The sum of a number and 6% of itself is 42.4. find the number

40

Step-by-step explanation:

6% of number = 6/100 × x = 6x/100 = 3x/50

Sum of the number and 6% of itself = 42.4

x + (3x/50) = 42.4

(50x+3x)/50 = 42.4

53x = 42.4 × 50

53x = 2120

x = 2120/53

x = 40

The answer is  x = 40

Step-by-step explanation:

6% of a number is 6/100 * x

Of means multiply.

so 6% of x =    6/100 * x =    6 * x / 100 =    0.06x

Now just put these two together.

x + 0.06x = 42.4    Combine the left

1.06x = 42.4           Divide by 1.06

x = 42.4 / 1.06

x = 40

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

homozygous. one is homozygous, while two is heterozygous.