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IrinaVladis [17]
3 years ago
7

Fast I need to know what 20/22= x/11

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
4 0

Answer:

To Find => The value of x. in the equation below

=>

20 \div 22 = x \div 11

Step-by-step explanation:

We will cross Multiply the digits

=>20 \div 22 = x \div 20

=>We'll cross Multiply

=>

20 \div 22 = x \div 11 \\  =  > 22x = 20 \times 11 \\  = >  22x = 220 \\  =  > x = 220 \div 22 \\  =  > x = 10

<em><u>Hence,</u></em><em><u> </u></em><em><u>1</u></em><em><u>0</u></em><em><u> </u></em><em><u>is </u></em><em><u>the</u></em><em><u> </u></em><em><u>required</u></em><em><u> </u></em><em><u>answer</u></em>

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Two angles in a triangle have measures of 25° and 55°.
rosijanka [135]

Answer:

B) 100

Step-by-step explanation:

All 3 interior angles of a triangle add up to 180 so:

x + 25 + 55 = 180

x + 80 = 180

x = 180 - 80

x = 100

4 0
3 years ago
HELP OMG HELP IM SO STUCK
tangare [24]

Answer: -1

Step-by-step explanation:

1 - (-3) - 5 = 1 + 3 - 5

Thats because subtracting by a negative number is the same as adding the negative number's absolute value (Distance away from zero).

(1 + 3) - 5 = -1

PEMDAS Addition and Subtraction from left to right.

7 0
3 years ago
10/18=c/4.5<br> what is c
zhannawk [14.2K]
\frac{10}{18}=\frac{c}{4,5}\\\\cross\ multiplication\\\\&#10;4,5*10=18c\\\\&#10;45=18c\ \ \ \ | divide\ by\ 18\\\\&#10;c=\frac{45}{18}=2\frac{1}{2}\\\\\&#10;\boxed{c=2\frac{1}{2}}
7 0
3 years ago
A carpenter wants to cut a board 16 1/2 feet in length into 1 7/8 feet pieces. How many pieces can be cut from the board? The ca
yawa3891 [41]
<h3>Answer:</h3>
  • 8 pieces
  • 3/8 foot
<h3>Explanation:</h3>

a) Let n represent the number of 1 7/8 ft pieces. Then we have ...

... 16 1/2 ft = n × (1 7/8 ft)

We can find n by dividing this equation by 1 7/8.

... (16 1/2)/(1 7/8) = n = (132/8)/(15/8) = 132/15

... n = 8 12/15 = 8 4/5

The integer number of pieces that can be cut is 8 pieces.

b) The length of the left-over piece is 4/5 of the full length of a piece, so is ...

... (4/5) × (15/8 ft) = 12/8 ft

We want to divide this into 4 equal lengths, so each of those lengths will be 1/4 of the length of the left-over:

... (1/4) × (12/8 ft) = 3/8 ft

_____

<em>Comment on arithmetic with fractions</em>

This problem is easier if you <em>convert the mixed numbers to improper fractions</em>. This is done by expressing the integer as a number of fractional parts, then adding the fraction part of the mixed number:

... a + b/c = (a×c/c) + b/c = (ac +b)/c

Division with fractions is taught a couple of different ways. One way you can do it is to "invert and multiply". That is, you multiply the numerator fraction by the reciprocal of the denominator fraction:

... (a/b)/(c/d) = (a/b)×(d/c)

Another way you can do the division is to express each of the numerator and denominator fractions over the same denominator. Then the quotient is the ratio of numerators.

... (a/c)/(b/c) = a/b

This is the method we used here. Effectively, we converted 16 1/2 to 16 4/8 then to (16×8 +4)/8 = 132/8. Then the numerator and denominator fractions both had denominators of 8, so (132/8)/(15/8) = 132/15. This fraction can be reduced by removing a factor of 3 from numerator and denominator to give ...

... 132/15 = 44/5 = 8 4/5

7 0
3 years ago
1. What is the value of x? Show all of your work.
Colt1911 [192]
You can use the pathagorean theorm.
a^2 + b^2 = c^2
a^2 + 6^2 = \sqrt{117}^2
a^2 + 36 = 117
a^2 = 117 - 36
a^2 = 81
\sqrt{a^2} = \sqrt{81}
a = 9
x = 9
5 0
3 years ago
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