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Oxana [17]
3 years ago
6

Is this right?......

Mathematics
2 answers:
masya89 [10]3 years ago
5 0
No It Is A Square pyramid
Kitty [74]3 years ago
4 0
No, the correct answer is square pyramid
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if my goal is 27,729,350 and i get 150 closer every minute and 15 seconds how long is it going to take me to get to my goal
oksano4ka [1.4K]

Answer: 13,864,675 seconds

Step-by-step explanation:

I minute 15 seconds = 75 seconds

That means it takes 75 seconds to achieve 150 , and it takes x seconds to achieve 27,729,350. Interpreting this in proportion form , we have:

150 ------ 75 seconds

27,729,350 ------- x seconds

Then

150x = 27,729,350 X 75

150x = 2,079,701,250

x =  2,079,701,250 / 150

x = 13,864,675

That means it takes 13,864,675 seconds to achieve the goal , converting this to minutes, we have:

231,077.9 minutes

5 0
2 years ago
A collection of quarters and dimes is worth $14.90. There are 80 coins in all. Find how many of each there are in the collection
sashaice [31]

The trick here is to relate the NUMBER of coins to each other in one equation, and then the VALUE of the coins in another equation. If I have 1 dime, that 1 dime is worth 10 cents. The number of dimes is obviously not equal to the value. Let's call quarters q and dimes d. The number of these 2 types of coins added together is 80 coins. So q + d = 80. Now, we know that quarters are worth .25 and dimes are worth .1, so we express a quarter's worth as .25q; we express a dime's worth as .1d. The value of the coins we have is 14.90. So that equation is .25q + .1d = 14.90. Let's solve the first equation for q. q = 80 - d. We can now use that as a substitution for q into the second equation, giving us an equation with only 1 unknown, d. .25(80-d) + .1d = 14.90. Distributing through the parenthesis we have 20 - .25d + .1d = 14.90. Combining like terms gives us - .15d = - 5.1. We will divide both sides by - .15 to get that the number of dimes is 34. If we had a total of 80 coins, then the number of quarters is 80 - 34, which is 46. 46 quarters and 34 dimes

7 0
3 years ago
Question 3 jane takes a survey of 100 random students at her school about their eye color. the results are shown in the chart be
qwelly [4]
Can i have the chart please?????
8 0
3 years ago
Solve using elimination 3x-4y=-14 and 3x+2y=-2 <br> (2,2)<br> (-2,-2)<br> (-2,2)<br> (2,-2)
Yuliya22 [10]

Answer: (-2,2)

Step-by-step explanation:

3x-4y=-14

2(3x+2y=-2)

3x-4y=-14

6x+4y=-4

9x=-18

x=-2

3(-2)-4y=-14

-6-4y=-14

-4y=-8

y=2

7 0
3 years ago
(Brainliest question) Which type of study best describes the following research most likely to be done? A researcher is trying t
drek231 [11]

Answer:

Observational study

Step-by-step explanation:

  • See the researcher visits the forest.
  • She want to experience or observe the forest fire.
  • She want to observe how it affects the animals.
  • Hence it's observational study
8 0
2 years ago
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