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Artyom0805 [142]
3 years ago
6

How many times larger is 3 x 10^-5 than 6 x 10^-12?

Mathematics
1 answer:
vovikov84 [41]3 years ago
3 0
2X10^-7 I just put it in scientific notation. Just divide 6 x 10^-12 by 3 x 10^-5. 
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A boy at an amusement park has 65 ride tickets. Each ride on the roller coaster costs 7 tickets. After riding the roller coaster
d1i1m1o1n [39]

Answer:

The boy will have 2 tickets left.

Step-by-step explanation:

First you have to figure out how many times 7 goes into 65. As 65 is not a multiple of 7, you have to look for the closest number. In this case, 7*9=63. That is the closest number to 65 that is also a multiple of 7, so the boy can ride the roller coaster 9 times. Since the question is asking how many tickets the boy will have left, you simply subtract 65-63=2. So, the boy will have 2 tickets left.

Hope this helped :)

8 0
2 years ago
A piece of cloth costs birr 200. If the piece was 5m longer and the cost of each metre of cloth was birr 2 less ,the cost of the
Paha777 [63]

The length of the original piece of cloth was <u>20 meters</u>.

The cost of per meter cloth initially was <u>birr 10 per meter</u>.

In the question, we are given that a piece of cloth costs birr 200.

Also, we are told that if the piece was 5m longer and the cost of each meter of cloth was birr 2 less, the cost of the piece would have remained unchanged.

We are asked to find the length of the cloth piece and what is its original price per meter.

We assume the initial length of the cloth to be x meters.

The cost of the cloth is given to be birr 200.

Thus, the per meter cost of the cloth initially was birr 200/x per meter,

In the new case, we are given that:

The piece was 5 meters longer.

The initial length = x m.

The new length = x + 5 m.

The cost of each meter of cloth was birr 2 less.

The initial cost of each meter of cloth = birr 200/x per meter.

Thus, the new per meter cost = birr 200/x - 2 per meter = birr (200 - 2x)/x per meter.

Thus, the cost of the piece = birr (x + 5)(200 - 2x)/x.

Now, we are given that the cost of the piece in both cases is the same, which can be shown as:

(x + 5)(200 - 2x)/x = 200,

or, 200x + 1000 - 2x² - 10x = 200x,

or, x² + 5x - 500 = 0,

or, x² + 25x - 20x - 500 = 0,

or, x(x + 25) - 20(x + 25) = 0,

or, (x - 20)(x + 25) = 0, which gives that:

Either x - 20 = 0 ⇒ x = 20,

or, x + 25 = 0 ⇒ x = -25.

Since x cannot be negative, x = 20.

Thus, the length of the original piece of cloth was x meters = <u>20 meters</u>.

The cost of per meter cloth initially was birr 200/x per meter = <u>birr 10 per meter</u>.

Learn more about costs at

brainly.com/question/13964154

#SPJ9

8 0
2 years ago
Plz answer this now anyone
vladimir1956 [14]

Answer:

your answer is 5.

Step-by-step explanation:

plz give brainliest

4 0
3 years ago
A scale model of a human heart is 196 inches long. The scale is 32 to 1. How many inches long is the actual heart? Round your an
Svet_ta [14]
If the scale is 32 to 1, that means it is 32 times bigger than the actual thing. So if the model is 196 inches long, then the actual heart is 196/32 inches long. This equals 6.125.

Answer, rounded to the nearest whole number: 6 inches.
3 0
3 years ago
》》what is democratic country?~~​
nika2105 [10]

Answer:

A democratic country has a system of government in which the people have the power to participate in decision-making. ... In some democracies citizens help make decisions directly by voting on laws and policy proposals (direct democracy).

8 0
3 years ago
Read 2 more answers
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