Set it up algebraically
3 times a number so 3x where x = the mystery number
times 7 so 3x*7
and it equals 63 so,
3x*7=63
this can be further simplified to
21x=63
then just divide both side by 21 to get your answer
(21/21)x=(63/21)
so x=3
Put x-7 in the box and that should wor
Answer:
- Set A = { 5, 25, 15, 35 }
- the set of multiples of 5
Step-by-step explanation:
Words to describe the set:
A set can also be described by just defining it using plain words. For example, the set A= {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday} can be described using words like “the set of days of the week”. Another example can be “the set of months of the year”.
5/3 is greater improper fraction comes out to 1 2/3
Y = 3x^2 + 7 is the equation of the parabola
