is given by the following formula:

A = P(1+r)^t

A is the total amount after the time period elapses. P is the initial amount invested. r is the interest rate in decimal form, and t is the amount of years that elapse.

The interest rate is 1.5%. Divide by 100 to convert into a decimal:

1.5 \div 100 = 0.015

We now have all of our values to plug into the equation:

P = 12,000, r = 0.015, t = 2
12,000(1+0.015)^{2}
12,000(1.015)^{2} = 12,362.7

After 2 years, Mary will have 12,362.70 euros in her account.

To find the value of the investment, subtract the original amount from the new amount:

12,362.70 - 12,000 = 362.70

The value of the investment is £362.70.
3 0
4 years ago
Solve -1.5x=9 '''''''''''''''''''''''''''''''
azamat

Answer:

x = -6

Step-by-step explanation:

-1.5x = 9    Divide the -1.5 on both sides

x = -6

Plug in the answer to make sure it works.

-1.5(6) = 9

9 = 9

3 0
3 years ago
What is a equations ?
myrzilka [38]
An equation says that two things are equal. It will have an equals sign "=" like this:

<span>7 + 2 = 10 − 1</span>
4 0
4 years ago
Read 2 more answers
What is the product of 15 and 21?
Artist 52 [7]
315 is your answerrrrrrrrrrrrrrrrrrrrrr
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the volume of a hemisphere with a radius of 6.5 feet rounded to the nearest 10th of a cubic foot
    5·2 answers
  • You are build a water tower. The scale factor is 1 : 12. The model depth is 32 centimeters. What is the actual depth in meters?&
    10·1 answer
  • A recent national survey found that high school students watched an average (mean) of 7.8 movies per month with a population sta
    13·1 answer
  • Write 1.2x10^7 in standard form
    5·2 answers
  • I need help is it A B C or D
    5·1 answer
  • Solve<br> the quadratic equation<br> 4X^2+ 3x-27=0
    12·1 answer
  • Which statement about 3 multiplied by 1/2 must be true?
    15·2 answers
  • Select the correct answer. Consider functions h and k. What is the value of ?
    10·2 answers
  • Which of the following lines is perpendicular to the line
    11·1 answer
  • an ordered pair where the x and y coordinate are the same lies in the 1st or 3rd quadrant. true, sometimes true or not true?. ex
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!