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Andru [333]
3 years ago
9

What equals 168 in multiplication

Mathematics
1 answer:
kifflom [539]3 years ago
5 0
84 times 2 equals 168 in multiplication
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Solve the system: <br> 2x+6y=36<br> x+4y=20
Assoli18 [71]

<u>Let's solve this problem step-by-step</u>

<u>Let's set</u>:

   2x + 6y = 36 -- equation 1

   x + 4y = 20 -- equation 2

(equation 2) * 2

   2x + 8y = 40 -- equation 3

(equation 3) - (equation 1)

   2y = 4

   y = 2 -- equation 4

Plug (equation 4)'s value of y into (equation 2)

   x + 4(2) = 20

   x = 20 - 8

   x = 12

<u>Thus x = 12 and y = 2</u>

<u>Let's check, by substituting these values</u>

  2x + 6y = 36\\2(12)+6(2) = 36\\24+12=36\\36=36\\\\x+4y=20\\12+4(2)=20\\12+8=20\\20=20

<u>Answer: x = 12 and y = 2</u>

Hope that helps!

5 0
2 years ago
State the conditions that the following graph meets. (Enter the equation or inequality that is shown by the graph.)
shutvik [7]
The graph shows a horizontal line intersecting (0, 2).

Your answer is: y = 2.
7 0
3 years ago
Read 2 more answers
Which are the solutions of a quadratic equation x squared equals -5 x - 3​
Ksju [112]

Answer:

Desmos says (-4.303 and -0.697)

Step-by-step explanation:

6 0
2 years ago
Multiply (3)(−4)(2). (5 points) Group of answer choices −48 −24 24 48
vladimir2022 [97]

Answer:

-24

Step-by-step explanation:

3 * -4 =.-12

-12 * 2 = -24

8 0
3 years ago
Read 2 more answers
Are:
eimsori [14]

Step-by-step explanation:

a. The mean can be found using the AVERAGE() function.

x = 272.7

b. The standard deviation can be found with the STDEV() function.

s = 39.9

c. The t-score can be found with the T.INV.2T() function.  The confidence level is 0.04, and the degrees of freedom is 26.

t = 2.162

d. Find the lower and upper ends of the confidence interval.

Lower = 272.7 − 2.162 × 39.9 = 186.5

Upper = 272.7 + 2.162 × 39.9 = 358.9

4 0
3 years ago
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