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inna [77]
3 years ago
7

Math proportions..............

Mathematics
1 answer:
gogolik [260]3 years ago
4 0
9/x = 25/100

cross multiple to get:

25x = 900

then divide to simply:

x=36
You might be interested in
Peter sells 10 wallets in 2 days. After 40 days how many wallets should be sold?
liubo4ka [24]

Answer:

200 Wallets

Step-by-step explanation:

If he sells ten in two days, let's just say he sells 5 a day. If you do the math, 40 days×5 wallets, you get 200.

4 0
4 years ago
Find the first four terms of each sequence. <br><br> F(n) = 3n - 1
timofeeve [1]

Answer:

2, 5, 8, 11

Step-by-step explanation:

F(n) = 3n - 1

put n=1

F(1) = 3(1) - 1 = 2

put n=2

F(2) = 3(2) - 1 = 6 - 1 = 5

put n=3

F(3) = 3(3) - 1 = 9 - 1 = 8

put n=4

F(4) = 3(4) - 1 = 12 - 1 = 11

5 0
3 years ago
a gallon of gasoline cost 30 cents in 1960 and $1.30 in 1980. what was the percent increase in the price of gasoline
hammer [34]
A gallon of gasoline cost 30 cents in 1960 an 
$1.30 in 1980
percent increase in the price = ?
first we have to convert cents into dollars so that both amounts have to be in same unit
30 cents = $0.3
increase in gasoline cost = $1.30 - 0.3 = $1
now for calculating percent increase divide this with the new amount and than multiply with 100
percent increase = ($1 / $1.30) x 100 = 76.92% = 77% approx.
so, there is 77% increase in the price of gasoline

5 0
3 years ago
Please help me and pls explain me how u got the answer
Evgesh-ka [11]

Answer: 8.55x10^13

Step-by-step explanation: 1.9 x 4.5 = 8.55  10^10 + 10^3 = 10^13

7 0
3 years ago
What percentage of Susan shopping tips are greater than $40?
7nadin3 [17]
Susan's Q1 is $40.  Therefore, 75% of her tips are greater than $40.
6 0
3 years ago
Read 2 more answers
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