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galben [10]
2 years ago
15

Can anyone please help

Mathematics
1 answer:
lilavasa [31]2 years ago
3 0

Answer:

Adult tickets = $73.5

Child tickets = $20.5

Step-by-step explanation:

{ \rm{3x + 5y = 50 -  -  -  \{eqn \: 1 \}}} \\ { \rm{x + 5y = 31 -  -  -  \{eqn \: 2 \}}} \\

• Subtract eqn 2 from eqn 1:

{ \rm{2x = 21}} \\ { \rm{x = 10.5}}

{ \rm{10.5 + 5y = 31}} \\ { \rm{5y = 20.5}} \\ { \rm{y = 4.1}}

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Resolve in factors. I) x⁴+x²+1​
masha68 [24]

Answer:

let a = x² (a ≥ 0), we have the equation:

a² + a + 1 = 0

⇔ a² + 2.1/2.a + 1/4 + 3/4 = 0

⇔ (a + 1/2)² = -3/4 (unreasonable)

=> no solutions

Step-by-step explanation:

6 0
3 years ago
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which of the following temperatures is most precise? A) 45 degrees. B) 89.7 degrees. C) 80 degrees. D) 32.45 degrees
xxTIMURxx [149]
32.45 is most precise . Precise means how many points after decimal is reached. Accurate means how close your measurement of a value is that to the true value. Eg :Say 35cm is the measure of length of a body and a person got the measurement to be 34 . Another person2 got the measurement to be 32.88 . So in this case the first person has an accurate answer as he is close to the true value 35 , but person2 is more precise as he has two decimal places.
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3 years ago
3/8x - 1/4 =1/2<br><br> Please hurry
4vir4ik [10]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
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6 0
3 years ago
6 multiplication problems that ar involved in the solving of 325×89​
gogolik [260]

325*89.1

Let's decompose this into:

325 = 300 + 25

89.1 = 80 + 9 + 0.1

Then we have the multiplication:

(300 + 25)*(80 + 9 + 0.1)

Let's distribute the multiplication:

300*80 + 300*9 + 300*0.1 + 25*80 + 25*9 + 25*0.1

So now we have 6 multiplications that are a lot easier to solve than the initial one that we had.

Then the list of six multiplications involved in solving this problem are:

300*80 = 24,400

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Now we add all of those and get:

325*89.1 = 24,400 + 2,700 + 30 + 2,000 +  225 + 2.5 = 28,957.5

4 0
3 years ago
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