3 years ago

5. y is directly proportional to x. If y = 20 when x = 2.5, find y when x=3

Mathematics

1 answer:

nignag [31]3 years ago

6 0

Answer:

y=24

Step-by-step explanation:

you calculate step by step until you get the results

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Tamiku [17]

16 of his stamps are from Africa, since 1/4 of 64 is 16. If I subtract his 28 from Europe and Africa (16 plus 12 equals 28) from his original 64, I am left with 36 stamps. 36/64 is simplified to 9/16. So 9/16 of Terrence's stamps are from Asia.

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3 years ago

Which equation could be solved using the graph above?

nevsk [136]

Answer:

Option 3

Step-by-step explanation:

we are given the graph of a parabola

with vertex at (0,-1) and symmetrical about y axis and also open up.

Hence the equation of the graph would be transformation of $y=x^2$

by a vertical shift of 1 unit down.

So new equation after transformation would be

$y+1=x^2$

Or $y=x^2-1$

Hence option 3 is right choice.

Verify:

Put Solving the equation we get

$x^2=1$

$x=±1$

In the graph x intercepts are the same as -1 and 1

Hence our answer is right.

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anygoal [31]

-1. hope that helps!

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3 years ago

Subtract 10x - 7 from 2x – 6.

hichkok12 [17]

(2x - 6) - (10x - 7) # Starting expression

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Final answer:

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denis23 [38]

Answer:

195

Step-by-step explanation:

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