3 years ago

a 3D printer can print 5 phone cases in hundred and 50 minutes at this rate how many phone cases can be printed in 750 minutes

Mathematics

1 answer:

garik1379 [7]3 years ago

3 0

Answer:

It should be 25.

Step-by-step explanation:

If you divide 750 by 150 you get 5, then you multiply 5 by 5 and get 25.

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The student council had a canned food drive. They collected a total of 63 cans on wednesday. This is 21% of the total. How many

Naddik [55]

They collected 300 cans in all. I did this by multipying 63 by 100 (6300) then divided it by 21. I hope this helps!

6 0

3 years ago

how many pounds of candy worth $12 per pound should be mixed with candy costing $19 per pound to produce a 70 pound mixture that

sweet-ann [11.9K]

Answer:

40 pounds

Step-by-step explanation:

Given: Cost of a candy $(c_1)$ = $\$ 12$ per pound

Cost of candy $(c_2) = \$ 19\ per\ pound$

Total amount of mixture of be produced = $70\ pound$

Selling price of mixture = $\$ 15 \ per\ pound$

Let´s x be the amount of $c_1$ to be mixed in the mixture.

∴ Cost of $c_1$ in the mixture = 12x

Next, Cost of $c_2$ in the mixture = $(70 - x)\times 19$

And we know the cost of final mixture = $70 \times 15 = 1050$

Now, putting all the value in the equation

⇒ $12x + 19 \times (70 - x) = 1050$

⇒ $1330 - 7x = 1050$

⇒ $-7x = -280$

∴ $x = 40\ pound$

∴ 40 pounds of candy worth $12 per pound to be mixed in the mixture.

6 0

3 years ago

If sinθ = 12/13 and θ is an acute angle, find cotθ.

Tju [1.3M]

Answer:

cot(θ)=5/12

Step-by-step explanation:

(I'm going to replace theta with x to save time.)

Recall that sine is equal to opposite over hypotenuse. Thus:

sin(x)=12/13, this means that the opposite side is 12 while the hypotenuse is 13 (well, it doesn't have to be, but their ratios are).

Find the adjacent side using the Pythagorean Theorem.

13^2 = 12^2 + adj^2

adj^2 = 25

adj = 5.

Recall that tan(x) is opposite over adjacent. This means that cot(x) is adjacent is opposite.

Therefore: cot(x) = 5/12.

6 0

4 years ago

√x+3=x-3 <br> a-{6}<br> b-{6,13}<br> c-{1,13}<br> d-{1,6}

ipn [44]

Answer:

d-{1,6}

Step-by-step explanation:

See the picture section.

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2 years ago

Madison loves her stuffed dolphin toy. The toy is 27 inches long. If her brother came and sliced the dolphin in half what would

Alik [6]

The size of the dolphin would be 13.5 inches long because half of 27 is 13.5.

27/2 = 13.5

3 0

4 years ago

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