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Scrat [10]
2 years ago
14

The mean of 4 numbers is 19. What would the new mean be if the number 30 is added to the data set?

Mathematics
1 answer:
german2 years ago
8 0

Answer:

B 21.2

Step-by-step explanation:

Im not sure at all tho. But I hope this helps :/

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Mary stated that 2.01 x 10⁶ is less than 4.8 x 10⁴ because 2.01 is less than 4.8. what was mary's mistake ?
katrin [286]

Answer:

Step-by-step explanation:

Scientific notation is always written as a number between 1 and 9.9999999 repeating. There follows a power of 10. I'm not sure which answer would help you see it clearer but

4.8 * 10^4 the decimal is shifted 4 places the right which is 48000 where you have no numbers, you use zeros.

2.01 * 10^6 means that you shift the decimal 6 places to the right.

2010000

So 2 million is larger than 48 thousand.

The other way to do it is just to look at the power. 6 is more than 4. 6 describes the number of places you move. So does 4. 6>4 so that's the larger number.

4 0
3 years ago
A given line has the equation 10x + 2y = −2.
Gekata [30.6K]
Y = -5x + 12 since the slope of that line is -5x and in order to pass through that point the y intercept must be 12
7 0
4 years ago
Read 2 more answers
The area of the triangle is ____ (rounded to the ones place) inches squared
Rzqust [24]

Answer: 27.7 square inches.

Step-by-step explanation:

Let 'a' be the side of equilateral triangle.

Then the perimeter of the triangle = a+a+a=3a

Given: Perimeter of the equilateral triangle = 24 inches                                                          We know that the area of a equilateral triangle is given by :-

4 0
3 years ago
A veterinary clinic saw 45 pets on Monday. The shaded squares in the grid below represent the 60% of pets
Black_prince [1.1K]
Answer: 27 dogs were seen at the clinic on monday.

27/45 = 0.6

0.6 = 60%
3 0
2 years ago
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If 4 pairs of socks costs $10. 00, how many pairs of socks can be purchased for $22. 50?.
klasskru [66]
9 pairs.

If 4 pairs of socks cost $10.00 and you have $22.50 to spend then you can buy 9 pairs of socks leaving you with $0.00 left over.
Each pair of socks cost $2.50.
5 0
2 years ago
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