Last week, an office group spent $122 on 6 cheese pizzas and 4 salads. This week, the group spent $192 on 8 cheese pizzas and 6 salads. Let c represent the number cheese pizzas and s represent the number of salads. Which system of equations can be used to find the cost of one cheese pizza and one salad? 6 c + 4 s = 122. 8 c + 6 s = 192.
6 c + 4 s = 192. 8 c + 6 s = 122.
8 c + 4 s = 192. 6 c + 6 s = 122.
4 c + 6 s = 122. 6 c + 8 s = 192.

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

b) 36

step-by-step explanation:

18 times 2 is 36

1/8 3/16 3/4

step-by-step explanation:

you put them as all the same denominator and multiply