Answer:
<u>The</u><u> </u><u>requ</u><u>ired</u><u> </u><u>num</u><u>ber</u><u> is</u><u> </u><u>7</u><u>0</u><u>.</u>
Step-by-step explanation:
let the no. be 10y + x where x is unit digit and y is ten's digit.
given , sum of the digit is 7
x + y = 7 ...(1)
also , reversing the no. we get 10x + y ,where x is ten's digit and y is unit digit.
given reversed digit decreases the number by 63 .
so, 10y + x - ( 10x + y ) = 63
9y -9x = 63
( dividing both side by 9 )
y - x = 7 ....(2)
adding 1 and 2 [ refer attachment ]
so the required original number is
10y + x = 10×7+0 = 70
Answer:
195
Step-by-step explanation:
I would tackle this question with cross multiplying.
x 65
--- = ------
300 100
The 300 is the price the customer will pay and x is the amount Jill bought it for. Because Jill wants a 35% markup, that means she is willing to pay 65% what her customers will pay (100-35=65). so we put the 65 over 100 on the other side of the equals sign and cross multiply it out.
100x=19500
Divide both sides by 100 and you get
x=$195
So your answer is: The most Jill Roe can pay for a bedspread is $195.
I think 12 minutes because if you take 9 divide it by 3/4 you get 12
Answer:
3.5
Step-by-step explanation:
the sqr root of 4 is 2
the sqr root of 3 is 1.5