1) Could
2) Could, <span>but don't have to be</span>
Using elimination method. Using substitution will cause some fraction problems.
c- child tickets
a- adult tickets
4a + 7c = $83
5a + 6c = $90
multiply by -5
-20a - 35c = -$415
20a + 24c = $360
-11c= -$55
c = $5 child tickets
4a + 7(5)= $83
4a + 35 = $83
4a = $48
a= $12 adult tickets
Answer:
0.05
Step-by-step explanation:
I turned the fractions into decimals. to do that your do exactly as it tells you!
4 divided by 5 = 0.8
so she has 0.8 ounces of juice (That not alot lol I would not be satisfied) now for how much she drank...
3 divided by 4 =0.75
0.80 - 0.75 = 0.05
She drank 0.05 ounces
Hope this helped! Please mark as brainliest! Thanks! If you need me to turn 0.05 in a fraction i can do that.
Answer:

Step-by-step explanation:
The triangles are drawn below.
CD is perpendicular to AB as CD is height to AB.
Therefore, angles
°
So, triangles ΔCBD and ΔCAD are right angled triangles.
Now, from the right angled triangle ΔABC,

From ΔCBD,
is same as
.
So, 

Now, from ΔCAD,
is same as 
So, 

Hence, the unknown angles of both the triangles are:

q = 10p because all of them are multiplied by ten