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4 years ago

What is the y-intercept of the line represented by the equation? y = –3x – 5

1 answer:

4 0

-- The "y-intercept" is the point where the graphed line crosses the y-axis.

-- At every point on the y-axis, x = 0 .

-- So the y-intercept of the line represented by an equation is the value
of 'y' when x = 0.

y = -3x - 5

When x= 0 : y = -3(0) - 5 = <em>-5 </em>.

The y-intercept of the line represented by that equation is <em>-5</em> .

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2 years ago

Read 2 more answers

Does1/3 & 7/21 form a proportion

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3 years ago

Laqueta has three times as many quarters as Pablo if they each spend $.50 Laqueta will have five times as many quarters as Pablo

masya89 [10]

Answer:

Number of quarters with Pablo = 4

Number of quarters with Laqueta = 12

Step-by-step explanation:

Given that:

Laqueta has three times as many quarters as Pablo.

They both spend $0.50.

After that Laqueta will have 5 times as many quarters as Pablo.

To find:

Number of quarters with Laqueta and Pablo now?

Solution:

Let number of quarters with Laqueta = $x$

Let number of quarters with Pablo = $y$

As per given statement:

$x=3y ..... (1)$

In $0.50, there are 2 quarters:

After spending $0.50, number of quarters left with both of them:

Number of quarters left with Laqueta = $x$ - 2 = $3y-2$

Money left with Pablo = $y$ - 2

As per given statement:

$3y-2 = 5(y-2)\\\Rightarrow 3y-2 = 5y-10\\\Rightarrow 2y = 8\\\Rightarrow y = 4$

Therefore, the answer is:

Number of quarters with Pablo = 4

Number of quarters with Laqueta = $3 \times 4$ = 12

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3 years ago

1. According to the Center for Disease Control and Prevention, the breast cancer rate for women has decreased at 0.9% per year b

jeka94

Answer:

a. 199,389

b. b. From the part A, the question suggests a 0.9% yearly decrease which amounts to 199,389. This answer does not correspond to their recorded figure because the 0.9% decrease was just an average taken over the period. There could be years that the decrease was way smaller than the recorded average, thus using average may not be a good way for calculating population decrease over a period of time.

Step-by-step explanation:

a. Population in 2009 = 192,370

This means that in 2005 the population = 192,370 x 1.009 x 1.009 x 1.009 x 1.009 = 199,389

b. From the part A, the question suggests a 0.9% yearly decrease which amounts to 199,389. This answer does not correspond to their recorded figure because the 0.9% decrease was just an average taken over the period. There could be years that the decrease was way smaller than the recorded average, thus using average may not be a good way for calculating population decrease over a period of time.

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3 years ago

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cestrela7 [59]

Add every decimal, then divide by 14 (two weeks, 7 days, total of 14 values), and the closest you get is 0.42.

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3 years ago