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Delicious77 [7]
3 years ago
14

An open-topped fish tank has a length of 30 inches, width of 10 1/2 inches, and height of 12 inches. What is the volume of the w

ater in the tank if the tank is 3/4 filled?
A 945 in
B. 1,287 in
C. 2,835 in
D. 3,780 in​
Mathematics
1 answer:
Alexxx [7]3 years ago
3 0

Answer:

2835 inches cubed

Step-by-step explanation:  Volume equals all three sides multiplied by each other so 30*12*10.5=3780 in.   However because the tank is only 3/4 full you multiply 3780 by 3/4 to get 2835.

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What is the total weight in ounces of the four heaviest eggs?
Orlov [11]

Answer:

6 3/4 ounces

Step-by-step explanation:

4 0
3 years ago
Kris has finished 7/8 of 40 questions. how many were done​
VLD [36.1K]

7/8=0.875

0.875 x 40= 35

Therefore, Kris has finished 35 questions.

Hope this helps.

8 0
2 years ago
Maria thinks of a number double it and add 5 answer is 21 write as an equation in X and solve it to find Maria's number​
lys-0071 [83]

Answer:

The number is 8

Step-by-step explanation:

<em>2x +5 =21 </em>

2x= 21-5

2x=16

2x/2=16/2

x=8

To check

8×2=16

16+5=21

5 0
2 years ago
Read 2 more answers
Two wires are attached 6 feet up a tree and 3 feet from the base of the tree. About how much TOTAL wire was used?
nalin [4]

Answer:

9 cm²

Step-by-step explanation:

Two wires are attached 6 feet up a tree and 3 feet from the base of the tree. About how much TOTAL wire was used?

We solve the above question, using the Area of a Triangle

Area = 1/2 × Base × Height

Area = 1/2 × 3 × 6

Area = 9 cm²

Therefore, the total wore that was used was 9cm² of wire

3 0
3 years ago
Find the value of x.
Leona [35]

This is an isosceles triangle. Therefore, at the base we have congruent angles (look at the picture).

We have the equation:

(5x + 13)° + (3x + 7)° = 180°

5x + 13 + 3x + 7 = 180    <em>combine like terms</em>

(5x + 3x) + (13 + 7) = 180

8x + 20 = 180     <em>subtract 20 from both sides</em>

8x = 160      <em>divide both sides by 8</em>

<h3>x = 20</h3>

3 0
3 years ago
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