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Juli2301 [7.4K]
4 years ago
9

I have homework and i dont understand it its called "Solving Systems of Equations by Elimination." The problem im stuck on is

Mathematics
1 answer:
Goshia [24]4 years ago
8 0
8x + y = -16 ;
3x  - y  = 5 ;
____________(+)
11x      = -11;
x = - 11 / 11 ;
x = - 1;
y = -5 + 3 * ( - 1 ) = - 8.
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Solve for x<br><br> x^2-3x+2=0
cricket20 [7]

Answer:

x=1,2

Step-by-step explanation:

x^2-3x+2=0

(x-1)(x-2)

x-1=0

x-2=0

x=1,2

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Answer:

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Step-by-step explanation:

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Solve.<br> 3^x = 81<br> a X= 2<br> b. X= 4 c. x=6 d. x =9 <br><br><br> HELPPPPP
maw [93]

Answer:

B= x=4

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3 years ago
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Find the values of x, y, and z. The diagram is not to scale.
Kruka [31]

we know that

The sum of the internal angles in the triangle must be 180 degrees

see the attached figure with letters to better understand the problem

Step 1

<u>Find the measure of the angle x</u>

In the triangle ABC

63\°+36\°+x\°=180\°

solve for x

99\°+x\°=180\°

x\°=180\°-99\°

x=81\°

therefore

<u>the answer Part a)  is</u>

the measure of angle x is 81\°

Step 2

<u>Find the measure of the angle z</u>

we know that

x+z=180\° --------> by supplementary angles

substitute the value of x

81\°+z=180\°

z=180\°-81\°

z=99\°

therefore

<u>the answer Part b)  is</u>

the measure of angle z is 99\°

Step 3

<u>Find the measure of the angle y</u>

In the triangle ACD

13\°+z\°+y\°=180\°

solve for y

13\°+99\°+y\°=180\°

112\°+y\°=180\°

y\°=180\°-112\°

y\°=68\°

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the measure of angle y is 68\°

5 0
3 years ago
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If $6000 was expected in sales and only $5100 was attained, what reduced fraction represents sales attained?
ira [324]

The reduced fraction that represents the sales attained is 17/20

<h3>How to determine the fraction?</h3>

The given parameters are:

Expected = $6000

Attained = $5100

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Fraction = Attained/Expected

So, we have:

Fraction = 5100/6000

Divide by 300

Fraction = 17/20

Hence, the reduced fraction is 17/20

Read more about fractions at:

brainly.com/question/1622425

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