23 + 35 + A=180
58 + a =180
-58 -58
-------------------
A = 122 degrees
Answer:
m= 6/-5
Step-by-step explanation:
m= y2-y1/x2-x1
m= 6-(-6)/-18-(-8)
m= 12/-10
m= 6/-5
Answer:60
Step-by-step explanation:
B is the correct answer
C and D would be incorrect as 7 and 15 multiplies to 105 not 115
A is incorrect as -5 and -15 make a positive 75 not a negative 75
In this question, we're trying to find cost of one sandwich.
To find this, we must make a systems of equation from the given information:
We would represent sandwiches as "s" and drinks as "d".
Systems of equations:
6s + 4d = 53
4s + 6d = 47
Solve for s:
6(6s + 4d = 53)
-4(4s + 6d = 47)
36s + 24d = 318
-16s - 24d = -188
--------------------------
20s = 130
Divide both sides by s
s = 6.50
This means that one sandwich costs $6.50
Answer:
$6.50
