First of all, lets ask ourselves how we are going to get Mary's marbles. In the problem, we can see that Joan has 15 times as many marbles as mary. So this means that Mary's marbles are multiplied to 15 in order to get Joan's marbles (which happens to be 45). So if we reverse the situation, then in order to get Mary's marbles, you are going to have to divide Joan's marbles by 15. Since we know that Joan has 45 marbles, we divide that by 15. The answer is 3. Mary has a total of 3 marbles.
Answer:
its c
Step-by-step explanation:
because on the x value it has the same numbers so its repeating
The answer is A. x³ - x² - 17x + 12.
To multiply a binomial by a trinomial, we multiply each term in the first polynomial by each term in the second polynomial.
Multiplying the first term then the second term of the first polynomial by each term in the second polynomial, we now have
(x+4)(x² - 5x + 3) = x³ - 5x² + 3x + 4x² - 20x + 12
Combining like terms to simplify and get the product equal to:
(x+4)(x² - 5x + 3) = x³ - 5x² + 4x² + 3x - 20x + 12
= x³ - x² - 17x + 12
A: 5+5+6=11 units
B. You can find the height by dividing the traingle into 2 right traingles with 5 being the hypotenuse and 3 being one of the legs.
5^2=3^2+x^2
25=9+x^2
16=x^2
x=4
Area= 6*4/2= 12 units^2
C. 12*6=$72
Larger number = X
Smaller number = 1/2X
X + 1/2X = 60
Simplify:
1 1/2x = 60
Divide both sides by 1 1/2:
x = 40
The numbers are 20 and 40