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maw [93]
3 years ago
11

How do I solve it by substitution?y=-24x-6y=-20

Mathematics
2 answers:
iris [78.8K]3 years ago
8 0
-2x6=-12 so then ?x4=-8 and that something is -2
Ostrovityanka [42]3 years ago
3 0
I hope this helps you! :)

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Evaluate each expression when x = 8, and z = 10
sveticcg [70]

Answer:

x = 2

y = 4

z = 8

1. xy

10

2. x + z

8

3. z - y

4

4. x + y + z

14Step-by-step explanation:

7 0
2 years ago
the least common denominator of two fractions is 12. if you add the two denominators, their sum 7. what are the denominators?
Varvara68 [4.7K]
3 and 4

3 x 4 = 12
3 + 4 = 7
8 0
3 years ago
Read 2 more answers
Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm. What is Rich's percent error in this c
Hitman42 [59]

Answer:

0.9%

Step-by-step explanation:

We have been given that Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm.

We will use percentage error formula to solve our given problem.

\text{Percentage error}=\frac{\text{Experimental value-Actual value }}{\text{Actual actual}}\times 100

\text{Percentage error}=\frac{80.7-80}{80}\times 100

\text{Percentage error}=\frac{0.7}{80}\times 100

\text{Percentage error}=0.00875\times 100

\text{Percentage error}=0.875\approx 0.9

Therefore, Rich's percent error in calculation is 0.9%.

5 0
3 years ago
6. Which of the following is a true statement? (1 point) A trapezoid is a type of parallelogram. A trapezoid is a type of quadri
steposvetlana [31]
Its a quadrilateral. Because I googled it. 
5 0
3 years ago
Read 2 more answers
Does anyone know how tj do this (trig)
Crank

Answer:

x = 5

Step-by-step explanation:

NOTE: THE 2 SIDES ARE THE SAME LENGTH

THEY HAVE TO BE SMALLER THEN 10

So 10/2 = 5

x = 5

<em><u>Please mark as brainliest </u></em>

Have a great day, be safe and healthy  

Thank u  

XD

8 0
3 years ago
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