3 years ago

Determine whether the graphs of the equations are parallel, perpendicular, or neither.

Mathematics

1 answer:

mel-nik [20]3 years ago

3 0

Answer:

the lines of the graph are perpendicular.

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Work out, giving your answer in its simplest form:

ratelena [41]

Answer:

7 $\frac{3}{4}$

Step-by-step explanation:

2 $\frac{1}{4}$ + 5 $\frac{1}{2}$ = 2+5=7, $\frac{1}{4}$ + $\frac{1}{2}$ = $\frac{3}{4}$

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Answer:

b. Miguel ends up with $35 less than he started with

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4 years ago

Suppose that y varies directly with x and y =10 when x = 20. What is y when x=15

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y=13.34 when x=15

Step-by-step explanation:

We are given that x varies directly with y i.e y ∝ x

We know that: y ∝ x then

y= k/x

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So, if y=10 and x=20 we can find k

$y=\frac{k}{x}\\10=\frac{k}{20}\\ k=10*20\\k=200$

Now, we need to find y when x=15

We know that k = 200,

So, $y=\frac{k}{x}\\y=\frac{200}{15}\\y=13.34\\$

So, y=13.34 when x=15

Keywords: Direct variation

Learn more about Direct variation at:

#learnwithBrainly

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