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DochEvi [55]
3 years ago
10

5

Mathematics
1 answer:
Sergio039 [100]3 years ago
8 0
The answer is b (12)
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formula for glue says to add 45ml of hardener to each container of resin. how much hardener should be added to 18 containers of
Novay_Z [31]
45ml per container, you have 18 of these containers.
Multiply 45 by 18 to get the answers.
That should be 810 ml of hardener.
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3 years ago
A delivery truck is transporting boxes of two sizes: large and small. The combined weight of a large box and a small box is 85
insens350 [35]
First, "boxes of two sizes" means we can assign variables:   Let x = number of large boxes        y = number of small boxes   "There are 115 boxes in all"    means    x + y = 115      [eq1] Now, the pounds for each kind of box is:     (pounds per box)*(number of boxes) So,   pounds for large boxes     +    pounds for small boxes      =    4125 pounds                  "the truck is carrying a total of 4125 pounds in boxes"          (50)*(x)                   +              (25)*(y)                  = 4125    [eq2] It is important to find two equations so we can solve for two variables. Solve for one of the variables in eq1 then replace (substitute) the expression for that variable in eq2.  Let's solve for x:    x = 115 - y          [from eq1]      50(115-y) + 25y = 4125             [from eq2]      5750 - 50y  + 25y = 4125           [distribute]      5750 - 25y = 4125       -25y = -1625          y = 65             [divide both sides by (-25)]   There are 65 small boxes. Put that value into either equation (now, which is easier?) to solve for x:   x = 115 - y   x = 115 - 65   x = 50    There are 50 large boxes.
3 0
3 years ago
in class of 40 students report that english is their favorite class 40 percent of the students report that keyboard is there fav
olasank [31]
If 40% of students prefer keyboarding, 40/100*40=16 students like it best. If the remaining students prefer English, then 40-16=24 students like English best. Since 24 is more than 16, most students prefer English.
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3 years ago
What's y in: 21y=(-205) +75+47y
Alenkinab [10]
The Answer Is A Fraction y= 151/47
6 0
3 years ago
Read 2 more answers
The graph shows the temperature of coffee while it cools.
DaniilM [7]

Answer:

10 Minutes

Step-by-step explanation:

At roughly 10 minutes, the y-axis meets a point at the x-ais that can be shown as (40,10)

6 0
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