20% of a number is 1/5th of it so 50 × 5 is 250
Answer:
9) Choice D 10) 7.368 x 10^6
Step-by-step explanation:
9) 299,792,458
D=300,000,000 = 3.0 x 10^8
10)
(7.4 x 10^6) - (3.2 x 10^4)
7400000 - 32000 = 7,368,000 = 7.368 x 10^6
Answer:
r = ( q -16)/6
Step-by-step explanation:
In order to rearrange the equation so that r is the independent variable is the same thing as making r the subject of the formula from the given expression
q-10= 6(r+1)
we say,
q - 10 = 6r + 6 ( by using 6 to open the bracket)
we are going to collect the like terms
q- 6r = 6 + 10
q- 6r = 16
q = 16 + 6r
q-16 = 6r
divide both sides by the coefficient of r which is 6
(q-16)/6 = 6r/6
r = ( q -16)/6
Answer: C
we know the ratio 45:45:90 and x:x:x root of 2
in this case 8 is x root of 2
so,
other sides are 8/ root of 2
hence,
we get 4 root of 2
Figured what out
a question