Answer:
The number of children in room 234 are 26 from Alaska, 12 from each one of the last episode and four more coming from abroad.
What is the number of children in the room 234.
Step-by-step explanation:
x=-2+y
7(-2+y)+2y=-5
-14+7y+2y=-5
9y=9
y=1
x=-2+1
x=-1
Answer:
1. 30°
2.
3. 20cm
4. 5cm
Step-by-step explanation:
for the first one:
we have the triangle RVT and we know that
so = 180
so
for the second one
we know by specials right triangles that the sides are
divide by x and get
for the third one
again by 30-60-90 triangle we know that
for the fourth one
here we can use excersie 3 and the ratio of XY:YC = 1:1
that means they are equal so
XY=YC
XY = 5