Answer:
For packages of 8: She will need 13 packages
For packages of 12: She will need 9 packages
Step-by-step explanation:
Number of Barbecue sandwiches = 100 (given)
For packages of 8 we have, (100/8) = 12 (without the remainder)
We then add one extra package so that the 100 barbecue sandwiches are served.
So, for packages of 8, package of barbecue buns = 12 + 1 = 13
For packages of 12 we have, (100/12) = 8 (without the remainder)
We then add one extra package so that the 100 barbecue sandwiches are served.
So, for packages of 12, package of barbecue buns = 8 + 1 = 9
You need to substitute y for the 40 km/hr.
So -4x + 3(40) = 15
-4x + 120 = 15
-4x = 105
x = 26.25 sec
Answer:
its positive
Step-by-step explanation:
because the line going upward
Answer:
there are several ways to write, and find slope...see explanation
Step-by-step explanation:
Way 1: slope Intercept- y=mx+b
step 1: find where the line crosses the Y axis(the one running up and down...thats is your "b" so if the line crosses at -2...it would be this: y=mx-2
Step 2:from the point where the line crosses the Y axis, count how many up/down and Left/right to the next point..so if you go up 2 right 1, it would look like this y=2x-2
Up=positive
down=negative
left=negative
right=positive
Answer:
5r + 2
Step-by-step explanation:
9r-5r+2+r=5r+2
\mathrm{Group\:like\:terms}
=9r-5r+r+2
\mathrm{Add\:similar\:elements:}\:9r-5r+r=5r
=5r+2
