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
VikaD [51]
3 years ago
14

Solve simultaneous equations 3x-2y=17 +2x-2y=10

Mathematics
1 answer:
Zarrin [17]3 years ago
3 0

Answer:

(7;2)

Step-by-step explanation:

3x - 2y  = 17 \\  - 2y = 17 - 3x \\ 2x + 17 - 3x = 10 \\ 2x - 3x = 10 - 17 \\  - x =  - 7 \\ x = 7 \\  - 2y = 17 - 21 \\  - 2y =  - 4 \\ y = 2

You might be interested in
Please help me please! It is timed!
hichkok12 [17]

Answer:

it's 4

the reason it because in the graph 30 and so on are the same

3 0
3 years ago
What is the result when 75 is decreased by 40%
RSB [31]
 <span>30 is 40% of 75  so it should be 45
</span>
7 0
3 years ago
(b) Rewrite the percentage in the sentence below as a decimal.
Arturiano [62]
40% = 0.4
Explication:
40 / 100 = 0.4

5 0
3 years ago
I will give brainliest<br> 100=2(5x+3+2)<br> show work please
Debora [2.8K]
Answer is 9.5- explanation- if u substitute 9.5 in the equation 2(5 x 9.5+ 5 = so multiply 9.5 times 5 which equals 47.5 then multiply by the 2 which equals 95 plus the 2+3=5 - 95+5 equals 100 (sorry I’m bad at explaining)
6 0
3 years ago
What is sin45 degrees =20/r
alisha [4.7K]

Answer:

r = 28.28

Step-by-step explanation:

you already gave the equation: sin45°= 20/r

you wanna start by multiplying both sides by r. You do this so that your variable can be in the numerator and it will be easier to solve the equation:

r (sin45°) = 20

Now you divide both sides by sin45°, this will give you your final answer. For this, you have to put it in a calculator:

r = 28.28

P.S, good job on already knowing your equation... when i was learning this it took me a while to get eh hang of it :)

6 0
3 years ago
Other questions:
  • Can someone please explain to me how to do this?
    13·1 answer
  • Triangle ABC is similar to Triangle XYZ. 
    12·1 answer
  • Please help, Due tomorrow
    7·2 answers
  • What is the area of the figure <br> Enter your answer in the box <br><br> __in2
    9·2 answers
  • Trigonometry Identities help please
    9·1 answer
  • I need help with #13. If you help me and write everything it's asking I will mark you as the brainiest. Thank you
    8·1 answer
  • A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan is to randomly select and tes
    7·1 answer
  • A car travels 200 miles in 2 hours and 30 minutes. What is it's average speed?
    5·2 answers
  • What is the equation of the line shown in this graph​
    8·1 answer
  • I bought a pack of gum for $1.99 and 6 bottles of water. I spent a total of $15.49. How much does each bottle of water cost?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!