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2 years ago

A square plywood platform has a perimeter which is 11 times the length of a side,

Mathematics

1 answer:

Ivan2 years ago

3 0

Answer:

Step-by-step explanation:

11L - 42 = 4L

7L = 42

L = 6

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I thought of a number, added 4 5/7 to it, and got the number 12 times as big as my original what was my number

Genrish500 [490]

Let's call the number you thought of n. Then what the two steps you took can be written as an equation:
$n+4\frac{5}{7}=12n$

Subtract n to get all of your variables to one side:
$4\frac{5}{7}=11n$

At this point, I recommend turning your mixed number into an improper fraction. It will make things easier later on:
$\frac{33}{7}=11n$

Now divide both sides by 11 to get the value of n:
$\frac{3}{7}=n$

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3 years ago

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last Friday,Adam had $22.33.over the weekend,he received some money for shoveling he neighbor's driveway.he now has $32.How much

crimeas [40]

$9.67 because $32-$22.33=$9.67

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3 years ago

What is the area of the figure?

Orlov [11]

Answer:

90 in²

Step-by-step explanation:

The figure's area is that of four right triangles, each with legs of 6 in and 7.5 in. The area of each triangle is half the product of the leg lengths, so is ...

triangle area = (1/2)(6 in)(7.5 in)

Then the area of 4 of those triangles is ...

figure area = 4 · triangle area = 2(6 in)(7.5 in) = 90 in²

8 0

3 years ago

Help asap with Arcs! 30 Points

alexira [117]

The answer is 15

these chords are congruent because the radius of the circle are perpendicular to the them
so we can find EF by making an equation:
$3x + 5 = x + 35 \\ 3x - x = 35 - 5 \\ 2x = 30 \\ x = \frac{30}{2} = 15$

so EF is = 3(15)+5=50
good luck

6 0

3 years ago

The actual distance between two villages is 120 kilometers. On a map of the area, 0.5 centimeter represents 2 kilometers.

stira [4]

Answer:

30 centimeters

Step-by-step explanation:

120 ÷2 =60 now you must use only .5 of that number so you have thirty

3 0

2 years ago