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Over [174]
3 years ago
7

Question 13. thank You so much

Mathematics
1 answer:
Cloud [144]3 years ago
4 0
First thing we need is the volume of the fish tank. We simply multiply the three dimensions to get

V = L*W*H
V = 2.5*1*1.5
V = 3.75

The fish tank can hold 3.75 cubic feet of water if its completely full

-------------------------

We are told that "one cubic foot of water weighs about 62.4 pounds". 

So we have this ratio
1 cubic foot of water: 62.4 pounds

Multiply both sides of that ratio by 3.75 which was the volume of the fishtank

1 cubic foot of water: 62.4 pounds
3.75*1 cubic foot of water: 3.75*62.4 pounds
3.75 cubic feet of water: 234 pounds

The fishtank can hold 234 pounds of water

note: this is assuming that the walls are strong enough to withstand the pressure/weight of water without cracking or breaking

Answer: 234 pounds

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5x + 2 y = 7<br> 4x + y = 8
dsp73
4y.
Is the answer
Hope this helps
8 0
2 years ago
Recall the scenario about Eric's weekly wages in the lesson practice section. Eric's boss have been very impressed with his work
Solnce55 [7]

Answer:  

1)\quad f(x)=\bigg\{\begin{array}{ll}12x&0\leq x

2) D: x = [0, 24]

3) R: y = [0, 384]

4) see graph

<u>Step-by-step explanation:</u>

Eric's regular wage is $12 per hour for all hours less than 9 hours.

The minimum number of hours Eric can work each day is 0.

f(x) = 12x    for   0 ≤ x < 9

Eric's overtime wage is $18 per hour for 9 hours and greater.

The maximum number of hours Eric can work each day is 24 (because there are only 24 hours in a day).

f(x) = 18(x - 8) + 12(8)

    = 18x - 144 + 96

    = 18x - 48           for 9 ≤ x ≤ 24

The daily wage where x represents the number of hours worked can be displayed in function format as follows:

f(x)=\bigg\{\begin{array}{ll}12x&0\leq x

2) Domain represents the x-values (number of hours Eric can work).

The minimum hours he can work in one day is 0 and the maximum he can work in one day is 24.

D:  0 ≤ x ≤ 24        →        D: x = [0, 24]

3) Range represents the y-values (wage Eric will earn).

Eric's wage depends on the number of hours he works. Use the Domain (given above) to find the wage.

The minimum hours he can work in one day is 0.

f(x) = 12x

f(0) = 12(0)

     =  0

The maximum hours he can work in one day is 24 <em>(although unlikely, it is theoretically possible).</em>

f(x) = 18x - 48

f(24) = 18(24) - 48

       = 432 - 48

       = 384

D:  0 ≤ y ≤ 384        →        D: x = [0, 384]

4) see graph.

Notice that there is an open dot at x = 9 for f(x) = 12x

and a closed dot at x = 9 for f(x) = 18x - 48

6 0
3 years ago
What are the numbers that are divisible by three
faust18 [17]
The numbers divisible by 3 are multiples of 3.
6 0
3 years ago
Gustavo and yuki were asked to find an explicit formula for the sequence 19, 0, -19, -38...
KiRa [710]

Answer:

<h2>Neither Gustavo nor Yuki</h2>

Step-by-step explanation:

It's an arithmetic sequence.

0-19=-19\\-19-0=-19\\-38-(-19)=-38+19=-19

The difference is constant.

The explicit formula of an arithmetic sequence:

a_n=a_1+(n-1)d

Substitute:

a_1=19,\ d=-19

a_n=19+(n-1)(-19)             <em>use distributive property</em>

a_n=19-19n+19\\\\a_n=(19+19)-19n\\\\a_n=38-19n

4 0
3 years ago
What is the answer to this question ? 3a-4=5
Nataly_w [17]

Answer:

a=3

Step-by-step explanation:

a=3 because 5+4=9 and 9÷3=3

hope this helps!!

8 0
3 years ago
Read 2 more answers
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