E=number of eight cent stamps
t=number of ten cent stamps bought
w=number of 2 cent stamps bought
number of eight=number of ten
e=t
as many 2 cent as the other 2 combined
e+t=w or
2e=w=2t
total she bouthgt 4.40
4.40=440 cents
8e+10t+2w=440
solve for t or e, I solve for t
8t+10t+2(2t)=440
18t+4t=440
22t=440
divide 22
t=20
t=e
20=e
w=2e
w=2(20)
w=40
answer is
20 eight cent
20 ten cent
40 two cent
Answer: $ 7.00
Step-by-step explanation:
you multiply 1.15 by 4
and multiply 1.20 by 2
add
The length of line BE on the given line segment is 3.5 m.
The given parameters:
- <em>Length BD = 3 m</em>
- <em>Length CD = 15 m</em>
- <em>Length AB = 21 m</em>
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The sketch of the given line segments is presented in the diagram uploaded.
The length of BE is determined by applying similar triangle theorem as follows;

Thus, the length of line BE on the given line segment is 3.5 m.
Learn more about similar triangle here: brainly.com/question/11899908
4 for the second one and 2 for the second