An even number between 7 and 16 could be 8, 10, 12, or 14. You know they are even number because they always end with a digit of 2, 4, 6, 8, or 0. Also it is divisible by 2. Just draw a number line.<span />
Answer:
d ≈ 6.41
Step-by-step explanation:
Given that F is inversely proportional to d² then the equation relating them is
F = ← k is the constant of proportion
To find k use the condition when F = 8, d = 6 , then
8 = = ( multiply both sides by 36 )
288 = k
F = ← equation of proportion
When F = 7 , then
7 = ( multiply both sides by d² )
d² × 7 = 288 ( divide both sides by 7 )
d² = ( take the square root of both sides )
d = ± ≈ ± 6.41
The positive value of d is 6.41 ( to 2 dec. places )
Answer:
the answer is 96
Step-by-step explanation:
- 9-3
100--3
100-1-3
96
Suppose Julia made x dollars in 2015, and Anna made y dollars.
in 2016, Julia made (x+30,000) and Anna made (y+10,000)
In 2016, after they paid 50% tax, they still had 80,000, which means before tax they had a total of 160,000, so
(x+30,000)+(y+10,000)=160,000
simplify: x+y=120,000
in 2015, Julia earned 20,000 more than Anna, so x=y+20,000. Plug it in the above equation: y+20,000+y=120,000
y=50,000
x=y+20,000=70,000
Julia made 70,000 dollars in 2015.