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LiRa [457]
2 years ago
5

The sum of the measures of two complementary angles

Mathematics
1 answer:
cestrela7 [59]2 years ago
6 0

Answer:

The angles are 23° , 67°

Step-by-step explanation:

Let one angle be 'x'.

Its complement = 2*x + 21 = 2x + 21

x + 2x + 21 = 90°

     3x  + 21 = 90

Subtract 21 from both sides,

              3x = 90 - 21

              3x = 69

Divide both sides by  3,

                 x = 69/3

                 x = 23°

Its complement = 2*23 + 21

                          = 46 + 21

                          = 67°

Two complementary angles are 67 and 23

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Answer:

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Step-by-step explanation:

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3 years ago
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maria has a total of 95 dimes and quarters. If the total value of the coins is $23.45, how many quarters does she have? Please S
NARA [144]
This is the concept of application of quadratic equations; To get the number of dimes and quarters we proceed as follows;
suppose there are x dimes and y quarters;
x+y=95.......i
but we know;
$0.1=1 dimes
$0.25=1 quarters 
thus
0.1x+0.25y=23.45.....ii
solving equation i and ii by substitution we shall have:
from i;
x=95-y
thus substituting the value of x in equation ii we get
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collecting like terms we get:
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dividing both sides by 0.15 we get;
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4 0
3 years ago
15/124 x 230/30 divided by 230/124
pentagon [3]

Answer: 15/124 x 230/30 divided by 230/124 = 0.5

hope this helps

6 0
3 years ago
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ILL GIVE U BRAINLYIST
leva [86]

Answer:

I think the answer is C. 7

Step-by-step explanation:

Since the angle is a right angle you first subtract 55 from 90.You are left with 35.

Secondly we have to divide 35 by 5 to find x.

Therefore 35÷5= 7.

I hope this helps you in any way.

4 0
3 years ago
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What is BD?<br> C<br> X + 5<br> B<br> х<br> 12<br> 27<br> А<br> BD =
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