Ask question

Ask question

All categories

3 years ago

9

A fish tank that holds 80 gallons of water is 55% full. How many gallons are in the tank now? How many more gallons are needed t

o fill the tank?

1 answer:

nevsk [136]3 years ago

8 0

Answer:

31.6

Step-by-step explanation:

80 * .55 = 48.4 (Current amount of water)

80 - 48.4 = 31.6 (Needed amount of water)

You might be interested in

If the length of a rectangle is increased by 120 %, and its width is decreased by 20%,

Dima020 [189]

Let length of rectangle=x and width be y
.`. area=x*y
now new length=x+12x/10=22x/10
width=y-y/5=4y/5
now .....
new area=new length-new width=22x/10*4y/5
new area=88xy/50

7 0

3 years ago

Read 2 more answers

Which is the measure of line segment AB?<br> A)10 feet<br> B)15 feet<br> C)20 feet<br> D)100 feet

zavuch27 [327]

Find the last angle:
180-(30+90)
180-(120)
60

Evaluate using sine rule:
$\frac{c}{sinC}$ = $\frac{b}{sinB}$

c= $\frac{bsinC}{sinB}$

= $\frac{10sin90°}{sin30°}$

=20

The length of line segment AB is 20 feet (answer choice C)

5 0

2 years ago

Read 2 more answers

A new price of an item is $39.32. The percent increase was 16%. What was the original price?

Fiesta28 [93]

Answer:

let x =the original price

then 116x/100=$39.32

116x=100×39.32

116x=3932

divide both sides by 116

116x/116=3932/116

x=33.89655

(2dp)

x=33.90

4 0

2 years ago

Please explain how to find the simplest form of 7/28! I did it in 5th grade but forgot! Explain please.

Lapatulllka [165]

$\sf \frac{7}{28} = \frac{7 \times 1}{7\times 4}\\ We~can~divide~by~7~on~both~the~numerator~and~denominator\\\frac{7\times 1\div 7}{7\times 4\div 7} = \frac{1}{4}$

So in simplest form it would be 1/4

6 0

2 years ago

Read 2 more answers

A square has an area of 196 square centimeters. What is the length of each side?

kozerog [31]

Answer:

The answer is simply 49.

Step-by-step explanation:

196 ÷ 4 is why because their are 4 sides on a square if you divide it by 4 you get the answer 49. You're probably in like 3rd grade or smth this is so easy.

7 0

2 years ago