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ozzi
2 years ago
12

James is two years older than his brother Tom and three years younger than his sister Sharon. The sum of their ages is 70. What

are the ages of the three siblings?​
Mathematics
1 answer:
nikdorinn [45]2 years ago
8 0

Answer: James is 23. Tom is 21. Sharon is 26

Step-by-step explanation:

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Simplifying Variable Expression
andrew-mc [135]
X + 3 • ( 10 + y ) - 7x - 4
x + 30 + 3y - 7x - y
x - 7x + 3y - y + 30
-6x + 2y + 30
7 0
3 years ago
A football stadium contain 80% of its full capacity of spectators for a grand final match. At the end of the game, spectators le
nekit [7.7K]

Answer:

A. 30000

B. 12000

Step-by-step explanation:

Find out how much spectators leave in 1 minute.

1 second = 5

1 minute = 5 x 60 = 300 (60 seconds)

20 minutes = 300 x 20 = 6000

Since there were only 80% of the full capacity of spectators and after minutes it became 60%...

80% - 60% = 20%

20% = 6000

1% = 6000 ÷ 20 = 300

100% = 300 x 100 = 30000

1 minute = 300 spectators leaving

1 hour = 300 x 60 = 18000 (60 minutes)

30000 - 18000 = 12000

8 0
3 years ago
James has noticed that the number of new tree branches that have grown on a tree in his backyard each year follows the sequence
eduard

Notice that the pattern is "previous term plus 2".  This is an arithmetic sequence where the difference (d) equals +2

a_{n} = a₁ + d(n - 1)   ; where a₁ is the first term, d is the difference, and n is the term.

f(n) = 1 + 2(n - 1)

f(n) = 1 + 2n - 2

f(n) = 2n - 1

********************************

f(10) = 2(10) - 1

f(10) = 20 - 1

f(10) = 19

7 0
3 years ago
Pleeeaaasseeee help (questions in photo) will mark brainliest
KIM [24]

Answer:

a. 0.8727rad

b. 5.585rad

that should be correct, if not, i apologize T_T

5 0
2 years ago
Solve 3c + 4 = -20<br><br> A. -5.3<br> B. 6<br> C. 8<br> D. -8
AlexFokin [52]
D IF YOU SUBTRACT 4 FROM THE OTHER SIDE YOU HAVE -20+-4= -24 THEN YOU DIVIDE -24 BY 3 AND YOU GET -8 AS YOUR ANSWER
4 0
2 years ago
Read 2 more answers
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