3 years ago

Which of the following equals cos 80° ? A. sin 100° B. sin 20° C. sin 10° D. sin 80°

Mathematics

1 answer:

zysi [14]3 years ago

8 0

Answer:

Step-by-step explanation:

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Tpy6a [65]

Hey.

acc'g to the conditions :

Let Catherine has x
and James has 5 + 3x

Then,

$5 + 4x = 41 \\ \\ \implies 4x +5 -5 = 41-5 \\ \\ \implies 4x = 36 \\ \\ \implies x= \dfrac{36}{4} \\ \\ \implies x = 9$

Hence

• Catherine has = x = $9,
• and James has = 5 +3x = 5 + 3(9) = $32

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