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Rzqust [24]
3 years ago
8

A music app charges $2 to download the app plus $1.29 per song downloaded. Write and solve a linear equation to find the total c

ost to download 30 songs
Mathematics
1 answer:
Gennadij [26K]3 years ago
6 0

Answer:

1.29(30) +2

Step-by-step explanation:

First you do 1.29 times 30 that equals 38.7. Then you do 38.7 + 2 and you get 40.7. This means that the total cost is $40.70.

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3 years ago
Rewrite the expression without using grouping symbols: y • 4 + y • z
exis [7]

Answer:

y(4 + z)

Step-by-step explanation:

Here in this problem, we have to rewrite the expression y • 4 + y • z without using the grouping symbols.

Now, we can assume that '•' symbol here represents the multiplication symbol.

So, there are two parts of the expression and in both of the parts, y is multiplied. Hence, we can take common y from both parts.

So. y • 4 + y • z = y(4 + z).  

Therefore, option c matches the result. (Answer)

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Katen [24]
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7 0
2 years ago
A number is 2 /5 times another number. Their sum is 70. Find the numbers.
julsineya [31]

Answer:

50,20

Step-by-step explanation:

let the two numbers be x and y respectively.

According to the question,

y=2/5 times of x

Or,

y= 2x/5 ..........(1)

Again,

or, x+y=70

or, x+2x/5=70

or, (5x+2x)/5=70

or, 7x=350

therefore x=50

putting the value of y in equation (1)

y=2x/5

y= (2×50)/5

therefore, y=20

8 0
3 years ago
Read 2 more answers
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