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butalik [34]
3 years ago
13

Matt saves 7 dollars every week in order to buy a guitar. Write an equation, using x for the independent variable and y for the

dependent variable. If he saved for 19 weeks, how much money did he save?
Mathematics
1 answer:
ANEK [815]3 years ago
5 0

Answer:

y = 7x

y = $133

Step-by-step explanation:

x = independent variable

y = dependent variable

y = 7x

Where,

y = total amount saved

x = number of weeks

7 = constant

When x = 19

y = 7x

y = 7 * 19

y = 133

y = $133

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Answer:

y=3x-5

Step-by-step explanation:

m=10-1/5-2

m=9/3

m=3

y=3x+b

x=2, y=1

1=3(2)+b

1=6+b

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8 0
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If an equation ends with the answer 39=15 how many solutions are there?
Darina [25.2K]

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none

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3 years ago
What are the solutions for the equation x2 +4x +4 = 25
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Answer:

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Step-by-step explanation:


3 0
3 years ago
The bottom of a doorway to a building is 3.45 feet above the ground, and a ramp to the door for the disabled is at an angle of 6
Darya [45]

Answer:

The ramp should be 32.9 feet longer.

Step-by-step explanation:

When the ramp is at 6^{o} to the ground, its length can be determined by applying the appropriate trigonometric function. Let the length be represented by l, so that;

Sin θ = \frac{opposite}{hypotenuse}

Sin 6^{o} = \frac{3.45}{l}

l = \frac{3.45}{Sin 6^{o} }

 = \frac{3.45}{0.10453}

 = 33.0048

l = 33.0 feet

When the angle is reduced to 3^{o}, the length of the ramp would be;

Sin θ = \frac{opposite}{hypotenuse}

Sin 3^{o} = \frac{3.45}{l}

l = \frac{3.45}{Sin 3^{o} }

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= 65.9152

l = 65.9 feet

Change in length of ramp = 65.9 - 33.0

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The ramp should be 32.9 feet longer.

5 0
3 years ago
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