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3 years ago

Mary's math certificate is 10 inches tall and 13 inches wide. Mary wants to put the certificate

Mathematics

1 answer:

wlad13 [49]3 years ago

8 0

Answer:

$219.70

Step-by-step explanation:

First, you need to find the area of the certificate, which you can do by multiplying 10*13, since it is a rectangle. 10*13 is 130. Then, multiply 130 by the price per inch, which is $1.69. 130*1.69=219.7, which in financial terms would amount to $219.70.

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Shade the model to show the decimal 0.542 using 100 grid and 10 grid

kherson [118]

0.542=0.500 + 0.040+0.002

= $\frac{5}{10} + \frac{4}{100} +\frac{2}{1000}$

=5 tenth + 4 hundredths + two thousandths

One tenth = $\frac{1}{10}$

One Hundredth= $\frac{1}{100}$

One thousandth= $\frac{1}{1000}$

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2 years ago

Read 2 more answers

Kathy is fencing in her yard that has an area of 800 square feet. Her yard is in the shape of a rectangle where the length is 60

anygoal [31]

Answer:

The dimensions of the yard are W=20ft and L=40ft.

Step-by-step explanation:

Let be:

W: width of the yard.

L:length.

Now, we can write the equation of that relates length and width:

$L=5W-60$ (Equation #1)

The area of the yard can be expressed as (using equation #1 into #2):

$Area=W*L=W*(5W-60)$ (Equation #2)

Since the Area of the yard is $800 ft^2$ , then equation #2 turns into:

$800=W*(5W-60)$

Now, we rearrange this equation:

$800=W*(5W-60)//800=5W^2-60W//5W^2-60W-800=0$

We can divide the equation by 5 :

$W^2-12W-160=0$

We need to find the solution for this quadratic. Let's find the factors of 160 that multiplied yields -160 and added yields -12. Let's choose -20 and 8, since $(-20)*8=160$ and $-20+8=-12$ . The equation factorised looks like this:

$(W-20)(W+8)=0$

Therefore the possible solutions are W=20 and W=-8. We discard W=-8 since width must be a positive number. To find the length, we substitute the value of W in equation #1:

$5*20-60=40$

Therefore, the dimensions of the yard are W=20ft and L=40ft.

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What is the constant of proportionality y/x if y=40 and x=1

Anastasy [175]

The c.o.p would be 40

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astra-53 [7]

700%10=70

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Brainliest would be cool, hope this helped

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