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mrs_skeptik [129]
3 years ago
9

mary is preparing for her college entrance exams. in a practice test, she answered 12 problems in 30 minutes. at this rate, how

many questions can she expect to answer in 150 minutes?? (proportional reasoning)....
Mathematics
2 answers:
Rasek [7]3 years ago
7 0

Answer:

Step-by-step explanation:

60 problems

mariarad [96]3 years ago
3 0
12 problems = 30 minutes
24 problems = 60 minutes
36 problems= 90 minutes
48 problems = 120 minutes
60 problems = 150 minutes 

Mary can respond 60 problems in 2 hours and 30 minutes/ 2 hours and half/ 150 minutes.

Hope this helps xx
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- 4x + 8y = 20<br> ----4x + 2y = -30
snow_tiger [21]

Answer:

40

Step-by-step explanation:

5 0
3 years ago
Help got to get this done ASP or I will not be able to test tommrow and I will get a F this is worth a 100 points so please help
Archy [21]
This is what I got. Good luck!

7 0
3 years ago
Read 2 more answers
Help ASAP<br>10 POINTS<br>find surface area and volume​
Arte-miy333 [17]
Cylinder (A):
-Surface area: adding all areas of all faces of the shape.

*10 x 6= 60m^3
*3.14 x 3^2 = 28.274 m^2. Then We times it by 2 since we have 2 circles. Which equals to 56.55m^2

Total surface area: 60 + 56.55 = 116.55m^2

-Volume: 3.14 x r^2 x h, then substitute.

*3.14 x 3^2 x 10 = 282.74m^3

(B):
-surface area:

*7 x 11= 77
*5 x 11 = 55
*11 x 11 = 121
*7 x 5 = 35/2 = 17.5 > then again we times it by 2 cuz we have 2 triangles. Which equals to 35.

Total surface area: 77 + 55 + 121 + 35 = 288 cm^2

-Volume:
*7 x 5 x 11 = 385 cm^3

Make sure to check the units!!!
Hope this helped :)
3 0
3 years ago
Please answer this thank you.
Nikitich [7]

11: 4,874 > 4,784 > 4,687

12: 8.09 > 8.057 > 8.023

13: 15.820 > 15.280 > 15.000

14: 43,628 > 40,628 > 34,628

15: 395.050 > 395.009 > 395.005

8 0
3 years ago
The coordinates of a point on a coordinate grid are (−2, 6). The point is reflected across the x-axis to obtain a new point. The
cluponka [151]
The reflection across the x-axis only change the signal of the y coordinate. Hence, the new point is P'(-2,-6).
4 0
3 years ago
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