Answer:

Step-by-step explanation:

Cross multiply

Divide by 39

Answer:
x=29
Step-by-step explanation:
x+61=90
61-61
90-61
x=29
Answer:
Option C
Step-by-step explanation:
Solve the inequality like an equation using inverse operations.
-6n+5<11
-6n+5-5<11-5
-6n<6 when you divide by -6 be sure to change the sign
n>-1
Graph it in the number by placing an open circle on -1 and marking the arrow to the right.
Answer:
85.6cm
Step-by-step explanation:
Area of a triangle =1/2*b*h
Where base=19.5cm while the height is 8 4/5 = 8.8
Area = 1/2 * 19.5cm * 8.8cm
Area = 171.6cm/2
Area=85.6cm
Answer:
-1.8
Step-by-step explanation:
m= y2 - y2over x2 - x1
m= -1 - 8 over 1 - 6 = -1.8
m= -1.8