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Komok [63]
3 years ago
12

a blank CD can hold 70 minutes of music. So far, you have burned 25 minutes of music onto the cd. You estimate each song lasts 4

minutes. what are the possible numbers of additional songs that you can burn onto the cd?
Mathematics
2 answers:
Olegator [25]3 years ago
7 0
To start with, work out how many minutes you have left on the disk. 70-25= 45
Then, as you know each song is about 4 minutes long, divide 45 by 4 = 11.25
Obviously, you don't want a quarter of a song, so round it down to the whole number = 11 additional songs left to download.
Hope this helps! :)
zubka84 [21]3 years ago
4 0
So 70 minus 25=45
45/4=11 because you can't burn 1/4 of a song on the disk
so 11 songs
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Greeley [361]

The answer is 8 batches of cookies

4 0
3 years ago
I understand the equation, it's just not working out. Can anyone help me figure it out? Thanks in advance.
andreyandreev [35.5K]
You put the 15x + 100 on the angle CEB instead of CED. If you put it in the right spot, it should work out fine since they are vertical angles.
4 0
3 years ago
For the inequality, decide whether the solution is represented by x <2.5 OR x >2.5. -25 > -5(x+2.5)
omeli [17]

To solve the inequality -25 > -5(x + 2.5), first multiply -5 by the number and variable in the parentheses.

-25 > -5x - 12.5

Now add 12.5 to both sides of the equation.

-25 + 12.5 > -5x - 12.5 + 12.5

-12.5 > -5x

Now divide -12.5 by -5 to get the answer.

-12.5 ÷ -5 is 2.5

You would think the final answer is 2.5 > x, but that is not true because -5 is negative and when a negative number is divided to both sides of an inequality, the sign gets flipped.

So, the real answer is 2.5 < x, or x > 2.5.

3 0
3 years ago
I know the answer to 255.5 ➗ 7 but how would you write it out.. (I'm not smart)
Ainat [17]
There are several ways such as
255\frac{1}{2} / 7

First put it in the decimal equation
Since there is a decimal in the number being divided(255.5), you move the decimal so that it is a whole number(2555) but since you move the decimal place once, you do the same to the 7 so that it is now 70. So now it's 2555/70 which looks like 365 but then, you have to place the decimal value so that it is now 36.5
This is what you use to divide as shown.

3 0
3 years ago
I need help pleaaseeeee
Bond [772]

Answer:

x=3

Step-by-step explanation:

Because the shape is a rhombus that means that WZ and XY are parallel

This means we can use the co-interior angles rule to conclude that ∠WZY and ∠XYZ add up to 180°

This means that ∠WZY is 44°

Because the shape in a rhombus ZX and WY are perpendicular

This means that ∠ZRY is a right angle (90°)

Because ZX and WY are perpendicular that means that ∠ZYX is split in half which makes ∠ZYW 68°

Because the angles in a triangle add up to 180°

(10x-8)+68+90=180

(10x-8)+158-158=180-158

10x-8+=22+8

10x/10=30/10

x=3

6 0
2 years ago
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