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Fantom [35]
3 years ago
12

Lin and Jen each thought of a number. Lin thought of a 2-digit number. Jen’s number is 7 times as big as Lin’s. But, if Lin writ

es 0 between the digits of her number, she’ll get Jen’s number. What are the numbers?
Mathematics
1 answer:
FromTheMoon [43]3 years ago
6 0
The numbers are 15 and 105.

Lin thought a two digit number that is 15, if we multiply 15 with 7 , 15 x 7 = 105 that is we get Jen's number.
and if we put 0 between the two digits of Lin's number, we also get Jen's number;
that is 105.

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What is the means-to-MAD ratio of the two data sets, expressed as a decimal?
vlada-n [284]
Data set 1: 14,15,17,18,21 
mean: (14+15+17+18+21)/5 = 85/5 = 17
mad
17-14 = 3
17-15 = 2
17-17 = 0
17-18 = 1
17-21 = 4 

(3+2+0+1+4)/5 = 10/5 = 2

17/2 = 8.5 is the means-to-mad ratio

Data set2: 15,16,17,20,22
mean = (15+16+17+20+22)/5 = 90/5 = 18
mad
18 - 15 = 3
18 - 16 = 2
18 - 17 = 1
18 - 20 = 2
18 - 22 = 4

(3+2+1+2+4)/5 = 12/5 = 2.4

18/2.4 = 7.5 means to mad ratio
5 0
3 years ago
Find the surface area of the composite solid.
kicyunya [14]
Area of the bottom triangle = 1/2 x 10 x 8.7 = 43.5 cm²

Area of the 3 rectangles = 3(10 x 6) = 180 cm²

Area of the top triangle = 3 (1/2 x10 x 4) = 60 cm²

Total surface are = 43.5 + 180 + 60 = 283.5 cm²

Answer: 283.5 cm²
6 0
4 years ago
when 256 is multiplied by a positive power of 10 number of zeros in the product is related to the power of 10 explain how the nu
Anna [14]

Answer:

If you multiply 256 by 10 powered by k, then the number of zeros in the product is k

Step-by-step explanation:

Let x be any integer, if you multiply x by 10 you will have to add one zero at the right of x. If you multiply by 10 again, you will have to add a second zero at the right, thus if you multiply by 100, you will have to add 2 zeros. If you multiply by 1000 = 10*10*10 = 10³ you will have to add 3 zeros and so on.

Therefore, if you multiply 256 by 10^k, then you will have to add k zeros to 256, and as a consequence, the amount of zeros in the product is equal to the power of 10 we are multiplying.

7 0
3 years ago
Trisha needs to make at least 50 gift bags for an event. Each gift bag will contain at least 1 thumb drive or 1 key chain. She w
bezimeni [28]

Answer: answers B and E and C are correct





5 0
3 years ago
Read 2 more answers
How to convert the equation<br><img src="https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7Bq%7D%7B5%20%7B%7D%5E%7Bx%7D%20%7D%20" id
polet [3.4K]

Answer:

xlog 5 = logq - log y\\

Step-by-step explanation:

Given the equation y = \frac{q}{5^{x} }, to convert to linear form, the following steps must be followed;

5^{x} = \frac{q}{y}\\  y5^{x}  = q\\taking\ the\ log\ of\ both\ sides\\log(y5^{x}) = log q\\logy + log 5^{x} = log q\\log y + xlog5 = log q\\xlog 5 = logq - log y\\

The final expression is a linear form of the expression

8 0
4 years ago
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