Answer:
23/54
Step-by-step explanation:
<h3>
Answer :</h3>
==============
<h3>
Solving Steps:</h3>
===============
<u>breakdown</u>
<u>factor common term</u>
<u>collect in groups</u>
<u>apply difference between two square method:</u> x² - y² = (x+ y)(x-y)
<u>simplify</u>
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
Answer:
12.
Square root = 37,
Step-by-step explanation:
40^2 = 1600
35^2 = 30 * 40 + 25 = 1225
So the requred square is between 35 and 40
38^2 = 1444
37^2 = 1369 - so its this one.
Required difference = 1381 - 1369 = 12.
