Answer:
x = -(8 - 3 y)/y
Step-by-step explanation:
Solve for x:
y = 8/(3 - x)
y = 8/(3 - x) is equivalent to 8/(3 - x) = y:
8/(3 - x) = y
Take the reciprocal of both sides:
(3 - x)/8 = 1/y
Multiply both sides by 8:
3 - x = 8/y
Subtract 3 from both sides:
-x = (8 - 3 y)/y
Multiply both sides by -1:
Answer: x = -(8 - 3 y)/y
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:
61/125 or 0.488
Step-by-step explanation:
Total = 5×5×5 = 125
Numbers with no 4 = 4×4×4 = 64
Atleast one 4= 125-64 = 61
P(atleast one 4) = 61/125 or 0.488
The second option: “Keep track of the number of heads flipped in 50 flips. These represent the number of females born today.”
One flip represents one baby born, and one head represents a female birth, so the total number of heads out of 50 flips simulates finding the ratio of females in a sample of 50 births.
Answer:
2.873375
Step-by-step explanation:
