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3 years ago

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Mathematics

1 answer:

alex41 [277]3 years ago

4 0

Answer:

4 dollars

Step-by-step explanation:

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John an architect, used a scale factor of 1 inch = 20 feet to design a site plan. the actual park has been designed to be 18 fee

lina2011 [118]

Answer:12

Step-by-step explanation:

3 0

3 years ago

Help please.

maria [59]

A1=-15
a2=a1+d→-4=-15+d→d=11

8 0

3 years ago

Erika worked 14 hours last week and 20 hours this week. If she earns $9 per hour, how much did she earn during these two weeks?

ozzi

we know that

Erika earns $\$9$ per hour

By proportion

Find how much she earn during the total hours of two weeks

The total hours of two weeks is equal to

$14+20=34\ hours$

$\frac{9}{1} \frac{\$}{hour} =\frac{x}{34} \frac{\$}{hours} \\ \\x=34*9 \\ \\x=\$306$

therefore

the answer is

$\$306$

4 0

3 years ago

Read 2 more answers

Please help me :) ty ty

WARRIOR [948]

Answer:

The slope is steeper and the line is shifted flatter.

Step-by-step explanation:

I have provided a graph to help illustrate the relationship between these two lines, (The red line is line A which is y = 2x + 4, and the blue line is line B which is y = 4x + 9).

As you can see, the slope does determine the steepness of the lines. This means that line A's slope is going up 2 units and over to the right 1 unit, whereas line B's slope is going up 4 units and to the right 1.

Therefore, if line A is to transform into line B, then its slope will be steeper.

Hope this helps you :)

Also, P.S. I don't know if there are supposed to be more options, so I apologize if flatter does not belong in the second box.

6 0

2 years ago

A carpenter is assigned the job of expanding a rectangular deck where the width is one-fourth the length. The length of the deck

leva [86]

Let the width be W, then the length is 4W (since the width is 1/4 the length)

The area of the original deck is $W*4W=4W^{2}$

The dimensions of the new deck are :

length = 4W+6
width=W+2

so the area of the new deck is :

$(4W+6)(W+2)= 4W^{2}+8W+6W+12= 4W^{2}+14W+12$

"the area of the new rectangular deck is 68 ft2 larger than the area of the original deck" means that we write the equation:

$4W^{2}+14W+12=68+4W^{2}$

$14W+12=68$

$14W=68-12=56$

$W= \frac{56}{14}= 4$

the length is $4W=4*4=16$ ft

Answer: width: 4, length: 16

3 0

3 years ago