To find the GCF, you find the prime factors that have a product of each number. Then, you can compare and see which numbers there are in common.
6=2x3
15=3x5
36=2x2x3x3
Here, the only common factor is 3, therefore the answer is b.
Question 1. Raquel sold 18 tickets since if you do 54-22-14 you would get 18
Question 2. 14+28= j since 14 is the number of beans his mother put in the bag and j is the total amount afterward
Question 3. The answer is 49, simply solve for x by subtracting 14 on both sides
Question 4. You can add 4 blocks to the right or take away 3 blocks from the left since they will then have an equal amount of blocks
Question 5. The answer is 27.6, like question 3 solve for x by subtracting 8.6 on both sides
Question 6. The answer is $8.18, do this by subtracting 3.87 and 5.95 from 18 and the remainder would be the cost of the magazine
Answer:
<em>Cathy was born in 1980 and she was 18 years old in 1998</em>
Step-by-step explanation:
<u>Equations</u>
This is a special type of equations where all the unknowns must be integers and limited to a range [0,9] because they are the digits of a number.
Let's say Cathy was born in the year x formed by the ordered digits abcd. A number expressed by its digits can be calculated as

In 1998, Cathy's age was

And it must be equal to the sum of the four digits

Rearranging

We are sure a=1, b=9 because Cathy's age is limited to having been born in the same century and millennium. Thus

Operating

If now we try some values for c we notice there is only one possible valid combination, since c and d must be integers in the range [0,9]
c=8, d=0
Thus, Cathy was born in 1980 and she was 18 years old in 1998. Note that 1+9+8+0=18
Answer:
18 and 335
Step-by-step explanation:
y = 18x + 11
x * y = 6030
x * (18x + 11) = 6030
18x^2 + 11x = 6030
18x^2 + 11x - 6030 = 0
(18x + 335)(x - 18) = 0
18x + 335 = 0 x - 18 = 0
18x = -335 x = 18
x = -335/18
x is gonna have to be a positive number...so x = 18
y = 18x + 11
y = 18(18) + 11
y = 324 + 11
y = 335
so ur numbers are 18 and 335
Answer:
B
Step-by-step explanation:
x is the value of x which you input into the function and f(x) is the actual function and therefore the output. so when x=3, f(x)= -2. f(3)=-2