MATHEMATICS MIDDLE SCHOOL

Solve the System of Equations using the substitution method.
-5x-3y=16
y=x

Answers

Answer 1
Answer: According to the second equation, “x” is equal to “y.” With this knowledge, we can substitute the value “x” into the first equation:

-5x – 3y = 16
-5x – 3(x) = 16

Combine like terms:

-8x = 16

Divide (-8) from both sides of the equation:

x = -2

We have proven that “x” is equal to (-2). Using this knowledge, we can now substitute the known value of “x” into the second equation:

y = x
y = (-2)

We have now proven the values of both X and Y:

x = -2
y = -2

I hope this helps!

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Please answer the question and shhow how you got your answer please

Answers

Answer: 0

Step-by-step explanation: Two of the numbers are both negative you’re going to want to add those together first. -17 + (-3) = -20. What’s left is -20 + 20 when you add a positive (20) with a negative (-20) you’re going to need to ‘subtract’ so sort of like this : 20 - 20 and that equals 0
The answer is 7272837327373736379229838

Please Help!!!!1) A telephone pole is 60 feet tall. It casts a shadow that is 24 feet long. A tree that is next to the telephone pole is 15 feet tall. How long is the shadow of the tree?

4 feet

6 feet

15 feet

20 feet

2) A building with a height of 40 m casts a shadow that is 30 m long. A statue next to the building casts a shadow that is 6 m long. How tall is the statue?

8 m

5 m

2 m

1.5 m

Answers

Number 1 is 6 feet and number 2 is 8 m

Linda is planning to build a rectangular deck that is 12 feet longer than it is wide. Find its width if its area is 589 square feet. Write an equation that models this problem?

Answers

Let the width be x, then the length is x + 12.
Area = length x width = x(x + 12) = 589
x^(2) +12x = 589
Solving the quadratic equation, we have that
x = 19 feet
i.e. the width is 19 feet.

What is 71.88 divided by 6​

Answers

Answer:

11.98

Step-by-step explanation:
11.98 . Could simply use a calculator .

Write an equation of a line whose slope is 10 and y-intercept is (0,-20)(0,−20)

Answers

y = 10x - 20
................................
y = 10x - 20Hope this helps

Describe how you can find the prime factorization of a number

Answers

I think it would be easier to understand when u see a problem worked out, prime factorization of 18:
18
/\
6X3
/\
3X2
so the prime factorization is 2X3X3
hope that was helpful! :D
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