Given:
20 ounces of water
someone finishes 55% of water
What is left?
20 × 0.55 (55% =
= 0.55)
11
20 - 11 = 9
There are 9 ounces of water left
You need to add two mixed numerals.
One is positive and one is negative.
To add a positive number and a negative number, first take the absolute value of both, making them both positive. Then subtract the smaller absolute value from the larger absolute value. Finally, the sign of the answer is the same sign as the number that has the larger absolute value.
The numbers are -4 5/8 and 2 1/8
Take absolute values:
|-4 5/8| = 4 5/8
|2 1/8| = 2 1/8
Subtract the smaller absolute value from the larger absolute value.
4 5/8 - 2 1/8 = 2 4/8 = 2 1/2
The greater absolute value is 4 5/8.
Since the number with the larger absolute value was -4 5/8, a negative number, the answer is negative, -2 1/2
-4 5/8 + 2 1/8 = - 2 1/2
Answer:
<h2>BC = 39</h2>
Step-by-step explanation:
Use the Pythagorean theorem:
We have
Substitute:
1)
A)
f(x) has a slope of +5 (change with each x step), g(x) of +2 (m of y=mx+b), so f(x) rises 2.5 times faster than g(x)
B)
y intercepts are at x=0
f(x) has its intercept at -10
for g(x) it is the b value of y=mx+b, so 8
so the g(x) intercept is greater/above the one of f(x)
2)
A)
y intercept is at x=0 -> 12
When we started measuring the bird was already 12 miles away from its nest.
B)
average rate=(f(3)-f(1))/(3-1)
=16/2=8 [mph]
The bird moved on average with a speed of 8mph away from the nest.
C)
f(x)=8x+12
insert the 172 miles distance:
172=8x+12
160=8x
20=x
so after 20 hours it would be at a distance of 172 miles
this means we know the value from x=0 to 20 so its domain is/it is defined for x values of [0,20]
3)
A)
f(2)=225
f(5)=480
calculate slope m:
m=(f(5)-f(2))/(5-2)=(480-225)/3=255/3=85$/day
b=f(0)=f(2)-2*m=225-2*85=55
y=85x+55
B)
f(x)=85x+55
C)
Your x label is the amount of days rented, the y label the total cost/rent to pay, because y has larger values decide on some scale and the range of x values you want to draw, which should be x>=0.
Draw the points which were given, (2,225) and (5,480) and draw a line through them from one end of the diagram to the other.
Use the distance formula ! Hope this helped :)
