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brilliants [131]
3 years ago
6

20 POINTS

Mathematics
1 answer:
adoni [48]3 years ago
3 0

Answer:

If 1 gallon = 16 cups, then 4 gallons = 64 cups. (16 x 4)

So if there are 4 gallons of water, then there are 64 cups. If 1 cup of water evaporates a minute then it will take 64 minutes for all the water to be gone.  

Answer: 64 minutes

OR

Answer: An hour and 4 minutes

Step-by-step explanation:

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How are the values of the eights related in 880?
tatuchka [14]
In the number 880, the first eight is ten times that of the second eight. This is the first way in which the 8’s are related to one another. The second way that the two 8’s are related is that is that if the both 8’s change their respective places, then also the number will remain the same. Since in this case the number in the tens place and the hundreds place are same, so interchanging them will not have any effect on the overall number.



7 0
3 years ago
Point A is located at (4, 1). Point B is located at (-3, 3). How did Point A move to Point B?
Marrrta [24]
I forgot but I used to know this one
6 0
3 years ago
Solve using the quadratic equation -4x² + 7x + 5 = 0​
Luda [366]

Answer:

x=-0.544727

x=2.294727

Step-by-step explanation:

Given quadratic equation to solve:

  • -4x²+7x+5=0

To solve, use the quadratic formula

x= -b ±  b² - 4ac / 2a

Substitute your values for a, b, & c and solve

x= -7 ± 7² - 4·(-4)·5 / 2·(-4)

x= -7 ± 49 - -80/-8

x= -7 ± 129/-8

Then, reduce the problem

x= -7/-8 ± 129/-8

x=-0.544727

x=2.294727

4 0
2 years ago
Andrea made a replica of the Empire State Building. The surface area of the model is 45 ft2. What is the surface area of the act
melamori03 [73]

Answer:

<u>87,120 ft²</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Surface area of the Empire State building replica = 45 square feet

Scale factor = 44

2. What is the surface area of the actual Empire State Building in square feet?

For answering the question, we will make the following calculations:

45 square feet = 9 feet * 5 feet or,

45 square feet = 10 feet * 4.5 feet, or,

45 square feet = 20 feet * 2.25 feet.

Now, let's apply the scale factor to all of these probable lengths of the sides of the surface area of the replica, as follows:

(9 *44) * (5 * 44) = 396 * 220 = 87,120 ft²

(10 * 44) * (4.5 * 44) = 440 * 198 = 87,120 ft²

(20 * 44) * (2.25 * 44) =  880 * 99 = 87,120 ft²

<u>As we proved, no matter what are the lengths of the sides of the surface area of the replica. after applying the scale factor, the result is the same: 87,120 ft²</u>

6 0
3 years ago
james has a job with a current salary of $42,000. he wants to earn a collage degree that will take him 2 years to complete and i
Alex777 [14]
It will take him ten years.
6 0
3 years ago
Read 2 more answers
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