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Stels [109]
3 years ago
15

I'm so confused please help

Mathematics
2 answers:
vova2212 [387]3 years ago
7 0

Answer:

?

Step-by-step explanation:

Blizzard [7]3 years ago
7 0

Answer:

What do you need help with

Step-by-step explanation:

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Please help with this question p
Gemiola [76]

Answer:

160 cm²

Step-by-step explanation:

V = 1/3 * 24 * 20 = 160 cm²

4 0
2 years ago
Which one is greater -0.00001940 or 0.00005
Hunter-Best [27]
Second 1 because it isn't negative
7 0
3 years ago
Read 2 more answers
PLEASE WHAT IS THE AREA OF THIS HELP ME PLEASE
BARSIC [14]

Answer:

it should be 14,580 m^2

(the ^2 means squared btw)

7 0
3 years ago
Which pair of angles are supplementary? ​
PolarNik [594]

Answer: H

Step-by-step explanation:

Supplementary angles just mean they add up to 180 degrees. 180 degrees means that when the two angles are put together one of each of their sides will form a straight line.

6 0
3 years ago
How much of 30% HCI and 45% HCI would be needed to mix and produce 50 liters of 35% HCI
VladimirAG [237]

Answer:

  • 33 1/3 liters of 30%
  • 16 2/3 liters of 45%

Step-by-step explanation:

Let x represent the liters of 45% solution needed. Then the amount of HCl in the mix is ...

  0.45x +0.30(50 -x) = 0.35(50)

  0.15x = 0.05(50) . . . . . simplify, subtract 0.30(50)

  x = (0.05/0.15)(50) = 50/3 = 16 2/3 . . . liters of 45% HCl

33  1/3 liters of 30% and 16 2/3 liters of 45% HCl are needed.

_____

<em>Comment on the solution</em>

You may notice that the general solution to a mixture problem of this sort is that the fraction of the mix that is the highest contributor is ...

  (mix % - low %) / (high % - low %) = (.35 -.30) / (.45 -.30) = .05/.15 = 1/3

5 0
3 years ago
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