5 students scored a 90 or above. If you look at the axis that says “test scores” just count the number of dots on the “90” line and above
42 and 14
explanation:
x+y = 56
x = 3y
Substitute for x in the first equation:
x + y = 56
x = 3y
3y + y = 56
Combine like terms:
4y = 56
Divide both sides by 4:
y = 14
So if y = 14, and x = 3y, then x = 42.
Now substitute for both x and y in both of the original equations to prove they are the correct values.
x + y = 56
x = 42
y = 4
42 + 14 = 56
56 = 56
x = 3y
x = 42
y = 14
42 = 3*14
42 = 42
So the two numbers, x and y, are 42 and 14.
Answer:
G
Step-by-step explanation:
SA = 2 congruent triangles + 3 rectangles
= 2(½×12×5) + (13×4) + (12×4) + (5×4)
= 60+52+48+20
= 180 in²
