I guess you mean 
. Since 
is in quadrant III, we expect 
. Then
Since 
is in quadrant I, we expect 
, so that
Now,
and
Answer:
Step-by-step explanation:
This problem lays out pretty clearly what needs to be done.
First, we know that we are writing an inequality.
Then, it tells us that we need 'the product of x and 7'. A product is the result of multiplication, so we can multiply 7 and x together to get 7x.
Next, it tells us that the product (7x) is at least 15. At least means that the product has to greater than or equal to 15. That clue tells us which inequality symbol will be used.
Put it all together and:
Hope this helped!
Answer: 11
Step-by-step explanation: As n goes up, ^an goes up 11 every time. If it was negative, the number would be going down as n went up.
It would take 5 weeks for their savings accounts to be equal.
Daniel starts with $50 and each week he adds $8. To find out the amount he has in any given week, the following formula would work:
= 50 + 8x
The x is the number of weeks and is multiplied by 8 because the amount of money he has increase by 8 every week.
After 4 weeks he would have:
= 50 + (8 * 4)
= 50 + 32
= $82
Saquon
Applying the same formula:
= 65 + 5x
After 4 weeks:
= 65 + (5 * 4)
= 65 + 20
= $85
Saquon has more money after 4 weeks.
Number of weeks it would take for both of them to have the same amount.
To find this out, equate both formulas and solve for x.
50 + 8x = 65 + 5x
8x - 5x = 65 - 50
3x = 15
x = 15/3
x = 5 weeks
At 5 weeks they will both have:
50 + 8 * 5 = $90
65 + 5 * 5 = $90
1 km = 1000m
so 4 km = 4(1000) = 4000 m
so Kali runs 4000 m per day
4000/400 = 10 laps per day
for 3 days = 3(10) = 30 laps for 3 days
