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wlad13 [49]
3 years ago
6

A chess club has 500 members nut is losing 30 members each year. A computer club has 150 members and is gaining 20 members per y

ear. Write and solve an equation to find the number of years it will take for the two clubs to have the same number of members.
Mathematics
1 answer:
Fiesta28 [93]3 years ago
3 0

500 - 30x = 150 + 20x
x = 7

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posledela
15% becomes 0.15
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uysha [10]

Answer: I thin it's A because you just multiply 19*6

Step-by-step explanation:

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Use the following diagram to find the angle measures of the triangle, rounded to the nearest degree.
nadezda [96]

Answer:

m∠A = 30°

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m∠C = 70°

Step-by-step explanation:

By applying cosine rule in the given triangle,

b² = a² + c² - 2ac[cos(∠B)]

From the given triangle,

a = 14 m

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cos(∠B) = 0.1786

∠B = \text{cos}^{-1}(0.1786)

∠B = 79.71°

∠B = 80°

By applying sine rule in the given triangle,

\frac{\text{sinA}}{a}= \frac{\text{sinB}}{b}= \frac{\text{sinC}}{c}

\frac{\text{sinA}}{14}= \frac{\text{sin(79.71)}}{28}= \frac{\text{sinC}}{24}

\frac{\text{sinA}}{14}= \frac{\text{sin(79.71)}}{28}

\text{sinA}= \frac{\text{sin(79.71)}\times 14}{28}

sinA = 0.491958

A = 29.47°

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By applying triangle sum theorem,

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4 0
3 years ago
2(3/4)=5<br> 3(4×2)=1<br> 1/4+4/3
Andrej [43]

Answer:

1)

2( \frac{3}{4} )= 5 \\  \frac{3}{2}  = 5 \\ 3 = 5 \times 2 \\ 3 = 10

2)

3( 4 \times 2) = 1 \\ 3(8) = 1 \\ 24 = 1

3)

\frac{1}{4}  +  \frac{4}{3}  \\  \frac{1}{1}  +  \frac{1}{3}  \\ 1 \times 3 + 1 \times 1 \\ 3 + 1 \\ 4

3 0
2 years ago
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