Answer:
The common difference is -1.4
Step-by-step explanation:
The common difference is found by taking 2nd term and subtracting the first term
7.3-8.7 = -1.4
Lets check by taking the 3rd term and subtracting the 2nd term
5.9-7.3 = -1.4
The common difference is -1.4
Answer:
It says that angle ABD all together equal 116 degrees so the angle CBD equals 48 degrees so to find out what x is just subtract angles ABD and CBD which is
116-48 = 68
C. 68
Answer:
10( 1/2x + 7) = 9
Step-by-step explanation:
This is the answer because:
1) 10 times the sum is representing 10 multiplied by the sum of two numbers
2) The sum of half a number x and 7 is 1/2x + 7 because you have to figure out 1/2 of x first and then add it with 7
3) This whole entire expression is supposed to equal to 9, so the final answer is 10( 1/2x + 7) = 9
4) 1/2x + 7 is in parenthesis because you have to figure out the sum of those two number and then multiply it with 10
Hope this helps!
Answer:
x = 8 and y = 5
Step-by-step explanation:
2x - 3y = 1 --(1)
x + 2y = 18
x = 18 - 2y --(2)
sub (2) into (1):
2(18 - 2y) - 3y = 1
36 - 4y - 3y = 1
-7y = 1 -36
7y = 35
y = 5
x = 18 - 2(5) = 8
