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jok3333 [9.3K]
3 years ago
15

Guys help I’m failing math this assignment is 100 points it will boost my grade

Mathematics
2 answers:
marissa [1.9K]3 years ago
8 0

Answer:

im not sure

Step-by-step explanation:

lol i just want points

Gnom [1K]3 years ago
3 0

Answer:

1. -6.5

2. 8.5

3. -2 7/10

Step-by-step explanation:

If you any more questions comment

could you give me Brₐinliest

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For the equation 21+3x=3x+k, which value of K will create a false equation with no solution
Nitella [24]

Answer:

OPTION B: K = 15

Step-by-step explanation:

The given equation is: 21 + 3x = 3x + K

Substitute K = 3x

we get: 21 = 3x + 3x + 3x

⇒ 21 + 3x = 6x

⇒ 21 = 3x

This gives the value of x = 7. That means K = 3x gives us a solution. So, OPTION A is eliminated.

Now, K = 15

The equation becomes 21 + 3x = 3x + 15

Subtracting 3x on both the sides, we get:

⇒ 21 + 3x - 3x = 15 + 3x - 3x

⇒ 21 = 15 which can not be correct. So, K = 15 renders the equation meaningless and hence with no solution.

So, OPTION B is the answer.

Note that K = 21 will give the equation with infinitely many solutions.

8 0
3 years ago
Shelley is 15 and has a goal of saving $800 toward her prom and senior trip in 2 years; right now she has $20 total. She's plann
Dimas [21]

Answer:

The answer is "Do her friends have accounts at the same bank?"

Step-by-step explanation:

In this question, the above given-choice is correct because the account on the same bank has certainly, but when a retirement fund in a company is concerned, you could only have a savings account on their behalf, and the mutual funds must then be distributed, and these several savings accounts can be opened is by tracking the amount they need to save for every savings target.

6 0
3 years ago
Help! Which choice is the most efficient first step to solve this set of equations?
Dmitry [639]

Answer:

Substitute 3x - 5 for y in the second equation.

Step-by-step explanation:

Generally, to solve the system of linear equations of x and y, the first step would be trying to eliminate x (or y).

Then turn the system into the equation of only y (or x).

Next, try to solve for y (or x).

Then substitute the solved y (or x) into the original system to work out x (or y).

**********

3 options (1 addition, 2 subtractions) do not eliminate x or y (x and y still exist after manipulation).

=> Remaining option relating substitution would be a reasonable choice.

5 0
3 years ago
What are some ways you could break apart 7x9 using the Distributive property?
irakobra [83]
I think i can help you but what grade are you because it depends<span />
8 0
3 years ago
HELP
Mice21 [21]
The answer to this question is b
3 0
3 years ago
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