A _____ is a pair of equal ratios. A) proportion B) ratio C) decimal D) percent

1 answer:

4 0

<span>In the statement "A _____ is a pair of equal ratios.", the word that completes is A, proportion. A proportion is a numerical correlation between two numbers. Frequently, these numbers can speak to an examination of things or individuals. For instance, say you strolled into a room brimming with individuals. </span>

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Answer:

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3 years ago

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If sin (A+B)=1 and tan (A-B)=1/sqroot 3<br><br> are acute angles. find out the value of A and B

Nataliya [291]

Answer:

A = 60° , B = 30°

Step-by-step explanation:

$sin(A+B ) = 1\\\\\ \ \ (A + B) \ = \ \ sin^{-1} 1\\\\A + B = 90^\circ --(1)\\\\ \ tan (A - B) = \frac{1}{\sqrt{3}}\\\\(A-B) = tan^{-1}\frac{1}{\sqrt3}}\\\\A - B = 30^\circ --(2)\\\\ (1) + (2) => 2A = 120^\circ\\$

$A = 60^\circ$

$from \ (1) \\A + B = 90^\circ\\60^\circ + B = 90^\circ\\B = 90^\circ - 60^\circ\\B = 30^\circ$

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3 years ago

2. Brandi deposited $2500 in her bank account. Her account is earning 2.85% interest

gizmo_the_mogwai [7]

Answer:

$356.25 earned in interest, 2856.25 Total.

Step-by-step explanation:

2.85% of 2500 is 71.25. Multiply that by the time (5 years) and get 356.25 (this is the amount of interest earned)

add that to the original amount. (this is the amount in the account now)

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Please help me !!!!!!!

umka21 [38]

$\frac{2}{3}y+15=9 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Given} \\\\ \frac{2}{3}y+15-15=9-15 \ \ \ \ \ \ \ \ \text{Subtraction property} \\ \\ \frac{2}{3}y=-6 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Simplification} \\ \\ \frac{2}{3}y \cdot \frac{3}{2} =-6\cdot \frac{3}{2} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Multiplication property} \\\\ y=-9 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{Simplification}$

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3 years ago