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astraxan [27]
4 years ago
10

Use the linear combination method to solve the system of equations. Explain each step of your solution.

Mathematics
1 answer:
il63 [147K]4 years ago
8 0
You can find x first then plugged in to find y.
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Plz help
insens350 [35]

Answer:

20%

Step-by-step explanation:

there are 10 candies in all. 2/10 are red. 2/10= 20/100= 20%

8 0
3 years ago
the area of a circle is 96 square inches. What is the area of a circlewhose diameter is 1.5 times the diameter of the circle?
mars1129 [50]
The area of a circle A equals either:
πr² or πd²/4

96 = πd²/4 => d = 11 inches

The diameter of the second circle equals :
11*1.5 = 16.5 inches

The area equals: π(16.5)²/4 = 214 square inches

Good luck
5 0
4 years ago
How do you find out the measures of angles
diamong [38]
Well we use what we know, that a triangle and a line is equivalent to 180° to find the interior angles of a triangle and possibly use the exterior (s) angles present.

An exterior angle is equivalent to the two most isolated (as in the ones all the way on the other side) interior angles combined.


So this means that m∠Y is equivalent to 138° - 79° which is 59°

Now that we know m∠Y we can find m∠XZY.

How?

Well as I had mentioned earlier a triangle has 180° we can add the two interior angles that we know and subtract it by 180°.

m∠Y and m∠X together is 59° and 79° respectively which is 138°. Now let's subtract it by 180° and get 42°

~~

m∠XZY = 42°

m∠Y = 59°

~~

I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out!!

~Zoey
7 0
3 years ago
The sum of Eli’s age and Cecil’s age is 60. Six years ago, Eli was three times old as Cecil. Find Eli’s age now
Nesterboy [21]

Answer:

Eli's age = 42 years

Step-by-step explanation:

Let x be Eli's age and y be Cecil's age

So,

According to the statement given

x+y=60     eqn 1

Eli's age 6 years ago = x-6

Cecil's age 6 years ago = y-6

So according to the given statement

x-6 = 3(y-6)

x-6 = 3y - 18

x-3y = -18+6

x-3y= -12      eqn 2

Subtracting eqn 2 from eqn 1

x+y - (x-3y) = 60 - (-12)

x+y-x+3y = 60+12

4y = 72

y = 18

Cecil's age = 18 years

Putting y = 18 in eqn 1

x+18=60

x = 60-18

x = 42

Eli's age = 42 years ..

8 0
3 years ago
The steps for deriving the Quadratic Formula are shown. Which is the BEST choice for the missing reason?
Over [174]

Answer:

A) Factor

Step-by-step explanation:

3 0
3 years ago
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