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Natali [406]
3 years ago
14

20 POINTS ANSWER SOON PLEASE

Mathematics
2 answers:
sweet [91]3 years ago
6 0

Answer:

78

Step-by-step explanation:


Scrat [10]3 years ago
6 0

A

I just took the test.

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Which number is Venezuela on the map? yall
SSSSS [86.1K]

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its 5

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3 years ago
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Plz help it’s due tonight!!!
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Answer:

48

Step-by-step explanation:

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2 years ago
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Solve the system of equations using substitution or elimination. Show all work for credit.
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Using substitution:
first you have to express one variable in terms of the other, in this we can express y in terms of x:
y =  \frac{ -  \frac{1}{2} x + 2}{3}  \\ y =  - x + 9

Since both expressions are equal to y, you have to equal both expressions like this:
\frac{  - \frac{ 1}{2}x + 2 }{3}  =  - x + 9
Now you can solve the equation:
-  \frac{1}{2} x + 2 = 3( - x + 9) \\   - \frac{ 1}{2}x  + 2 =  - 3x + 27 \\  \\  -  \frac{1}{2} x + 3x = 27 - 2 \\   \frac{5}{2} x = 25 \\ x =  \frac{(25)(2)}{5}  \\ x = 10
Knowing x=10, you can use any of the expressions we found before to find y. In this case I'm going to use y= -x+9 because it's simpler but boy should give you the same result

y =  - (10) + 9 \\ y =  - 1
So, the answer is x=10 and y=-1
4 0
2 years ago
Can you please help with 19&23? 19 says write an expression to represent the perimeter. Thanks!
Valentin [98]

the perimeter is simply the sum of all its sides.

(6a+8)+(12a)+(6a+8)+(10a-4)

34a + 16 - 4

34a + 12.

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3 years ago
Which circle has a radius that measures 10 units?
almond37 [142]

Answer:

then the diameter is 20

Step-by-step explanation:

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2 years ago
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