Prime numbers have only themselves and 1 as factors, like 7, and all other numbers are composite.
Answer:
Bailey family's sprinkler was used for 35 hours and Harris family's sprinkler was used for 20 hours.
Step-by-step explanation:
Set up a system of equations.
Let be "b" the time Bailey family's sprinkler was used and "h" the time Harris family's sprinkler was used.
Then:

You can use the Elimination method. Multiply the first equation by -15, then add both equations and solve for "h":

Substitute
into an original equation and solve for "b":

Answer:
the solution is x=(-2,7)
Step-by-step explanation:
you move the constant to the right and chnage its sign in that case that would be the -3
add the numbers
seperate them into 2 possible casses.
then solve.
so the solution is x=(-2,7)
i hope this helps...
Answer: 8,263
Step-by-step explanation: The number 8,263 lies between 8,260 and 8,270 on the number line. Label all the other tick marks between 8,260 and 8,270. Is 8,263 closer to 8,260 or 8,270 on the number line? Which hundred is 8,263 nearest to on the number line? Plot 8,200 and 8,300 on the two outermost spots on the number line below. Then plot 8,263 to prove your answer. Which thousand is 8,263 nearest to on the number line? Plot 8,000 and 9,000 on the two outermost spots on the number line below. Then plot 8,263 to prove your answer. 8,263 is closest to 8,260. In other words, 8,263 rounded to the nearest ten is 8,260. 8,263 is closest to 8,300. In other words, 8,263 rounded to the nearest hundred is 8,300. 8,263 is closest to 8,000. In other words, 8,263 rounded to the nearest thousand is 8,000.
Answer:
Slope-intercept form: y=-3x-2
Point-slope form: y+5=-3(x-1)
Step-by-step explanation:
Slope-intercept form is y=mx+b
Point-slope form is y-y1=m(x-x1)
The slope is (7-(-5))/(-3-1)=12/-4=-3
Now we solve for b, aka. the y-intercept:
-5=-3(1)+b
-5=-3+b
-2=b
So the equation in slope intercept form is y=-3x-2
As for point-slope form, it's y+5=-3(x-1)