Aratio of laptops to tabelets in the stock room of a store is 13: 17. if there are a total of 90 laptops and tabelets in the stock room, how many laptops are in the stock room?

Hello, the answer to this problem is 1170/17, 68.823529, or ≈69 laptops.

To solve this, I will tell an easy thing. Ratios are the same as fractions. So, you can layout an equation like this: 13/17 = x/90. You are trying to find x, the amount of laptops. You can do a thing called cross multiply. For example, a/b = c/d. Cross multiply: a > d, b > c. In this case, cross multiplying would get you 17x = 1170.

x = 1170/17 or 68.823529

So, the answer is 1170/17, 68.823529, or ≈69 laptops.

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step-by-step explanation:

first i did work 2nd i did work and 3rd i did work

(a) common ratio in the given sequence is, 3

(b) push ups will do kendall do on the 20th week

step-by-step explanation:

geometric sequence is a sequence of numbers that follows a pattern were the next term is found by multiplying by a constant called the common ratio(r)

(a)

given the sequence: 6 , 18 , 54 , 162 ,

this sequence is geometric sequence where each term is 3 times the previous term.

therefore,

common ratio(r) = 3.

(b)

a formula for nth term of geometric sequence is given by;

,   where r is the common ratio between the successive terms and is the first term,

to find how many push ups will kendall do on the 20th week.

here. n = 20th term.

in the given sequence first term

then;

simplify:

therefore, push ups will do kendall do on the 20th week