Y=5x+11 using the point-slope formula and simplifying
Let’s take fred age as x and Natalie’s age as y.
So,
A/Q
X + Y = 43. Let it be eqution 1
and
X + 4Y = 79. Let it be equation 2
Combining equation 1 and 2, we get
( X + Y) + 3Y = 79
43 + 3Y = 79
3Y = 36
Y = 12
Now, evaluating the value of Y in equation 1 we get,
X + 12 = 43
X = 31
Therefore, Fred is 31years old and Natalie is 12 years old.
Answer:
.
Step-by-step explanation:
Over this interval, the change in the value of this function is:
.
The corresponding change in the value of 
:
.
The average rate of change of function 
over this interval is equal to the change in the function value divided by the corresponding change in :
.
Thus, the average rate of change of 
over the interval ![[-5,\, 2]](https://tex.z-dn.net/?f=%5B-5%2C%5C%2C%202%5D)
would be .
1.05*prevous month total or
Starting balance * 1.05^n where n is the number of months
Answer:
70/100
Step-by-step explanation:
Surface of the earth covered with water = 7/10
Equivalent fraction of 7/10 with 100 as the denominator = 70/100
This means 70% of the earth surface is covered with water
Percentage covered with land = Total percentage - percentage covered with water
= 100/100 - 70/100
= 100-70/100
= 30/100
Percentage covered with land = 30%
