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satela [25.4K]
3 years ago
12

Solution for 8.5+4(1-2.5k)= -25.5

Mathematics
1 answer:
Nonamiya [84]3 years ago
4 0
The solution is k=19/5
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PLSSS HELPPP I WILL GIVE BRAINLIESTTTT!!!!!!!
Ksenya-84 [330]

Answer:

yes to both

Step-by-step explanation:

For a relationship to be a function then each value of x must relate to exactly one unique value of y.

This is the case in this table as

2 → 76

4 → 152

6 → 228

All unique values thus a function

To determine if it is linear then the rate of change is constant for each set of ordered pairs. This is measured using the slope formula.

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (2, 76) and (x₂, y₂ ) = (4, 152 ) ← ordered pair from table

m = \frac{152-76}{4-2} = \frac{76}{2} = 38

Repeat with (x₁, y₁ ) = (4, 152) and (x₂, y₂ ) = (6, 228)

m = \frac{228-152}{6-4} = \frac{76}{2} = 38

Since rate of change is constant then function is linear

8 0
2 years ago
Substitute the value n = 4 in the expressions<br><br>2n<br>n + 2<br>3(n+4)​
Lelu [443]

Step-by-step explanation:

Given n = 4

2n = 2* 4= 8

n + 2 = 4 + 2 = 6

3(n + 4) = 3( 4 + 4) = 3 * 8 = 24

Hope it will help :)

4 0
2 years ago
The number 84 can be expressed as the sum of 54 + 30. Which shows how to use the distributive
TEA [102]

Answer:I onesly dont no

Sorry I have no friends

Step-by-step explanation:

6 0
3 years ago
I need to find a number that the "n" represents. The problem is 9/12=n/32
likoan [24]

The given equation is

\frac{9}{12} = \frac{n}{32}

Here we have to solve for n. First we need to get rid of the denominators and for that we do cross multiplication .

9*32 = 12n

Now we need to isolate n. And for that we need to get rid of 12, by dividing both sides by 12

\frac{9*32}{12}=n

\frac{288}{12} =n

n=24

And that's the required value of n .

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3 years ago
A coin is flipped and the coin lands heads up. Express the probability as a fraction. Probability=The measure of the likelihood
nikitadnepr [17]
P(heads up)= 1/2, or 0.5.
4 0
3 years ago
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