Solution:
we are given that
The federal budget for 2007 was 2.8 trillion dollars.
we have been asked to find
how much money did the government spend per second?
First we will find the number of seconds in one year
Number of seconds in 1 year
Seconds
Now we will dive the amount by the total number of seconds, we get

Hence the government is spending approximately 88787 dollars per second.
Answer:
t= -9
Step-by-step explanation:
Answer:
Step-by-step explanation:
area=15×9+1/2×6×9
=135+27
=162 m²
Answer:
6000mg.
Step-by-step explanation:
1g = 1000mg
Multiply the mass value by 1000
.
6 x 1000 = 6000
= 6000mg
First you'll need two equations ( you can use any variables you want)
A= photo group 1
B= photo group 2
First equation:
A + B = 33
This is because the total number of photos from both groups is 33
Second equation:
4A = 7B
This is because the ratio is 4:7 so for every four photos in group A there must be 7 photons in group B.
Then take the first equation A + B = 33 and subtract B from both sides. Making the equation A = 33 - B
Then with that equation, substitute it in for equation 2 and it will look like this. 4(33-B) = 7B
Then distribute the 4 to the 33 and the -B making the equation 132 - 4B = 7B
Then add 4B to each side
Making the equation 132 = 11B
Then to get B by itself you must divide each side by 11 making the equation 132/11 = B which simplifies to 12 = B
Then plug in 12 for B in the first equation like this A + 12 = 33
Then subtract 12 on each side of the equation to isolate A so A = 21
So
A = 21
B = 12