The measures of the angles of a quadrilateral are x, x, x + 15 degrees, and x + 45 degrees; x = ?

a. 81
b.61
c.71
d.51

Hola User

Here is your Answer...!!!

Actually welcome to the concept of the Angle sum property...

The Angle sum property of a Quadilatetal =》

m/_A + m/_B + m/_C + m/_ D = 360°

Thus adding all the angles we get as

=》 X + X + X+ 15° + X + 45° = 360°

=》 4X + 60° = 360°

thus ..4X = 360 - 60 = 300

Thus .. 4X = 300

X = 300 ÷ 4 =》 75°

X = 75°

  75

Step-by-step explanation:

The sum of the angles of a quadrilateral is 360°

(x) + (x) + (x + 15) + (x + 45) = 360

4x + 60 = 360

     - 60 - 60

4x         = 300

÷4             ÷4  

 x         =  75

Since the choices provided do not include 75, i worked each answer backwards to see if 15 degrees and/or 45 degrees was a typo:

A) 4(81) + y = 360    -->    y = 36

B) 4(61) + y = 360    -->    y = 116

C) 4(71) + y = 360    -->    y = 76

D) 4(51) + y = 360    -->    y = 156

Check to see if one of the x's had another number added to it.

A) if x - 24 is missing

B) if x + 56 is missing

C) if x + 16 is missing

D) if x + 96 is missing

My best guess is A or C

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)

bn,mn,n.vn.

step-by-step explanation: