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vaieri [72.5K]
3 years ago
6

Which ordered pair (c, d) is the solution to the given system of linear equations?

Mathematics
2 answers:
olga2289 [7]3 years ago
4 0

Answer:

a

Step-by-step explanation:

i got it right on edge

sasho [114]3 years ago
3 0

Answer:

(-1,6)

Step-by-step explanation:

The missing part of this question is the system given as;

-c+2d=13

-9c-4d=-15

We solve for c in the top equation to get:

c=2d-13

Substitute c=2d-13 into the bottom equation to get:

-9(2d-13)-4d=-15

Expand to get:

-18d+117-4d=-15

Group similar terms to get:

-18d-4d=-15-117

-22d=-132

d=6

Put d=6 into c=2d-13 to get:

c=2*6-13

c=12-13=-1

The solution is (-1,6)

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Need help with 19-20 your suppose to simplify the expression
lesya692 [45]

To solve problem 19, we must remember the order of operations. PEMDAS tells us that we should simplify numbers in parentheses first, exponents next, multiplication and division after that, and finally addition and subtraction. Using this knowledge, we can begin to simplify the problem by working out the innermost set of parentheses:

36 / [10 - (3-1)²]

36 / [10 - (2)²]

Next, we should still simplify what is inside the parentheses but continue to solve the exponents (the next letter in PEMDAS).

36/ (10-4)

After that, we should compute the subtraction that is inside the parentheses.

36/6

Finally, we can solve using division.

6

Now, we can move onto problem 20:

1/4(16d - 24)

To solve this problem, we need to use the distributive property, which allows us to distribute the coefficient of 1/4 through the parentheses by multiplying each term by 1/4.

1/4 (16d-24)

1/4(16d) - 1/4(24)

Next, we can simplify further by using multiplication.

4d - 6

Therefore, your answer to problem 19 is 6 and the answer to problem 20 is 4d -6.

Hope this helps!

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3 years ago
A ladder is placed 30 inches from a wall. It touches the wall at a height of 50 inches from the ground.
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3 years ago
Consider the following system of equations:
Mashutka [201]

Answer:

Liney=-2x+3 intersects line y=x-5

Step-by-step explanation:

We are given that

y=-2x+3

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Hence, the solution (\frac{8}{3},-\frac{7}{3}) is the intersection point of two line  equations .

Answer:Liney=-2x+3 intersects line y=x-5

6 0
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Step-by-step explanation:

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Misha Larkins [42]

Answer:

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Step-by-step explanation:

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5 0
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Read 2 more answers
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