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4 years ago

8

The pet store sold two cages. The first cage was 4 feet long and 6 feet wide. The second cage was the same length as the first c

age. The area of the second cage is twice the area of the first cage. What is the width of the second cage?

2 answers:

Nimfa-mama [501]4 years ago

5 0

Answer:

12 feet

Step-by-step explanation:

Same length, double width will give double area

Width = 2×6 = 12

omeli [17]4 years ago

5 0

Answer:

12 feet

Step-by-step explanation:

Same length, double width will give double area

Width = 2×6 = 12

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On average, William takes 2 less hours to assemble a computer than Douglas. If working together William and Douglas can assemble

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Let x = hours taken by William to assemble a computer.
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3 years ago

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the number y of new vocabulary words that you learn after x weeks is represented by the equation y=15 number 17 please help A-C.

Zarrin [17]

ANSWER

<u>QUESTION 17a</u>

We were given the relation, $y=15x$ , where y represents the number of new vocabularies learned, and x represents the number of weeks

Draw a horizontal line for number of weeks and a vertical line for number of vocabulary words using a scale of 5 units on both axes.

To graph this equation we need at least three points,

When

$x=0$ , $y=15(0)$ , $\Rightarrow y=0$

So we plot the point $(0,0)$

When

$x=1$ , $y=15(1)$ , $\Rightarrow y=15$

So we plot the point $(1,15)$

When

$x=2$ , $y=15(2)$ , $\Rightarrow y=30$

So we plot the point $(2,30)$

Using a straight edge we draw a straight line through these three points.

The equation of the line is of the form $y=mx$ , where $m=15$ is the slope.

This tells us that the 15 new vocabulary words are learned each week.

<u>QUESTION 17 B</u>

To find the number of new vocabulary words learnt after 5 weeks, we plug in $x=5$ in to the equation.

$y=15(5)$

This gives us

$y=75$

Therefore after 5 weeks, you learn 75 new vocabulary words.

<u>QUESTION 17 C</u>

We find the number of vocabulary words learned after 4 weeks and subtract it from the number of vocabulary words learned after 6 weeks'

To find the number of new vocabulary words learnt after 4 weeks, we plug in $x=4$ in to the equation.

$y=15(4)$

This gives us

$y=60$

Therefore after 4 weeks, you learn 60 new vocabulary words.

To find the number of new vocabulary words learnt after 6 weeks, we plug in $x=6$ in to the equation.

$y=15(6)$

This gives us

$y=90$

Therefore after 6 weeks, you learn 90 new vocabulary words.

We now subtract to get

$90-60=30$

Therefore you learn 30 more vocabulary words after 6 wees than after 4 weeks.

5 0

4 years ago