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sergij07 [2.7K]
3 years ago
10

Which is a solution to the systen of equations. x+3y=18. x+2y=14 A) 6,4 B) 4,6 C) 6,-4 D) -4,6​

Mathematics
2 answers:
liberstina [14]3 years ago
8 0
A:). because if you subtract on x+2y=14 from x+3y=18 you get y=4 and letter A is the only answer with positive 4 in the y coordinate (x,y)
DedPeter [7]3 years ago
7 0

Step-by-step explanation:

• Elimination (find y) :

x + 3y = 18

<u>x + 2y = 14</u><u> </u> _

y = 4

• Substitute y = 4 to one equation :

x + 3y = 18

x + 3(4) = 18

x + 12 = 18

x = 18 - 12

x = 6

• The set of equations :

{x, y} = {6, 4}

So, the solution to that system equation is 6, 4 (A)

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Answer: OPTION C

Step-by-step explanation:

 By definition, the median is the middle number in the set.

Therefore, keeping the definition  above on mind, to solve this problem the numbers must be arranged from least to greastest. In the figure shown in the problem, you can see that they are already arranged in this order. Therefore, the middle number in the set is:

14, 28, 33, 42, 53, 81, 97

Then, you can conclude that the median is: 42.

Therefore, the answer is the Option C.

8 0
3 years ago
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Sandra waits tables at Polly's Tamales. While she is working, she receives a discount on any food she buys. If an item normally
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Step-by-step explanation: 2/3 of 9 = 6

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3 years ago
If 5 1/3= x/3 then x=
rosijanka [135]

Answer:

16

Step-by-step explanation:

Hope you get it.

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3 0
3 years ago
Please help ill give you 50 points
Verdich [7]

a. 3 × 10^0

b. 33. 6 × 10^0

c. 57. 6 × 10^2

d. 4. 0 × 10^-7

e. 7. 0 × 10^-1

<h3>What is scientific notation?</h3>

Scientific notation is simply a way of expressing numbers that are too large or small to be written in decimal form.

It may be referred to as standard index form or scientific form.

From the information given, we have;

a. 0. 000003 is written in standard form as;

= 3 × 10^-6 × 3 × 10^6

= 3 × 10^-6 + 3

= 3 × 10^0

= 3

b. 56, 000, 000. 00 is written in standard form as;

= 5. 6 × 10^7 × 6 × 10^-7

= 33. 6 × 10^7 -7

= 33. 6 × 10^0

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c. 8. 0 × 10^-3 × 7. 2 × 10^5

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= 57. 6 × 10^2

d. 4. 0 × 10^-3 × 4. 0 × 10^-4

= 4. 0 ^ -3 +(-4)

= 4. 0 × 10^-7

e. 7. 0 × 10^3 × 7. 0 × 10^4

= 7. 0 × 10^ 3-4

= 7. 0 × 10^-1

Thus, scientific notation is also referred to as standard form.

Learn more about scientific notation here:

brainly.com/question/27862246

#SPJ1

5 0
1 year ago
Marcus is making homemade barbecue sauce.The recipe caps for 3 cups of ketchup for every 1/2 cup of mustard
SSSSS [86.1K]

Answer:

3 divided  by 1/2

Step-by-step explanation:

turn 3 into 3/1  then flip 1/2 into 2/1 and multiply which is <u><em>6</em></u>

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