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2 years ago

Eq 1 X+Y=16 Eq 2 6x+9y=120 Solve by substitution Solve step by step

Mathematics

1 answer:

Alexxx [7]2 years ago

7 0

Answer:

X = 8, Y = 8

Step-by-step explanation:

Step 1) Solve for Y w/ bottom equation to yield - y = -2/3x + 40/3.

Step 2) substitute equation into x + y = 16 to get 1/3x + 40/3 = 16 multiply by 3 to clear the fractions and get x + 40 = 48 - subtract 40 by both sides to get x = 8.

Step 3) Plug x = 8 into the bottom equation to get 48 + 9y = 120, subtract 48 by both sides to get 9y = 72 and then divide by 9. The product is y = 8.

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Determine whether the triangles are congruent. Explain your reasoning .

Vanyuwa [196]

Answer:

The triangles are congruent by congruency theorem SAS.

Step-by-step explanation:

Side-Angle-Side, as it suggests, is when a triangle is congruent by the order of congruent side, congruent angle, and another congruent side. If named certain ways, they can be congruent. Since the question does not provide a specific way of naming the triangles, we can assume that any way is allowed. 2.5 and 2.5 are congruent, followed by angles D and G which have the congruent angle markers. The congruent angles are followed by 1.7 and 1.7, making the triangles congruent by Side-Angle-Side.

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3 years ago

the graphy below shows the relationshio between the numbers of calories and the total amount in fat in different types of sandwi

taurus [48]

Answer:

The points have a positive trend and are most likely linear

Answer (C)

Step-by-step explanation:

∵ The graph represents the relation between the numbers

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of sandwiches

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∴ Correlation is Positive

∵ If you draw the line best fit to check if it's strong or weak

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3 0

3 years ago

Hey can you please help me posted picture of question

zhuklara [117]

For this case we have the following polynomial:
x2 + 6x + 8
We note that the polynomial can be rewritten as:
(x + 4) (x + 2)
Answer:
A common factor binomial for this case is given by:
(x + 4)
option B

7 0

3 years ago

Read 2 more answers

Given data set:

denpristay [2]

Answer:

see below

Step-by-step explanation:

6, 2, 7, 12, 6, 1, 7, 1, 9, 7, 8

First put the numbers in order from smallest to largest

1,1, 2,6,6, 7, 7, 7, 8, 9, 12

The mean is adding all the numbers and dividing by the number of numbers

( 1+1+ 2+6+6+ 7+ 7+ 7+ 8+ 9+ 12 )/11

66/1 =6

The mean is 6

The median is the middle

There are 11 terms

11/5 = 5.5 so 6 is the middle number

1,1, 2,6,6, 7, 7, 7, 8, 9, 12

7 is the median

Mode is the most often

7 appears three times so it is the mode

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3 years ago

Thursday<br>Every row and column must add<br>to 24. Use only 4 through 12.<br>be<br>on

maw [93]

Answer:

12 two times or 4 eight times

7 0

3 years ago