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serious [3.7K]
3 years ago
9

Does anyone know the answer I’m in Calvert and in 7th grade this is the unit quiz: rational number system

Mathematics
1 answer:
damaskus [11]3 years ago
3 0

Answer:

Can you show the drop down choices?

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Evalute the expression. 80 + (8x4) divided by 2
dexar [7]

Answer:

If you meant [80 + (8*4) ]/2,  then  [80 + (8*4) ]/2=56

or if you meant 80 +  [ 8*4 /  2], then 80 +  [ 8*4 /  2] = 96

Step-by-step explanation:

Evalute the expression. 80 + (8x4) divided by 2

so do you mean

the whole expression 80 + (8x4)   is  over  2 ?

If so then:

evaluate  8x4  =  8 * 4 = 32.

so   we have 80 + (8x4)   is  over  2  =  (80 + 32)/2 = 112/2 = 56

If you meant  80 +  [ 8*4 /  2]

then  80 +  [ 8*4 /  2] = 80 + 8*2 = 80 + 16 = 96

4 0
4 years ago
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Whats the answer for 7x-3x^2=85+2x^2=2x and how do you solve it
stich3 [128]
7x-3x^2=85+2x^2+2x\\\\7x-3x^2-85-2x^2-2x =0\\\\ -5x^2+5x-85 =0\ \ | \ divide \ each \ term \ by \ (-5 ) \\\\ x^2-x+17=0\\\\\Delta =   b^2-4ac  = (-1)^2-4 \cdot 1 \cdot17   = 1-68 =-67\\\\Answer : \ \  If \Delta
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4 years ago
The difference of three times a number n half the number is 60
ira [324]
120 is your answer cause half 120 is 60
3 0
3 years ago
PLEASE ANSWER!!
Kamila [148]

Answer:

0.72

Step-by-step explanation:

1000ml in a litre. 12 x 60 ( minutes in an hour) = 720.

720/1000=0.72

3 0
3 years ago
Evaluate the expression a + b for a = 25 and b = 2.
jenyasd209 [6]
25 plus 2 equals 27 ahahhaaishah
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3 years ago
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