Okay. So, the amount was previously $5 per 1,000. The price has gone up to $5.90. That’s a 90 cent change from the previous 5 dollars. To find the percent of change, we have to do change/original. 0.90/5 is 0.18. Multiply that by 100 to get 18. The percent increase to the nearest whole number is 18%.
The answer is B) or y = -4x + 160
If her initial weight is 160 pounds, then you must subtract 4x, representing how much weight she lost over time, to find her current weight y
But, since y = 160 – 4x isn't an option, we can reverse to negatives as long as you change the addition/subtraction sign
So, subtracting positive 4x is the same as adding -4x
Therefore, y = 160 – 4x is the same as y = -4x + 160
This will solved using the concept of proportionality:
(height of the cliff)/(height of the pole)=(base of the cliff)/(length from base of pole to the rope)
thus, let the height of the cliff be x, plugging the values in the formula we obtain:
x/6=86/7
hence solving for x we get
x=(86×6)/7
x=73.71 ft
Answer:
A or C. Pretty sure it's A though.
Step-by-step explanation:
:)
We assume the two numbers are x and (x+1)
so x^2+(x+1)^2=421
x^2+(x^2+2x+1)=421
2x^2+2x-420=0
According to the formula of quadratic
x=14 or-15
cuz we know the two numbers are integers
so x=14
therefore the other number is 15
To make sure that's correct
14^2+15^2=421
Hope that helps you!!
