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RUDIKE [14]
3 years ago
15

Math question down below

Mathematics
2 answers:
Sholpan [36]3 years ago
5 0
5(x + 30) 

x + 30 represents the number of minutes per day he practices
5 is the number of days he practices
so 5(x+30) = the total number of minutes he practices in 5 days

For example, if he practices the piano for 20 minutes per day and the violin for 30 minutes per day, he practices a total of 50 minutes per day. For 5 days that would be 5 x 50 = 250 minutes in 5 days.

Plug that into the equation
5(x+30) = 5(20+30) = 5(50) = 250 




lianna [129]3 years ago
3 0
5(x + 30) is another way to calculate
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diamong [38]
We solve the question as follows:
Simple interest=Principle×Rate×Time
Thus given:
p=$55000, R=2.5%, time= 1 year
thus
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The buying power lost will be the difference between your required interest and actual interest.

Thus:
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8 0
3 years ago
What would the answer be for this equation 7x/20 - 5x/12
polet [3.4K]

Answer:

\frac{1}{15} x

Step-by-step explanation:

\frac{7x}{20}  -  \frac{5x}{12}

\frac{3 \times 7x}{3 \times 20}  -  \frac{5 \times 5x}{5 \times 12}

\frac{21x}{60}  -  \frac{25x}{60}

\frac{21x - 25x}{60}  = (21 - 25)x =  - 4x

\frac{ - 4x}{60}  =  -  \frac{ x}{15}

\boxed{\green{=  \frac{1}{15} x}}

4 0
2 years ago
Suppose a bank customer’s savings account balance grows at a steady rate. Which type of function would best represent the balanc
elena-s [515]

Answer:

A) Linear function

Explanation:

grows at a steady rate.

7 0
2 years ago
An instructor of a large college class gave an exam that has a possible total of 100 points. The instructor records the scores o
pishuonlain [190]

Answer:

(a) the median grade lies between 76 and 84

(b) the Median grade is greater than the mean grade.

(d) the median grade is a B

Step-by-step explanation:

consider the histogram carefully and answer.

4 0
3 years ago
Can someone please help me with this question
earnstyle [38]
7/3 + 3/4
 28/12 + 9/12+ 37/12= 3 1/12

FInal answer is 3 1/12
4 0
3 years ago
Read 2 more answers
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