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3 years ago

What is a real life word problem for the equation y=2x

Mathematics

1 answer:

makvit [3.9K]3 years ago

8 0

Answer:

y = 2x

Step-by-step explanation:

Claire is hungry. She buys 2 donuts each costing x $. How much should she pay?

Since one donut costs x $ 2 donuts cost 2x $.

Therefore, total amount Claire should pay, call it y = 2x.

Hence, we have y = 2x.

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murzikaleks [220]

Answer:

$x>-4$

Step-by-step explanation:

Solve like a normal equation by isolating the variable and then dividing by the coefficient.

$-10x-4$

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3 years ago

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What value of q make the equation true 20/q 7/9

maria [59]

20/q = 7/9
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3 years ago

Consider the function f(x)=-2x+5 what is f(5) enter your answer in the box

Oliga [24]

The value of f(5) is $f(5)=-5$

Step-by-step explanation:

The function is $f(x)=-2x+5$

To find $f(5)$ substitute $x=5$ in $f(x)=-2x+5$

$f(5)=-2(5)+5$

Multiplying the terms, we get,

$f(5)=-10+5$

Adding the terms, we get,

$f(5)=-5$

Thus, the value of $f(5)$ is $f(5)=-5$

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3 years ago

What is the simplest form of

ASHA 777 [7]

Step-by-step explanation:

step 1. the cube root is also to the 1/3 power

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step 3. a third root: 3 factors in the root comes "out" of the root as 1

step 4. 3ab*b(b)^(1/3) = 3ab^2(b)^(1/3).

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3 years ago

AB contains the points A(7, -11) and B (8, 17) Find the slope of a line perpendicular to AB.

lesya692 [45]

The slope of the line containing the points is 28... we need the negative reciprocal of this for the slope of line perpendicular..

So the slope would be: choice B

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3 years ago