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Leni [432]
3 years ago
11

Evaluate x + 8 when x = 7 a. 15 b. 1 c. -1 d. 56

Mathematics
2 answers:
Tems11 [23]3 years ago
8 0

Answer:

a) 15

Step-by-step explanation:

x+8

substitute x value in

7+8

=15

Nookie1986 [14]3 years ago
8 0

Answer:

<h2>15 (a)</h2>

Step-by-step explanation:

<h3>We know that x would be equal to 7, so just add 7+8 which gets you to 15 :)</h3>
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On a calendar of 31 days what are the prime numbers
zepelin [54]
I believe <span>2   3   5   7   11   13   17   19   23   29   31</span>
5 0
3 years ago
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-11 and 1/6 as a decimal
Nikolay [14]

-11.1666667 should be the answer


7 0
3 years ago
Three times the sum of a number and seven is 23 less than five times the number find the number wrong your answer to the nearest
mote1985 [20]

so you have your two equations 3x+7=5x-23 and solve for x which is your "number" leaving the answer to be <u>x=15</u>

4 0
3 years ago
Please help <br> A. 63<br> B. 72<br> C. 81<br> D. 108
Tom [10]

Answer:

<u>D.108</u> is correct.

Step-by-step explanation:

6*3 = 18

18*4 = 72

6*6 = 32

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Have a nice day!

5 0
3 years ago
Find the value of each variable so that the quadrilateral is a parallelogram.
Dmitry [639]

Answer:

<em>x = -2</em>

<em>y = -5</em>

Step-by-step explanation:

<u>Properties of a Parallelogram</u>

  • Two pairs of opposite sides are parallel.
  • Two pairs of opposite sides are equal in length.
  • Two pairs of opposite angles are equal in measure
  • The diagonals bisect each other.
  • Adjacent angles are supplementary.
  • Each diagonal divides the quadrilateral into two congruent triangles.

Each diagonal is divided into two measures expressed with variables. Since diagonals bisect each other:

y + 23 = -4y - 2.  And

-2x + 6 = x + 12

Solve the first equation. Adding 4y:

5y + 23 = - 2

Subtracting 23:

5y = -25

Dividing by 5:

y = -5

Solve the second equation. Subtracting x and 6:

-3x = 6

Dividing by -3:

x = -2

Solution:

x = -2

y = -5

4 0
2 years ago
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