Let x be the digit in the tens place and y be the digit in the ones place.
so, the digit is xy
<span>
The ten's digit of a two digit number is 1 more than 4 times the units' digit.
</span>x = 4y + 1
<span>63 is subtracted from the number, the order of the digits is reversed
</span>10x + y - 63 = 10y + x
9x - 9y = 63
x = 4y + 1 ------------ (1)
9x - 9y = 63 ---------- (2)
Sub (1) into (2)
9(4y + 1) - 9y = 63
36y + 9 - 9y = 63
27y = 63 - 9
27y = 54
y = 2 ------- sub into (1)
x = 4(2) + 1 = 9
x = 9, y = 2
The number is 92
Answer:
15 Smoothies were made yesterday
Step-by-step explanation:
30 * 50% = 15
divide 4480 by 40
And for the 1760 ft multiply that twice
Answer:
The mathematical statement can be written as follows
which has solution as
⇒ 
Step-by-step explanation:
Given:
Two thirds of a number decreased by 27 is at least 9.
This statement can be transformed into a mathematical statement.
Taking the unknown number as 
and putting the inequality 
as the result is at least 9.
So, we have
Adding 27 both sides
Multiplying both sides by 3.
Dividing both sides by 2.
∴
