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Delvig [45]
2 years ago
13

Does someone mind helping me with this question? Thank you!

Mathematics
1 answer:
alukav5142 [94]2 years ago
6 0

Answer:

160 sq cm

Step-by-step explanation:

Since the two trapezoids are similar, you can use a ratio to find the area.

If we use x to represent the area of ABCD, then the ratio will look something like:

5/20 = 40/x

which then we can solve x to be 160 sq cm.

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22+35=57 so A is probably the answer.
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Marcus is 5 19/24 feet tall. Ben is 5 9/16 feet tall. Which of the two boys is taller?
Ksju [112]

well, Marcus and Ben are both 5 feet tall and a little bit more, Marcus is 19/24 more and Ben is 9/16 more, so the 5's in the fraction are the same, so which one is larger, 19/24 or 9/16?

we can simply put both fractions with the same denominator, by <u>multiplying one by the other's denominator</u>, so let's proceed,

\bf \stackrel{\textit{\large Marcus is taller}}{5~feet + \left( \cfrac{19}{24}\cdot \cfrac{16}{16}\implies \boxed{\cfrac{304}{384}} \right)}\qquad \qquad \qquad \stackrel{\textit{\large Ben}}{5~feet + \left( \cfrac{9}{16}\cdot \cfrac{24}{24}\implies \boxed{\cfrac{216}{384}} \right)}

4 0
3 years ago
8x - 54 = 82 simplify​
kirill [66]

Answer:

use brainly points

Step-by-step explanation:

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3 years ago
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An architect makes a model of a new house with a patio made with pavers. In the model, each paver in the patio is 1/3 in. long a
ladessa [460]

Answer:

The constant of proportionality between the actual dimensions of the pavers and the model is 9.


The proportionality constant for the area is 81.

Step-by-step explanation:

To solve this problem, let's transform all quantities to the same units (inches)


The actual dimensions of the pavers are:


Width = \frac{1}{8} ft * \frac{12in}{1 ft} = \frac{3}{2} in\\\\ Length = \frac{1}{4} ft * \frac{12in}{1 ft} = 3in


Then we divide the real dimensions between those of the model:


Width:


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Long =


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Then, the constant of proportionality between the actual dimensions of the pavers and the model is 9.


Actual length = model length * (9)


The "A" area of a paver is the product of its width multiplied by its length.


So:


(real width) * (real length) = ((9) Model width) * ((9) model length)


(real width) * (real length) = 9 ^ 2 * (Model width) * (model length)


(real area) = 81 * (Model area)


The proportionality constant for the area is 81.


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IRINA_888 [86]
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