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2 years ago

Va rog sa ma ajutați: 420/180x54/180

2 answers:

4 0

First, you want to divide 420 by 180. Then, divide 54 by 180. Lastly, you want to multiply the answers of the two together.
-
420/180= 2.3

54/180= 0.3

2.3 * 0.3 = 0.69

*You just take it step by step. Hope I helped. :)

Sladkaya [172]2 years ago

4 0

Start by simplifying the fractions, its usually easier to leave it as a top heavy fraction. So we would do 420/180 which can be simplified to 7/3 (we can divide both the top and botton of the fraction by 60)
Then we can do 54/180 which is 3/10.
Now we have some nicer fractions all we have to do is multiply 7/3 x 3/10. To do this we can just multiply the tops and bottoms of the fractions so we get 21/30. This can be simplified one last time to get a final answer of 7/10 or 0.7

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The heat in the house is set to keep the minimum and maximum temperatures (in degrees Fahrenheit) according to the equation |x –

slava [35]

Answer:

The minimum and maximum temperatures in the house are 68.5°F and 76.5°.

4 0

2 years ago

Read 2 more answers

13. The sports field shown in the image below has a 90m by 70m football field with a semi-circular area at each end. A tract run

erik [133]

The area of the sports field is 10150 square meters and the length of one lap of the track is 400 meters.

<h3>What is the area of the rectangle?</h3>

It is defined as the area occupied by the rectangle in two-dimensional planner geometry.

The area of a rectangle can be calculated using the following formula:

Rectangle area = length x width

Area of the sports field = area of the rectangle + area of the two semicircle

Area of the sports field = 90×70 + π(70/2)²

= 6300 + (22/7)1225

= 6300 + 3850

= 10150 square meters

Length of the track = perimeter of the rectangle + circumference of the

two-semi circle

= 90 + 90 + 2π(70/2)

= 180 + 70(22/7)

= 180 + 220

= 400 meters

Thus, the area of the sports field is 10150 square meters and the length of one lap of the track is 400 meters.

Learn more about the rectangle here:

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8 0

2 years ago

charles had a sheet cake for his birthday when 9/12 remained charles took 1/3 of the remaining cake to wrap and save for later w

ollegr [7]

Answer:

He wrapped 3/4 of the cake.

Step-by-step explanation:

1/3 of 9/12 is 0.25 and 0.25 converted into a fraction is 3/4

- Hope this helps!

4 0

2 years ago

Which of the following options have the same value as %5, percent of 35? Choose 2 answers: (Choice A) A 5*35 (Choice B) B 5/100*

nasty-shy [4]

Answer:

B and D

Step-by-step explanation:

5% of 35 can be represented as 5% $\cdot35$ .

To find equations that make this work, we need to find different ways to represent 5%.

5% can be represented as fraction - over 100. The percentage over 100 will be equal to the percent.

So, $\frac{5}{100}$ . Multiplying by 35 gets us $\frac{5}{100}\cdot35$

This means that Choice B is correct.

Another way to represent 5% is as a decimal.

We already know that the fraction form of 5% is $\frac{5}{100}$ . This means that in the decimal, the number 5 will be two place values to the right of the decimal place.

0.<u>0</u><u>5</u>

So the decimal expansion of 5% is 0.05. Multiplyin by 35 get us $0.05\cdot35$ , so choice D works too.