HOW TO FIND THE MISSING NUMERATOR IN ANY FRACTIONS LIKE 4/8= ?/4
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Fractions are direct proportions. So when you have you can simplify the fraction and simplify even further to . This would be a fraction in simplest form
How many names are for square
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There are about four other names for a square.
Four names for the square :)
I need 3 equivalent ratios for 21:56, 48:36, 6:54 and 22:55
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Is each one a separate question?
Jenna flips to pennies 105 times how many times can she expect both coins to come up heads
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53 because there is only 2 sides of a penny so 105 divided by 2 is 52.5
Half heads. Half tails. Now I just have to get more characters but the first two sentences were the answers.
What is one possible cross section of a sphere ?
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The correct answer for that would be a circle, because a circle is perfectly symmetrical all the way around
A triangle has an angle that measures 80°. The other two angles are in a ratio of 7:13. What are the measures of those two angles?
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The angles are B and C.
The three angles add up to 180º A=80º B C
A+B+C=180º 80º+B+C=180º B+C=180º-80º B+C=100º (1)
The ratio between A and B is 7/13 ; therefore: B/C=7/13 ⇒B=7C/13 (2)
With the equations (1) and (2), we make a system of equations:
B+C=100 B=7C/13
We can solve this system of equations by substitution method: 7C/13 + C=100 least common multiple=13 7C+13C=1300 20C=1300 C=1300/20 C=65
B=7C/13 B=7*65/13 B=455/13 B=35º
Answer: The measures of those two angles are 65º and 35º.