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Naily [24]
2 years ago
12

Jessica earns 800 each month working a part time job. she wants to save a total of 2,400 for collage over a one- year period. wh

at percentage of Jessica's total monthly budget should go to her collage savings to meet her goal
Mathematics
1 answer:
Simora [160]2 years ago
5 0

Answer:

25%

Step-by-step explanation:

Given parameters:

Amount earned per month = 800

Her savings goal = 2400

Unknown:

Percentage of monthly income that must go into savings = ?

Solution:

In a year, Jessica will earn:

          12(800) = 9600

Now;

      To earn 2400;

 Let y be the percentage of her earning that goes into saving per year;

         2400 = \frac{y}{100} x 9600

         2400 = 96y

               y = 25%

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The sum of three numbers is 11 . The sum of twice the first​ number, 5 times the second​ number, and 6 times the third number is
Assoli18 [71]

Answer:

4, 6, 1

Step-by-step explanation:

We can solve this problem using a system of equations:

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First, we can substitute the value of b from equation #3 into equation #1:

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Now, we can plug the values of b and c into equation #2, as b and c are represented in terms of a:

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2a + 20a - 50 + 126 - 30a = 44

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-8a = -32

a = 4

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4 0
2 years ago
Prove that sin²∅+cos²∅=1 ?​
sasho [114]

Step-by-step explanation:

Let ABC be a right angled triangle where there's a right angle in B . Let the measure of the angle BAC be ∅. So,

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Also,

\cos(∅)  =  \frac{AB}{AC}

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Now adding the values of sin^2∅& cos^2∅,

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But we know that

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Answer:

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