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galina1969 [7]
3 years ago
10

I need help on this can someone please help me.

Mathematics
2 answers:
fiasKO [112]3 years ago
8 0
X+10=50
-10 -10
1x=40
— —
1 1
X=40
satela [25.4K]3 years ago
6 0
Opposite angles are equal in measure so :-
50=X+10
now solve for X
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Eodev.com/görev13529509​
Blababa [14]
Huh? I speak English?
8 0
3 years ago
Please, Answer is needed.
Yuki888 [10]

Answer:

540 mins | 9 hours | 540, 9

420 mins | 7 hours | 420, 7

300 mins | 5 hours | 300, 5

180 mins | 3 hours | 180, 3

Step-by-step explanation:

1 hour = 60 mins

To convert hours into minutes, multiply the number of hours by 60 minutes:

9 hours × 60 mins = 540 mins

7 hours × 60 mins = 420 mins

5 hours × 60 mins = 300 mins

3 hours × 60 mins = 180 mins

5 0
3 years ago
Read 2 more answers
In a certain data distribution, 85 is 0.25 standard deviation above the mean and 50 is 1.5 standard deviations below the mean. W
Oxana [17]

Answer:

The mean is 80 and the standard deviation is 20. Therefore we have

65 is 0.75 standard deviation below the mean.

Step-by-step explanation:

z = \frac{x-\mu}{\sigma}

Since 85 is 0.25 standard deviations above the mean we have

0.25 = \frac{85-\mu}{\sigma} or 0.25·σ  = 85 - μ......1

1.5 = \frac{\mu-50}{\sigma} or 1.5·σ  = μ - 50..............2

From 1 we have σ = 340 - 4·μ substituting into 2 gives

1.5·(340 - 4·μ) =  μ - 50 ⇒ 510 - 6·μ = μ - 50

7·μ = 560 or μ = 80

Therefore σ = 340 - 4·μ = 340 - 4·80 = 20

A value, x, 0.75 standard deviation below the mean is given by

0.75 = \frac{80-x}{20} which gives 15 = 80 - x or

x = 65.

8 0
3 years ago
I need help with these two math problems plz. Show your work
MakcuM [25]
9\16 + 3\4= 1 5/16for 1 and this answer is 1 5/16

7 1/3 - 9 = 1 2/3 for 2 so the answer is 1 2/3

I think let me know
6 0
3 years ago
Read 2 more answers
Can someone help me with this question?
Morgarella [4.7K]

Answer:

I got 15 and 12

PLZ CORRECT ME IF I AM WRONG PLEASE AND THanK YOU

Step-by-step explanation:

3 0
3 years ago
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