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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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The answer is D because the temperature between 7:00 am and 9:00 am is decreasing by 5 

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Simplify the following:
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Step-by-step explanation:

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2 years ago
Which of the following is equal to the rational expression when x*-2 or 3?<br> X^2 +5x+6<br> X^2-X-6
trasher [3.6K]

Answer:

Step-by-step explanation:

x=-2, x=3

---------------

x^2+5x+6=(-2)^2+5(-2)+6=(-2)(-2)-10+6=4-10+6=-6+6=0

x^2+5x+6=3^2+5(3)+6=9+15+6=24+6=30

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x^2-x-6=(-2)^2-(-2)-6=4+2-6=6-6=0

x^2-x-6=3^2-3-6=9-3-6=6-6=0

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7 0
3 years ago
The girls tennis team was interested in raising funds for an upcoming trip. The team sold tumblers for $10 and sun hats for $5
gtnhenbr [62]

The equations that can be used are 10T + 5S = 190 and T + S = 30.

<h3><u>Equations</u></h3>

Given that the girls tennis team was interested in raising funds for an upcoming trip, and the team sold tumblers for $10 and sun hats for $5, and when the sales were over, the team had earned $190 and sold 30 total products, which included a mix of tumblers and hats, to determine which equations can be used to represent the situation, the following calculations must be made:

  • T + S =190
  • -It cannot be used because it has any relationship with the price of the products.

  • 10T + 5S = 30
  • -It cannot be used because it only considers the quantity variable.

  • T + S = 30
  • -It can be used as it shows the amount of products sold.

  • 10T + 5S = 190
  • -It can be used because it relates the total price to the quantity of each product.

  • T + S = 15
  • -It cannot be used because it only considers the price variable.
  • 5T + 10S = 190
  • -It cannot be used because it erroneously relates the price of each product.

Therefore, the equations that can be used are 10T + 5S = 190 and T + S = 30.

Learn more about equations at brainly.com/question/26511270.

5 0
2 years ago
Read 2 more answers
PLSSSS HELPPPPPPPPPPPPPPPPPP
MArishka [77]

Answer:

\huge\boxed{\sf Option \ 1}

Step-by-step explanation:

People surveyed = 42

People who approved = 25

<u>So, the sample is:</u>

25 residents who approve.

<u>And population:</u>

42 residents surveyed.

\rule[225]{225}{2}

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2 years ago
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