If we use x for the number of dimes, and y for the number of nickels, then from this problem we know:
x(.10)+y(.05)=1.50
since each dime we have is another .10 dollars, and each nickel is another .05 dollars, as well as
3x=y
since we have 3 times as many nickels, we have to multiply dimes by 3 to have the same number of coins.
plugging this in to the first equation we get:
x(.10)+3x(.05)=1.50
.1x+.15x=1.5
.25x=1.5
x=6
Sally has 6 dimes.
Plugging this back in to 3x=y, we get
3(6)=y
18=y
So, Sally has 18 nickels
Answer:
19.7%
Step-by-step explanation:
Given that,
In 2000, the world population was 6.1 billion.
In 2015, the world population was 7.3 billion.
We need to find the percentage increase in population. The percent increase in this case is given by :
So, the increase in population is 19.7%.
Answer: D
<u>Step-by-step explanation:</u>
End behavior is determined by two factor:
1. Coefficient - determines right side:
- If the leading coefficient is POSITIVE, then right side goes to +∞
- If the leading coefficient is NEGATIVE, then right side goes to -∞
2. Degree - determines left side:
- If degree is EVEN, then left side is SAME as right side
- If degree is ODD, then left side is OPPOSITE of right side
******************************************************************************************
-x³ + 2
Leading coefficient is NEGATIVE, so right side goes to -∞ (decreases)
Degree is ODD, so left side is opposite of right side → goes to +∞ (increases)
Answer:
c
Step-by-step explanation:
its more oval
Answer:
199.12
Step-by-step explanation:
24.89
x 8.00
----------
199.12
