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Phoenix [80]
3 years ago
15

You bought some new fish and need the tank ready. You fill the tank with water and start running the filter system.You check the

temperature of the water after 2 hours and notice the water is 78 degrees Fahrenheit. You need the temperature to be at 72 degrees Fahrenheit. after three additional hours and the water temperature is at so, you add the fish. What was the temperature when you first filled the tank?
Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0

Answer:

82 degrees

Step-by-step explanation:

It took 3 hours for it to go from 78 to 72.

Which is a rate of -2 degrees per hour

We want to know what the temperature was two hours before it was 78 degrees so we'd do 78 - (-2) which is 82

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Which is true about measurements in manufacturing? POSSIBLE ANSWERS: Product quality is not affected by size. Size is not advers
GaryK [48]

Answer:

A. Product quality is not affected by size.

Step-by-step explanation:

This statement is true because the quality of a product is not a measure of its size, which is a quantifiable factor. This means that we can have a very small-sized product which has very good quality. Size also depends on the product being manufactured. Quality is rather measured by how good the materials used in the production are.

If inferior materials are used in the production, then the product, no matter how small or big they are, would lack quality. To obtain a good and accurate measurement, a lot of time and energy should be invested.

5 0
3 years ago
A planet's initial height is 7 inches tall . The plant grows 1.3 inches each day for 27 days before the plant falling over 0.5 i
hodyreva [135]

Answer:

40.6 inches

Step-by-step explanation:

The plant's initial height is 7 inches tall.

It grows 1.3 inches each day for 27 days. This means that after 27 days, it must have grown an extra:

1.3 * 27 = 35.1 inches

It must have grown an extra 35.1 inches after 27 days. Therefore, its new height after 27 days is:

7 + 35.1 = 42.1 inches

The plant then begins falling over 0.5 inch for the next 3 days. After 3 days, it must have fallen over by a height:

0.5 * 3 = 1.5 inches

Therefore, after 30 days, the plant's new height is:

42.1 - 1.5 = 40.6 inches

The plant's height after 30 days is 40.6 inches

7 0
3 years ago
The equation 7.50(n+0.2)=189 can be used to model the number of books, n , maggie orders. How many books does maggie order?
Reptile [31]
N= number of books

7.50(n + 0.2)=189
multiply 7.50 by each term in parentheses

(7.50*n) + (7.50*0.2)= 189
7.50n + 1.5= 189
subtract both sides by 1.5
7.50n= 187.50
divide both sides by 7.50
n= 25

ANSWER: She ordered 25 books.

Hope this helps! :)
4 0
3 years ago
Write a polynomial equation of degree 3 such that two of its roots are 2 and an imaginary number.
vagabundo [1.1K]
X^3 - i(x)^2 - 4x + 4i ....
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3 years ago
(3x+4)(x-2)<br> A.3x^2-2x-8<br> B.x-8<br> C.3x-2x-8<br> D.3x^2+2x+8
vlada-n [284]

Answer:

A

Step-by-step explanation:

im smart ツ

5 0
3 years ago
Read 2 more answers
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