Hey! :)
Well, the ratio of yellow beads to blue beads is 4:5. The best way I think is to guess and check multiplying the ratio by integers. You need between 15 and 20.4 : 5 ( = 9 too little )8 : 10 ( = 18 just right)12 : 15 ( = 27 too much)So per necklace, 8 yellow beads and 10 blue beads would be needed.
Hope this helps! :)
Answer:
Given n collinear points, 2(n -1) or 2n - 2 rays can be named
Step-by-step explanation:
When we talk of collinear points, we mean points that lie on the same straight line.
For 3 collinear points we can have 4 rays
For 4 collinear points, let’s say ABCD
A B C D
The rays are AB BA BC CB CD and DC making a total of 6
For 5 collinear points,
A B C D E
The rays are;
AB BA BC CB CD DC DE ED which makes a total of 8
For 6 collinear points, we have;
A B C D E F
The rays are;
AB BA BC CB CD DC DE ED FE EF which makes a total of 10
So what pattern do we notice?
3 points 4 rays
4 points 6 rays
5 points 8 rays
6 points 10 rays
7 points 12 rays
So using the pattern
n rays = 2n - 2 rays or simply 2(n - 1) rays
Answer:
x=3 y=4
Step-by-step explanation:
x+y=7; x + 2y =11
step: solve x + y = 7 for x:
x + y+ -y =7 + -y (add -y to both sides)
x = -y + 7
step: substitute -y + 7 for x in x + 2y =11:
x + 2y = 11
-y + 7 + 2y = 11
y + 7 =11(simplify both sides of the equation)
y + 7 + -7 = 11 + -7 (add -7 to both sides)
y = 4
step: substitute 4 for y in x = -y + 7:
x = -y +7
x = -4 + 7
x = 3 (simplify both sides of the equation)
Answer:
46
Step-by-step explanation:
89
Answer:
72,012,044
Step-by-step explanation:
If you can't figure this out, your calculator can help:
72×1,000,000 +12×1,000 +44 = 72,012,044
