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Deffense [45]
3 years ago
11

What is the solution to the system: ax+y=18 and 4ax-y=12? Use elimination. Put the answer as an ordered pair. Show work on the n

ext question. You have 3 unknowns and only 2 equations so you can have the variable "a" in your solution
Mathematics
2 answers:
Anit [1.1K]3 years ago
8 0

Answer:

{(\frac{6}{a},12)}

Step-by-step explanation:

\left \{ {{ax+y=18} \atop {4ax-y=12}} \right.

5ax = 30

x = \frac{6}{a}

a(\frac{6}{a}) + y = 18

6 + y =18→y=12

4a(\frac{6}{a}) - 12 = 12

6 - 12 = 12 → 12 = 12 true  x=\frac{6}{a}  y=12

Alchen [17]3 years ago
5 0

Answer:

Ax=6

Y=12

Therefore a=6, x=1, y=12

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In a triangle the measurements of the angles are x°, ( x + 6)°, (2x + 10)°, and the sum of the three angles of a triangle is 180
34kurt

Answer:

largest angle = 92°

Step-by-step explanation:

Since the measurement of the angles are;

x°, ( x + 6)°, (2x + 10)°

And we know that sum of angles in a triangle is 180. Thus;

x + (x + 6) + (2x + 10) = 180

x + x + 6 + 2x + 10 = 180

4x + 16 = 180

4x = 180 - 16

4x = 164

x = 164/4

x = 41°

The other two angles will be;

(41 + 6)° and (2(41) + 10)°

Which gives;

47° and 92°

So,largest angle = 92°

7 0
3 years ago
Suppose you have a bag of red, blue, and yellow marbles. If the probability of picking a red marble is start fraction 1 over 6 e
Alona [7]

Answer: B. one-third

Step-by-step explanation:

Probability of picking a red marble, P(R) = 1/6

Probability of picking a yellow marble, P(Y) = 1/2

Therefore, the probability of picking a blue marble will be:

= 1 - (P(R) + P(Y))

= 1 - (1/6 + 1/2)

= 1 - (4/6).

= 1 - 2/3

= 1/3

The probability of picking a blue marble will be one third

8 0
3 years ago
Right answer i will give brainliest
Xelga [282]

Answer:

B and C

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Which property is BEST to use when combining 3/5 + 1/4 +2/5​
iragen [17]

Answer:

Step-by-step explanation:

Commutative property of addition:  The order in which you add these fractions together doesn't matter.

I would combine 3/5 and 2/5 first, as that readily results in 5/5, or just 1.

Then we have 1 1/4, or 1.25, or 5/4 as the final answer.

6 0
3 years ago
Read 2 more answers
What is the solution to the opening sentence?
777dan777 [17]

Hello.

The answewr is: 3

Step 1: Subtract 2x from both sides.

4x−4−2x=2x+2−2x

2x−4=2

Step 2: Add 4 to both sides.

2x−4+4=2+4

2x=6

Step 3: Divide both sides by 2.

2x2=6/2

Have a nice day

7 0
3 years ago
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