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2 years ago

Need help on number 12 not 11 plz help

Mathematics

2 answers:

lara31 [8.8K]2 years ago

7 0

A is the correct answer.

If raw material is %30 ($480) than the 2 %15 have to equal $480 also. So you have $480 and $480 to get $960 than your %40 should equal $640. All of those added together equal 1,600.

telo118 [61]2 years ago

5 0

A is the correct answer

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The total cost of producing a type of tractor is given by C(x)=11000−20x+0.02x2, where x is the number of tractors produced. How

marissa [1.9K]

Answer:

Step-by-step explanation:

You need to complete the square.

C(x) = 0.02(x^2 - 1000x ...) + 11000

C(x) = 0.02 (x^2 - 1000x + 500^2) + 11000 - 5000

C(x) = 0.02 (x^2 - 1000x + 500^2) + 6000

C(x) = 0.02(x - 500)^2 + 6000

Now if you look at the answer you will find that the square is completed. That means that number of tractors you could produce is 500 at a cost of 6000

There is a flow to this question that you may have trouble understanding.

First of all the 500^2. That comes from taking 1/2 of 1000 and squaring it. That's what you need to complete the square.

Bur that is not what you have adding into the equation. Remember that there is a 0.02 in front of the brackets.

500^2 = 250000

0.02 * 250000 = 5000

So that number must be subtracted to make the square = 0. When you remove the brackets, you should get 11000 all in all.

So what you have outside the brackets is 11000 - 5000 = 6000

The rest is just standard for completing the square.

5 0

2 years ago

Polly stacked the tins from five boxes of cat food onto an empty shelf in a supermarket. There were 15 tins of cat food in each

Alexandra [31]

Answer:

(a) $3\frac{2}{3}$ boxes of cat food had been sold.

(b) $\frac{11}{3}$ boxes of cat food had been sold.

Step-by-step explanation:

From the question,

Polly stacked the tins from five boxes of cat food onto an empty shelf and there were 15 tins of cat food in each box. That is,

5 × 15 tins of cat food were stacked onto the empty shelf.

5 × 15 = 75

Hence, 75 tins of cat food were stacked onto the empty shelf.

Also, from the question,

At the end of the week there were 20 tins left on the shelf and the rest of the tins had been sold, that is

75 - 20 tins had been sold

75 - 20 = 55

Hence, 55 tins of cat food had been sold.

To determine the number of boxes of cat food that had been sold,

Since there are 15 tins of cat food per box, then

we will divide 55 tins of cat food that had been sold by 15 tins of cat food per box

55 ÷ 15 = $\frac{55}{15}$

Hence, $\frac{55}{15}$ boxes of cat food had been sold

(a) As a mixed number

$\frac{55}{15} = 3\frac{2}{3}$

Hence, $3\frac{2}{3}$ boxes of cat food had been sold.

(b) As an improper fraction

$\frac{55}{15} = \frac{11}{3}$

Hence, $\frac{11}{3}$ boxes of cat food had been sold.

7 0

3 years ago

Determine whether the following functions are even, odd, or neither.

nirvana33 [79]

F(x) = 4.x2 +1 is the answer.

3 0

3 years ago

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

mr_godi [17]

Answer:

They are neither parallel nor perpendicular.

it isn't parallel because they cross

it's not perpendicular because they don't cross at a 90 degree angle

Step-by-step explanation:

Hope this helps you and btw u should download desmos it's an amazing calculator that graphs these things for you!!! hope u have a wonderful day and stay safe and healthy:)))

3 0

2 years ago

This figure has two intersecting lines and a ray.

Minchanka [31]

Answer:

Value of x is 90°

Step-by-step explanation:

Why?Imagine it as a shape of circle.

Circle has a measurement total of 360°

Semi cirlcle(half of the circle) is equivalent to 180

Now,

The bottom semi circle has a 146°

The top has a 56°

You can simply compute it by subtracting them.

$146 - 56 = 90$

3 0

3 years ago