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blondinia [14]
3 years ago
7

How to solve 3(5-e)+2=10

Mathematics
2 answers:
miss Akunina [59]3 years ago
6 0
<span>Simplifying 3(5 + -1e) + 2 = 10 (5 * 3 + -1e * 3) + 2 = 10 (15 + -3e) + 2 = 10 Reorder the terms: 15 + 2 + -3e = 10 Combine like terms: 15 + 2 = 17 17 + -3e = 10 Solving 17 + -3e = 10 Solving for variable 'e'. Move all terms containing e to the left, all other terms to the right. Add '-17' to each side of the equation. 17 + -17 + -3e = 10 + -17 Combine like terms: 17 + -17 = 0 0 + -3e = 10 + -17 -3e = 10 + -17 Combine like terms: 10 + -17 = -7 -3e = -7 Divide each side by '-3'. e = 2.333333333 Simplifying e = 2.333333333</span>
lozanna [386]3 years ago
6 0
3(5-e)+2=10
15-3e+2=10
17-3e=10
-3e=-7
e=2 and 1/3
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Step-by-step explanation:

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An escalator lifts people to the second floor of a building, 25 ft above the first floor. The escalator rises at a 30o angle. To
melamori03 [73]

Answer:

a person travel 50 ft from the bottom to the top of the escalator

Step-by-step explanation:

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6 0
3 years ago
The population of bald eagles is decreasing 4% each year. In 2015, there were 2800 bald eagles.
Vladimir [108]

Answer:

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Step-by-step explanation:

If the population of Eagles decreases by 4% percent each year, then in 2030 (which is 15 years later), the population would decrease by (4 × 15)%

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7 0
3 years ago
Read 2 more answers
4x - 2y =8 <br>X - 3y = - 3 <br><br><br>Solve the simultaneous equation with workings please
MatroZZZ [7]
Okay, (Assuming this is workings, dunno if it's the right method) multiply the bottom equation by -4 (for simplicity's sake here) so you get -4x+12y=12. (Changing the signs here) then to get rid of the x in the equation, add the two together. 
4x-2y=8
+
-4x+12y=12
=
10y=20
Divide 20 by 10 to get y=2. then put the answer for y back into one of the equations.
x- 3(2)=-3
x-6=-3
x=3 
in sum, y=2 and x=3. 
That is how it's done, hope it helps:)
6 0
3 years ago
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