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4 years ago

What is 42 decreased by twice some number

Mathematics

1 answer:

valkas [14]4 years ago

4 0

Well 21 + 21 = 42 , but I don't know if I understand your question correctly.

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A manufacturer wishes to make tee-shirts for the band Dixie Chicks. They sell for $15 each. She must deliver all the tee-shirts

iogann1982 [59]

Answer:

M = 3000n(20 - n) dollars.

Step-by-step explanation:

Given that, each machine sets up in one day.

Therefore, n number of machines will take n days to set up.

Now, there are 20 days' time to deliver all the t-shirts.

And the machines are turned on after all the n machines are set up.

So, all the n machines will work for (20 - n) days and producing each machine 200 shirts in one day, then one machine will produce 200(20 - n) number of t-shirts and n machines will produce 200n(20 - n) number of t-shirts in the remaining (20 - n) days.

Now, the selling price for each t-shirt is $15.

Therefore, the total amount of money M she will receive will be, M = 15 × 200n(20 - n) = 3000n(20 - n) dollars. (Answer)

5 0

3 years ago

Which is the equation of a parabola with Vertex (0, 0) and directrix y = 4?

Luba_88 [7]

We know that

<span>Vertex (0, 0) and directrix y = 4

is a vertical parabola------> open down (directrix above the vertex)
the equation is of the form
(y-k)=4p(x-h)</span>²--------> y=4p*x²-------> vertex (0,0)

y=4
y=h-p-----> y=-p
p=-4

the equation of the parabola is
y=-16x²

the answer is
y=-16x²

see the attached figure

5 0

3 years ago

1 27 points from 35 points.

pishuonlain [190]

Answer:

127 from 35

127 - 35

Step-by-step explanation:

6 0

3 years ago

HELP PLS :(

Kipish [7]

Answer:

I believe it's linear

Step-by-step explanation:

don't quote me on that tho

6 0

3 years ago

George Washington was born on 2-22-1732. He died in 1799 at the age of 67. The month in which he died and the day of the month o

Nina [5.8K]

Answer:

George Washington died on December 14th, 1799

Numerical with the arrangement: month - day - year

12 - 14 - 1799

Step-by-step explanation:

In the question, we are told that: the month in which he died and the day of the month on which he died are consecutive even integers whose product is 168.

Therefore,

If one positive even integer = Month he died is represented by x

The second consecutive even integer = Day he died = x + 2

Their product =

x ( x + 2) = 168

x² + 2x = 168

x² + 2x - 168 = 0

We factorise

x² + 14x - 12x - 168 = 0

(x² + 14x) - (12x - 168) = 0

x(x + 14) - 12(x + 14) = 0

(x - 12)(x + 14) = 0

x - 12 = 0, x = 12

x + 14 = 0 , x = -14

Our answer cannot be a negative interger, hence x = 12

So the first positive even integer = 12

The second positive even integer = x+2 = 12 + 2 = 14

Therefore, the month he died = n = 12th month = December

The day he died = n + 2 = 14 = 14th day.

Hence, George Washington died on December 14th, 1799

Numerical with the arrangement: month - day - year

12 - 14 - 1799

4 0

3 years ago