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3 years ago

15

On a recent survey, 40 percent of those surveyed indicated that they prefer lemonade or sweet tea. If 720 people preferred lemon

ade, how many people were surveyed?

1 answer:

Stels [109]3 years ago

6 0

The correct answer is 1800. If you divide 720 by 0.40, then you get the answer which is 1800.

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The ratio of girls to boys in grade 6 was 3:2 at Lincoln middle school last year. There were 60 kids in grade 6. How many in gra

olasank [31]

Answer:

40 girls 20 boys i think / guess

Step-by-step explanation:

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3 years ago

Please help! I have no idea how to do this.

dlinn [17]

11. y=-1/3x-4

Plug the slope into m in y=mx+b and then plug in your point and solve for b. You get C

12. Parallel means it has the same slope or the same m, so the -1/2 stays the same and you plug that and your point into the y=mx+b and solve for b again. You get D, y=-1/2x-9

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3 years ago

What linear function represents the line given by the point slope equation y+7= 2/3(x+6)?

aleksandrvk [35]

Answer:

The graph of the line in the attached figure

Step-by-step explanation:

we have

$y+7=\frac{2}{3}(x+6)$

This is the equation of a line into point slope form

The slope is $m=\frac{2}{3}$

The line pass through the point (-6,-7)

To graph the line find the y-intercept

Remember that

The y-intercept of the line is the value of y when the value of x is equal to zero

so

For x=0

$y+7=\frac{2}{3}(0+6)$

$y+7=\frac{2}{3}(6)$

$y+7=4$

$y=4-7=-3$

The y-intercept is the point (0,-3)

with the point (-6,-7) and (0,-3) plot the line

see the attached figure

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3 years ago

Find the inverse of the function and then determine whether the inverse is a function.

klemol [59]

as you already know, we start off by doing a quick switcheroo on the variables, and then we solve for y to get the inverse,

$\bf y=x^2+4\implies \stackrel{switcheroo}{x = y^2+4}\implies x-4=y^2\implies \pm\sqrt{x-4}=\stackrel{f^{-1}(x)}{y}$

and if you run a vertical line test on that expression, you'll find that it doesn't pass it, meaning is not a function.

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3 years ago

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nevsk [136]

Answer:

If you still need the answer I think it's B

Step-by-step explanation:

7 0

3 years ago

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