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3 years ago

Which equation represents a direct variation?

Mathematics

2 answers:

bixtya [17]3 years ago

6 0

Answer:

a y=.5x

Step-by-step explanation:

please dont look at my name

Aleksandr [31]3 years ago

3 0

A the first one the one with y=5x

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3x+2y=8

nevsk [136]

The slope is 3

I am not that shure on the y intercept

3 0

3 years ago

Can somebody solve this for me please?

Karo-lina-s [1.5K]

Answer:

Step-by-step explanation:

3 0

3 years ago

What does x equal 7(2x+5)=4x -9 -x <br> PLEASEEEE HELPPPP ME

Gennadij [26K]

Answer: x=-4

Step-by-step explanation:

Given

7(2x+5)=4x-9-x

Expand parenthesis

14x+35=4x-9-x

Combine like terms

14x+35=3x-9

Subtract 35 on both sides

14x+35-35=3x-9-35

14x=3x-44

Subtract 3x on both sides

14x-3x=3x-44-3x

11x=-44

Divide 11 on both sides

11x/11=-44/11

x=-4

Hope this helps!! :)

Please let me know if you have any questions

5 0

3 years ago

3340 divided by 8 Need the answers

Luden [163]

Answer:

417.5

I hope this helps

3 0

2 years ago

Suppose an airport metal detector catches a person with metal 99% of the time. That is, it misses detecting a person with metal

frozen [14]

Answer:

The probability of missing the first metal-carrying person is P(x≤50)=0.395

Step-by-step explanation:

We define as success to: missing metal carrying detection.

p=0.01

P(x)= $\frac{n!}{x!(n-x)!} p^x(1-p)^{n-x}$

We look for the probability when all metal carring people is detected so x=0

P(x≤50)=1-P(x=0)= $1 - 0.99^{50}$ =0.395

6 0

3 years ago