2x - 6 = 20
2x = 20 + 6
2x = 26
x = 26/2
x = 13 <==
A- 5.3 cm
B- 17.8m
C-9.7 in
D-12 cm
E- 8.3ft
F-25.5m
A system of equations is:
B )
x + y = 375
x = 2 y - 60
We will solve this system:
2 y - 60 + y = 375
3 y = 435
y = 435 : 3
y = 145
x = 375 - 145
x = 230
Allan`s score was 230 and Dave`s score was 145.
Answer:
Definitely 3/4!
Step-by-step explanation:
Option A = 7.5
Option B = 66.6%
Option C = 75% (because 25 times 4 is equal to 100%, so 25 times 3 would be 75)
Option D = 6/10 or 60%