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mrs_skeptik [129]
2 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]2 years ago
7 0

Answer:

Step-by-step explanation:

60 problems

mariarad [96]2 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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Negative 120 divided by 15
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-120 ÷ 15 = -8.

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1 year ago
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Casey deposited $1,450 in a bank account with an interest rate of 4% How much simple interest was earned in two years? Is the an
pantera1 [17]

Answer:

The simple interest was earned is $116

Yes; the answer is $116

Step-by-step explanation:

- The rule of the simple interest is:

→ <em>I = P r t</em>, where I is the interest, P is the money invested, r is the rate

of interest in decimal, and t is the time of investment

- Casey deposited $1,450 in a bank account with an interest rate of 4%

- We need to find the amount of interest Casey earned in two years

- The interest is simple

∵ P = $1450

∵ r = 4% = 4/100 = 0.04

∵ t = 2 years

∵ The interest is simple

∴ <em>I = Prt</em>

- Substitute the values of P , r , t in the rule

∴ I = 1450 × 0.04 × 2 = 116

∴ <em>The simple interest was earned is $116</em>

* <em>Yes; the answer is $116</em>

7 0
2 years ago
Each locker is shaped like a rectangular prism. Which has more storage space? explain/
seropon [69]
Locker 1 has more storage space because it has a greater volume.
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2 years ago
A right triangle has one angle that measure 23o. The adjacent leg measures 27.6 cm and the hypotenuse measures 30 cm.
hammer [34]
I dont think this may be right but i think it is 401

5 0
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so
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7.6%

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2 years ago
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