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zhannawk [14.2K]
2 years ago
7

Question b with explanation?​

Mathematics
1 answer:
Step2247 [10]2 years ago
8 0
Hello!

The answer is 40. All we have to do is find the number of 16 year olds who spent between 25-35 minutes in social media. That is 145. The number of 13 year olds who spent the same amount of time is only 105, therefore 40 more 16 year olds spent between 25 and 35 minutes on social media.
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Write a positive or negative integer that represents the situation.
KatRina [158]

Answer:

5

Step-by-step explanation:

3 0
3 years ago
State if the triangles in each pair are similar. If so, state how you know they are similar. *
Elden [556K]

Answer:

no the triangles are not similar.

Step-by-step explanation:

5 0
3 years ago
This is worth 20 points, please answer! (Please answer with a variable in the equation)
Sindrei [870]

Answer:

The equation is 41 x 3 and 123-10 the answer is 113

Step-by-step explanation:

First, you have to find out how much 3 times is that is 123 then you take away ten which would be 113.

4 0
3 years ago
Somebody please help me with this​
satela [25.4K]

Answer:

15/56

Step-by-step explanation:

5 people have a license

3 people don't

? = Probability that first person has a license and second does not

We can divide the problem into two sections, the first being the probability of the first person having a license, and the second section is the probability that the second person doesn't have a license.

P1 = Probability of the first person having a license, there are 5 out of 8 person having a license, thus P1 = 5/8.

P2 = Probability of the second person having a license. There are 3 people not having a license, out of 8-1 = 7 persons available, since one is taken already from the first choice, therefore P2 = 3/7.

P1 and P2 are dependent events, thus P(1,2) = P1 * P2.

P(1,2) = P1 * P1 = 5/8 * 3/7 = 15/56

7 0
1 year ago
Solve the following system algerbraically: y=-3(x-2) squared+4 y=-6x+16
pishuonlain [190]

y =  - 3(x - 2) ^{2}  + 4
y =  - 6x + 16
distribute the -3 and the square into the first equation
y =  - 3x ^{2}  + 12x - 8
y =  - 6x + 16
multiply the second equation by 2
y =  - 3x ^{2}  + 12x - 8
y =  - 12x + 32
add the equations together
y =  - 3x ^{2}  + 24
factor out -3
y =  - 3(x ^{2}  - 8)
factor inside parenthesis
y =  - 3(x +  \sqrt{8} )( x -  \sqrt{8})
refine
y =  - 3(x + 2 \sqrt{2} )(x - 2  \sqrt{2} )

8 0
3 years ago
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