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3 years ago

RATHER THAN USE DECIMALS-convert it to cents..

Mathematics

1 answer:

stepan [7]3 years ago

5 0

Answer:

<h2>there are 22 dimes</h2><h2>there are 44 nickles</h2><h2 />

Step-by-step explanation:

D be dimes and N be nickles

2 nickles as dime

nickle = 5 cents and dime =10 cents

N=2D

0.10 D + 0.05 (N)=4.4 substitute N=2D

0.10 D +0.05(2D)=4.4

0.10D+0.10D=4.4

0.20 D=4.4

D=4.4/0.2 = 22

<h2>there are 22 dimes</h2>

N=2D

N=2(22)

N=44

<h2>there are 44 nickles</h2>

check : 0.10(22)+0.05(44)= 4.4 (correct)

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3 years ago

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25 points :) please help! <br> Of you do I really really appreciate it!

MissTica

Answer: Jessica wants 120 plants in her garden.

Explanation:
Lets find the area of the triangle first:
Tip: the formula can be base x height divided by 2 so you cant get confised about 1/2bh.

Any side of the triangle can be a base, once u find a base, there will always be one corresponding height.

In this case, the base is 12 feet
And the height is 5 feet because that side is perpendicular/corresponding to the base, meaning that the side connects to the base in a 90 degree angle.

So we have this:
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The area of the triangle is 30 square feet.

Now, if Jessica wants 4 plants for each square foot of area, we do this:
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Co.mment me if u have any questions
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3 years ago

Write the equation of the line with the following characteristics.

Alika [10]

Answer:

y = 7x

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x = -2

Step-by-step explanation:

<em>Slope-intercept form: y= mx+b</em>
<em>Parallel lines have same slope</em>

a)Parallel to y=7x+2 through the point (0,0)

y= 7x + b

<u>Considering the given point of (0,0), to find the value of b:</u>

0= 7*0+b ⇒ b =0

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b)Slope of 2 through the point (0,−3)

<u> Solving as above:</u>

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c)A horizontal line through the point (0,3)

<u> A horizontal line will have constant value for y for any value of x:</u>

y = 3

d)A vertical line through the point (−2,0)

<u>A vertical line will have constant value of x for any value of y:</u>

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3 years ago