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FrozenT [24]
3 years ago
7

Use algebraic rules of equations to predict the solution type to the system of equations. Include all of your work for full cred

it.

Mathematics
1 answer:
svp [43]3 years ago
5 0

Answer:

The system has infinite solutions

Step-by-step explanation:

For a system of two linear equations it is always true that if one equation is a linear combination of another, then the system will have infinite solutions.

Suppose we have the following system:

ax + by = c\\dx + hy = f

If there is a number n for which it is fulfilled that

= n *

Then the system has infinite solutions.

In this case the system is:

x + 2y=10\\3x+6y =30

Observe that:

= \frac{1}{3}*

Then n =\frac{1}{3}

The system has infinite solutions

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HELP ME A bag contains only red and blue marbles. Yasmine takes one marble at random from the bag. The probability that she take
Sidana [21]

Answer:

C. 5 Red marbles

Step-by-step explanation:

If she started with 5 red marbles and had a probability of 1/5 of drawing a red marble, then there were 20 blue marbles, and 25 total marbles.

   5/25 = 1/5

If she added 5 red marbles, she now would have 10 red marbles and still 20 blue marbles, giving her 30 total marbles in the bag.

  10/30 = 1/3, so C is the right answer.  

You can rule out other choices by repeating the above steps and substituting appropriate values

7 0
4 years ago
Evaluate the expression for the given value of the variable |b|+b³;b=-2
erastova [34]

|b| + b^3; b = -2

  • Substitute -2 for b.

|(-2)| + (-2)^3

  • Solve exponents first.

|(-2)| + (-8)

  • |(-2)| is the same as positive 2 since it is the absolute value.
  • Rewrite the expression.

2 + (-8)

  • Solve.
<h3>-6 is your answer.</h3>
4 0
3 years ago
In a study of the television viewing habits of children, a developmental psychologist selects a random sample of 300 first grade
rusak2 [61]

Answer

let me know if you can see the photo

Step-by-step explanation:

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4 0
4 years ago
A company has 24 employees. Each employee volunteers to bring 1 item to the local school
tiny-mole [99]

Answer:

Step-by-step explanation:

1/8 into 24/8 would be 3

1/3 into 24/3 would be 8

double the amount of pencils would be 6

6+8+3=17

24-17=7

So, 7 employees bring backpacks.

6 0
3 years ago
Read 2 more answers
An object that weighs 24 pounds on Mercury weighs approximately 80 pounds on Earth. A rock weighs 240 pounds on Mercury. What is
AnnyKZ [126]

Answer:

800 pounds.

Step-by-step explanation:

We have been given that an object that weighs 24 pounds on Mercury weighs approximately 80 pounds on Earth. A rock weighs 240 pounds on Mercury. We are asked to find the weight of rock on Earth.

We will use proportions to solve our given problem as proportions state that the ratio between two proportional quantities is equal.

\frac{\text{Weight on Earth}}{\text{Weight on Mercury}}=\frac{80}{24}

Upon substituting our given value, we will get:

\frac{\text{Weight on Earth}}{240}=\frac{80}{24}

\frac{\text{Weight on Earth}}{240}\cdot 240=\frac{80}{24}\cdot 240

\text{Weight on Earth}}=\frac{80}{1}\cdot 10

\text{Weight on Earth}=800

Therefore, the weight of rock on Earth would be approximately 800 pounds.

4 0
3 years ago
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