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AysviL [449]
3 years ago
10

Find the percent of increase from 40 gallons to 89 gallons. Round to the nearest tenth of a percent if necessary.

Mathematics
1 answer:
tiny-mole [99]3 years ago
3 0

Answer:

50

Step-by-step explanation:

because 89-49=49 49 rouded to the nearest ten is 50

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A SCHOOL IS PLANNING A FIELD TRIP. THERE ARE A TOTAL OF 611 STUDENTS AND 91 SEATS ON EACH BUS. HOW MANY BUSES ARE NEEDED TO TAKE
algol [13]

Answer:

About 7 buses.

Step-by-step explanation:

What you do is you will divide 611 by 91 to find your answer.

<em>611/91=6.714</em>

You will round up because the 7 is greater than 5.

About 7 buses.

7 0
3 years ago
A cone has a diamete of 3 inches the cone hold 12 cubic inches of water to the nearet inch what is the height of the cone
Andre45 [30]

Volume for a cone is 1/3 pi * r^2*h, where r is radius and h is height. We have diameter = 1/2 radius. Thus, radius = 1.5in. We also have volume is 12 in. Using formula for volume of a cone and plugging in what we know, we have 12 = 1/3*pi*(1.5)^2*h, were solving for h. To get, h= (12*3)/(pi*(1.5)^2), which is approximately 5.0931in, 5 inches




8 0
4 years ago
(x+7)^2+9=0<br><br> Find x with quadratics
Ne4ueva [31]

Answer:

x = -7 ±3i

Step-by-step explanation:

(x+7)^2+9=0

Subtract 9 from each side

(x+7)^2+9-9=0-9

(x+7)^2=-9

Take the square root of each side

sqrt((x+7)^2) = ±sqrt(-9)

We know sqrt(ab) = sqrt(a) sqrt(b)

x+7 = ±sqrt(-1) sqrt(9)

We know that sqrt(-1) is the imaginary number i

x+7 = ±i *3

x+7 =±3i

Subtract 7 from each side

x+7-7 = -7 ±3i

x = -7 ±3i

6 0
3 years ago
Read 2 more answers
If you place a 17-foot ladder against the top of a 8-foot building, how many feet will the bottom of the ladder be from the bott
Goshia [24]

Answer:

15 feet

Step-by-step explanation:

This problem involves using the Pythagorean theorem, since the figure made with the ladder, building, and ground would make a right triangle. You are given the values 17ft and 8ft, which is enough to plug into the Pythagorean theorem.

The ladder, 17ft, would be the longest side (hypotenuse). The 8ft building would be one of the legs of the right triangle.

1. Plug your given values correctly into the Pythagorean Theorem.

a^{2} + b^{2} = c^{2}

8^{2} + b^{2} = 17^{2}

2. Now solve for b, which is your unknown distance (the distance the bottom of the ladder is from the bottom of the building).

8^{2} + b^{2} = 17^{2} --> Square 8 and 17

64 + b^{2} = 289 --> Subtract 64 from both sides

b^{2} = 225 --> Square root both sides to get b by itself

b = 15

3. The distance is 15 feet

*Note: to make solving this problem easier, try drawing out the given situation, namely the building and the ladder

7 0
3 years ago
Which pair of numbers is opposite? Select all that apply
Mandarinka [93]
6 and -6 |-6| and -6
4 0
4 years ago
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