Write two different expressions equivalent to 8d-4
2 answers:
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Given:
Consider the total age of 5 children with age difference 3 years is 50 years.
To find:
The age of the youngest and oldest child.
Solution:
Let the ages of the 5 children are x-6, x-3, x, x+3, x+6.
Sum of their ages is 50 years.
The age of the youngest child is
The age of the oldest child is
Therefore, the age of youngest child is 4 years and the age of the oldest child is 16 years.
Answer:
see explanation
Step-by-step explanation:
Using the exact values of the trigonometric ratios
sin60° = , cos60° =
sin45° = cos45° =
Using the sine ratio on the right triangle on the left
sin60° = =
=
Cross- multiply
2a = 4 ×
= 12 ( divide both sides by 2 )
a = 6
Using the cosine ratio on the same right triangle
cos60° = =
=
Cross- multiply
2c = 4 ( divide both sides by 2 )
c = 2
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Using the sine/cosine ratios on the right triangle on the right
sin45° = =
=
Cross- multiply
b = 6
cos45° = =
=
Cross- multiply
d = 6
( divide both sides by
)
d = 6
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a = 6, b = 6, c = 2
, d = 6