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2 years ago

(System of inequality word problem.)

Mathematics

1 answer:

lana66690 [7]2 years ago

8 0

Answer:

Step-by-step explanation:

Because nintendo price=300$

He has 215$

1 chore he does=7$

Meaning if he did 10 chores he get's 70$ added so he did 10 now he has 285$ If he does 2 more chores that is 14$ more added.

So he now has 299$ so he done 12 chores and he needs 1 more dollar so if he did 1 more he gets 306$ and that was the least amount of chores he could do if he wanted 300$

And there's your answer

Hope this helps have a awesome day:)

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Would you need to use the chain rule to find the derivative of this function?

Nutka1998 [239]

Answer:

TRUE. We need to use the chain rule to find the derivative of the given function.

Step-by-step explanation:

Chain rule to find the derivative,

We have to find the derivative of F(x)

If F(x) = f[g(x)]

Then F'(x) = f'[g(x)].g'(x)

Given function is,

y = $\sqrt{2x+3}$

Here g(x) = (2x + 3)

and f[g(x)] = $\sqrt{2x+3}$

$\frac{dy}{dx}=\frac{d}{dx}(\sqrt{2x+3}).\frac{d}{dx} (2x+3)$

y' = $\frac{1}{2}(2x+3)^{(1-\frac{1}{2})}.(2)$

= $(2x+3)^{-\frac{1}{2}}$

y' = $\frac{1}{\sqrt{2x+3}}$

Therefore, it's true that we need to use the chain rule to find the derivative of the given function.

8 0

3 years ago

Paula weeded 40% of her garden in 8 minutes. How many minutes will it take her to weed all of her garden?

Anton [14]

So do

Part=percent*whole

6 0

3 years ago

Read 2 more answers

Tutorial C<br> A 3-yard roll of aluminum foil costs $4.14. What is the price per<br> foot?

Marta_Voda [28]

Answer:

$.46 or 46 cents per foot

Step-by-step explanation:

3 yards = 4.14

1 yard is 3 feet

3 yards is 9 feet

4.14 ÷ 9 = .46

5 0

2 years ago

Please help !! I would really appreciate it. brainliest will be given for best answer

faltersainse [42]

Since A is (-7,-4) and C is (7,3) for the x value from a to c is 14 for the y value from a to c is 7

Do 14 x 2/7 which is 4

Do 7 x 2/7 which is 2

then add (-7+4,-4+2) which is (-3,-2)

7 0

3 years ago

Arthur Jackson can run 1,500 meters in about 3 1/2 minutes. How many meters per minute is this?

Nimfa-mama [501]

(1500 meters) / (about 3.5 minutes) =

(1500/about 3.5) (meters/minute) =

<em>about 428.6 meters/minute</em>

6 0

3 years ago