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2 years ago

Estimate (rounding) 11 3/5-4 1/12

Mathematics

1 answer:

34kurt2 years ago

3 0

Answer:

Step-by-step explanation:

Look to the next smallest place value, the digit to the right of the place value you're rounding to

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The 60-foot rope was cut into two pieces. One of the pieces was 10 feet longer than 4 times the length of the other piece. How l

koban [17]

Answer:

50 and 10

Step-by-step explanation:

x+4x+10=y

y is 60

x+4x+10=60

5x+10=60

5x=50

x=10

10*4=40

40+10=50

50+10=60

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2 years ago

1) 225 What is the square root of 225 simplified?

Goryan [66]

Answer: 15

Step-by-step explanation: This is one of those square roots you'll memorize really quickly. You don't even have to simplify it, since it's an integer.

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2 years ago

Hey...

CaHeK987 [17]

Answer:

$375000000$

Step-by-step explanation:

~Kandy~
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2 years ago

Read 2 more answers

Joshua finds the perimeter of the following composite figure composed of a square and right triangle so that a braid may be cut

Bumek [7]

The perimeter of a shape is the sum of its side lengths.

Joshua miscalculated the third length of the triangle

First, we calculate the third length (x) of the triangle.

Because the triangle is right-angled, we can make use of Pythagoras.

So we have:

$x^2 = 7^2 + 7^2$

$x^2 = 2(7^2)$

Take square roots of both sides

$x = \sqrt{2(7^2)$

$x = 7\sqrt{2$

The other shape in the figure is a square.

So, the perimeter (P) is

$P = 7 + x + x + x + 7$ ---- i.e. the sum of the visible lengths

So, we have:

$P = 7 + 7\sqrt2 + 7\sqrt2 + 7\sqrt2+ 7$

Evaluate like terms:

$P = 14 + 21\sqrt2$

Hence, Joshua's error is that:

He miscalculated the third length of the triangle