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
Anon25 [30]
3 years ago
12

Can someone help me with these questions please?

Mathematics
1 answer:
kotykmax [81]3 years ago
3 0

Step-by-step explanation:

You can solve systems of equations using either substitution or elimination.  For these problems, I recommend elimination.  I'll do the first one as an example.

-3x + 16y = 9

-4x + 8y = 12

Multiply the second equation by -2.

8x − 16y = -24

Add to the first equation (notice the y's cancel out).

(-3x + 16y) + (8x − 16y) = 9 − 24

5x = -15

Solve for x.

x = -3

Now you can plug this into either equation to find y.

-3(-3) + 16y = 9

9 + 16y = 9

y = 0

The solution is (-3, 0).

You might be interested in
What is the answer to 5 1 x 10=when it involves multiplication do you times first and then add?
fiasKO [112]
5+1 times 10=???

order of operations
multiplcation comes before addition
so yes, multiply first

5+1 times 10=5+10=15
7 0
3 years ago
A clown bought 6 bags of round balloons with 24 balloons in each bag.The clown also bought 3 bags of long balloons with 36 ballo
Ierofanga [76]
6 bags × 24 balloons = the amount of round balloons
6× 24 = 144
3 bags × 36 balloons = the amount of long balloons
3 ×36=108

108 long balloons - 144 round balloons = number of more long balloons that round ones
108-144=-36
He has -36 more long balloons that round ones
Or 36 more round balloons that long ones
7 0
3 years ago
What is the remainder of (3-6×2-9xl+3)?
Naddik [55]
9lx−6x^2+6
It not 91 it the letter L just lower case
3 0
4 years ago
Each of 16 students will give a 1 1/5 minute speech in English class. How long will it take to give the speeches?
Gwar [14]

Answer:

35 and 1/5

Step-by-step explanation:

you multiply.

7 0
3 years ago
Find the term to term rules for the following sequences 28, 25 ,22, 19, 16
Hoochie [10]

Answer: -3n+31

Step-by-step explanation:

1. 28-55=3

25-22=3

22-19=3

19-16=3

This means that n = -3 as we are subtracting

2. We then do the opposite, we take the first number and we add 3 instead of taking it away we get 31.

That is how you get your answer

-3n+31

4 0
3 years ago
Read 2 more answers
Other questions:
  • When a number is decreased by 4%, the result is 93. What is the original number to the nearest tenth?
    8·2 answers
  • Determine the X- and Y- intercepts for the graph defined by the given equation. Y= -8
    13·2 answers
  • 0.94300 scientific notation​
    10·1 answer
  • Is 1 a rational number?
    9·1 answer
  • Lara wrote the statements shown in the chart below:
    14·2 answers
  • Need help with this please and thank you in advance
    7·1 answer
  • Which of the following statements are true regarding functions?
    14·1 answer
  • A) Write an equation for the line of best fit.
    12·1 answer
  • Add (8b - 7) + (6b + 8) simplify the answers. Pls show steps
    10·1 answer
  • A cylinder has a height of 10 inches and a radius of 5.5 inches. What is the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!