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inysia [295]
3 years ago
7

Micah is preparing for a piano recital. He practices for 50 minutes on Monday and 90 minutes on Wensday

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
6 0

Answer:

She increased 80% the practise time

Step-by-step explanation:

The question is incomplete, the following is missing:

<em>by how much did she increase the time she practised each day? </em>

From Monday to Wednesday she increased 90 - 50 = 40 minutes  the practise time.

To compute the increment as a percentage use: increment/reference *100

In this case, that is: 40/50*100 = 80%, where 50 minutes is taken as a reference.

melamori03 [73]3 years ago
4 0

Answer:

80%

Step-by-step explanation:

i took the quiz

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What is the expression in radical form? (5ab)3/2
andrew11 [14]

It would be a  x/n = n      √a^x  

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3 years ago
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Robert collected 330 aluminum cans. If 100 aluminum cans weigh 4 pounds, and the recycling center is paying 25 cents a pound, ho
labwork [276]
First, determine the weight of 330 cans with the given conditions,
                    (330 cans) x (4 lbs / 100 cans) = 13.2 lbs
Then, the price is determined by multiplying this weight to the price that the recycling center is paying,
                         (13.2 lbs) x (25 cents / lb)  = 330 cents = $3.3
Thus, Robert will be paid $3.3. 
4 0
3 years ago
What equals 39% of 120
frosja888 [35]

Answer:

46.8

Step-by-step explanation:

The equation is: 0.39 times 120=x

0.39 x 120= 46.8

29% of 120 is 46.8

4 0
2 years ago
Read 2 more answers
The sum of the roots of x² + 6x - 55 = 0 is: <br> A. 6 <br> B. -6 <br> C. -55
lana66690 [7]

Answer:

B

Step-by-step explanation:

the sum of the roots = - \frac{b}{a}

x² + 6x - 55 = 0

with a = 1 , b = 6 , then

sum of roots = - \frac{6}{1} = - 6

4 0
2 years ago
Select the correct answer.<br> Which graph shows the solution region of this system of inequalities?
ELEN [110]

Since the values on both sides are different, hence graph of option C is correct.

<h3>What is inequality?</h3>

Inequality is defined as the relation which makes a non-equal comparison between two given functions.

Solutions to inequality graphs

Inequalities are an equation that does not include only the equal sign.

The system of inequalities are;

y \geq 2(1.3)^x\\\\y\leq -x^2 + 4x + 5

The first function is an exponential function.

Since the values on both sides are different, hence graph of option C is correct.

Learn more on inequality here:

brainly.com/question/12089993

#SPJ1

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2 years ago
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