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2 years ago

What is 3/8 divided by 1 3/5

Mathematics

2 answers:

siniylev [52]2 years ago

7 0

Answer:

1 3/5=8/5

Step-by-step explanation:

3/8×5/8=

15/64

the answer is 15/64

Eddi Din [679]2 years ago

7 0

Answer: 15/64

Steps:

First turn the mixed fraction into improper fraction;

1 3/5 is 8/5

The basic rule of fraction division is that the denominator will switch its position with the numerator, the fraction that is on the right hand side ONLY, and will become multiplication.

(3/8) / (8/5)

(3/8) * 5/8

15/64

Brainliest please!! If I am correct.

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3 years ago

Find all the missing elements : C=120degrees b= 5 c=11

mezya [45]

Answer:

A = 36.8°

B = 23.2°

a = 7.6

Step-by-step explanation:

Given:

C = 120°

b = 5

c = 11

Required:

Find A, B, and a.

Solution:

✔️To find B, apply the Law of Sines

$\frac{sin(B)}{b} = \frac{sin(C)}{c}$

Plug in the values

$\frac{sin(B)}{5} = \frac{sin(120)}{11}$

Cross multiply

Sin(B)*11 = sin(120)*5

Divide both sides by 11

$sin(B) = \frac{sin(120)*5}{11}$

Sin(B) = 0.3936

B = $sin^{-1}(0.3936)$

B = 23.1786882° ≈ 23.2° (nearest tenth)

✔️Find A:

A = 180° - (B + C) (sum of triangle)

A = 180° - (23.2° + 120°)

A = 36.8°

✔️To find a, apply the Law of sines:

$\frac{sin(A)}{a} = \frac{sin(B)}{b}$

Plug in the values

$\frac{sin(36.8)}{a} = \frac{sin(23.2)}{5}$

Cross multiply

a*sin(23.2) = 5*sin(36.8)

Divide both sides by sin(23.2)

$a = \frac{5*sin(36.8)}{sin(23.2)$

a = 7.60294329 ≈ 7.6 (nearest tenth)

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