Answer:
-a^2 + -4a + 3a + 12
Step-by-step explanation:
FOIL
First terms: -a x a = -a^2
Outside terms: -a x 4 = -4a
Inside terms: 3 x a = 3a
Last terms: 3 x 4 = 12
Answer:
4
Step-by-step explanation:
12p=5d
1p=5/12
10p=4.1666
≈4 days
Since the question is asking for the no. of coins each, we can represent the numbers with variables.
number of quarters = x
number of dimes = 6x (because there as 6 times as many dimes as quarters)
Next we can multiply the variables by the value of each coin.
25x + 6(10)x = 1275
25x + 60x = 1275
(make sure the expressione quals 1275, not 12.75. A dime is not 10 dollars, nor is a quarter 25 dollars).
85x = 1275
x = 15
Now that we have the value for x, plug it back in.
Andrea has 15 quarters and 90 dimes.
Answer:
5 1/2
Step-by-step explanation:
Let's convert all the mixed fractions to complex fractions.
6/12 + 3/12 + 4/12 + 20/12 + 33/12
Add the fractions together
66/12
How many 12's go into 66?
5 12's go into 66.
5 6/12
Simplify
5 1/2
Answer:2x^3
Step-by-step explanation:
10x^3-12x^3
2x^3(5-6)
