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GREYUIT [131]
4 years ago
15

eds age is twice that of his brother. when you add eds age to his brothers age you get 36 how old is each brother show your work

Mathematics
2 answers:
ad-work [718]4 years ago
8 0

Answer:

Ed is 24 and his brother is 12

Step-by-step explanation:

2e = b

e + b = 36


nlexa [21]4 years ago
5 0

Answer:

Ed's age is 24 and his brother is 12 years old.

Step-by-step explanation:

let eds age be x years and his brothers y years then:-

x + y = 36

x = 2y

Substitute for x in first equation:-

2y + y = 36

3y = 36 so y =  12

Plug y = 12 into second equation:-

x = 2*12 = 24


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Anna71 [15]

Simplified Expression:

1.5x+13

7 0
3 years ago
Calculate the angle of depression from the
Verizon [17]

Answer: 52.6^{\circ}

Step-by-step explanation:

Let the angle of depression be x.

\sin x=\frac{27}{34}\\\\x=\sin^{-1} \left(\frac{27}{34} \right) \approx 52.6^{\circ}

7 0
2 years ago
At the city museum, child admission is $6.10 and adult admission is $9.30 . On Sunday, four times as many adult tickets as child
dalvyx [7]

Answer:

21 child tickets

Step-by-step explanation:

For this problem, you'd use a system of equations.

First, define your variables.

x = # of child tickets sold

y = # of adult tickets sold

There were 4 times as many adult tickets (y) as child tickets (x) sold, so:

4 x = y

4 x - y = 0

93 (4 x - y = 0)

372 x - 93 y = 0

The total revenue was $909.30, adult tickets were $9.30 each, child tickets were $6.10 each, so:

6.10 x + 9.30 y = 909.30

10 (6.10 x + 9.30 y = 909.30)

61 x + 93 y = 9093

372 x - 93 y = 0

433 x = 9093

433 x / 433 = 9093 / 433

x = 21

3 0
3 years ago
In ΔLMN, the measure of ∠N=90°, the measure of ∠M=17°, and MN = 20 feet. Find the length of LM to the nearest tenth of a foot.
andrey2020 [161]
20.9 ft
This is a right triangle trigonometry question because N is 90 degrees. MN is adjacent to M and LM is the hypotenuse. Adjacent any hypotenuse use the cosine function. 
cos \theta = \frac{adj}{hyp}
plug in known values
cos(17) = \frac{20}{x}
switch cos(20) and x using the products property
x = \frac{20}{cos(17)}
plug into calculator to get 20.9 ft

3 0
3 years ago
Read 2 more answers
Simplify the complex rational expression 1/x+6/5/x^2-36
DiKsa [7]
X-6/5 is the answer I got
4 0
3 years ago
Read 2 more answers
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