Start with a proportion, to get the number of degrees in 30 seconds:
(150 degrees / 5 seconds) = ('D' degrees / 30 seconds) .
Cross multiply the proportion: (150 x 30) = 5 x D
4,500 = 5 x D
Divide each side by 5 : 900 = D
The globe turns 900 degrees in 30 seconds.
How many rotations is that ?
Each rotation is 360 degrees.
So 900 degrees is
(900 / 360) = <em>2.5 rotations</em> in 30 seconds.
Answer:
5 word problems(4points each) & 10 open (3 points each)
Step-by-step explanation:
O= open response
W= word problems
W+O =15
4W + 3O = 50
multiply the first by -3 to eliminate O
-3W -3O = -45
4W + 3O = 50
AD BOTH
W = 5 ( 5 questions word problems)
O= 10 ( 10 questions open response)
5x4 = 20
10x3 = 30
20 + 30 = 50 points
Answer:
Part 1) The product of 3 and 2y-4x=8 is 
Part 2) The original equation in slope intercept form is 
Part 3) The new equation in slope intercept form is 
Step-by-step explanation:
we have

step 1
Find out the product of 3 and 2y-4x=8
Multiply both sides by 3

Apply distributive property both sides

step 2
Find out the original equation in slope intercept form
The equation of the line in slope intercept form is

we have

Solve for y
That means ----> Isolate the variable y
Adds 4x both sides

Divide by 2 both sides

Simplify

step 3
Find out the new equation in slope intercept form
The equation of the line in slope intercept form is

we have

Solve for y
That means ----> Isolate the variable y
Adds 12x both sides

Divide by 6 both sides

Simplify

Answer:
2x+9
Step-by-step explanation:
You have to combine like terms. 2x stays the same because there are no other like terms, but 5, 2, and 2 can be added together to make 9
Answer:
10 hrs
Step-by-step explanation:
4.12/2 = 2.06 hrs / person