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ira [324]
3 years ago
15

PLEASE HELP

Mathematics
1 answer:
borishaifa [10]3 years ago
6 0
The answer should be the second one y=37
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Will give brainliest please help
Triss [41]

Answer:

35C12 = 834451800

Step-by-step explanation:

.............

8 0
3 years ago
On a journey of 600 km, a train was delayed 1 hour and 30 min after having covered 1/4 of the way. To arrive on time at the dest
Sati [7]

Answer:

10 hours

Step-by-step explanation:

(150/x) + 1.5 + (450/(x+15)) = 600/x

Multiply through by x(x + 15):

150(x + 15) + 1.5x(x + 15) + 450x = 600(x + 15)

150x + 2250 + 1.5x^2 + 22.5x + 450x = 600x + 9000

150x + 2250 + 1.5x^2 + 22.5x + 450x - 600x - 9000 = 0

1.5x^2 + 22.5x - 6750 = 0

x = (-22.5 +/- sqrt(22.5^2 - 4(1.5)(-6750))) / (2*1.5)

x = (-22.5 +/- sqrt(506.25 + 40500)) / 3

x = (-22.5 +/- sqrt(41006.25)) / 3

x = (-22.5 +/- 202.5) / 3

x = 180/3 or -225/3

x = 60 or -75

But a negative number doesn't make sense, so therefore x = 60, so the journey took 600/60 = 10  hours.

6 0
3 years ago
Please help!! :D<br><br> Find the value of x.
viva [34]

Answer:

{ \tt{ \frac{x}{46}  =  \frac{(39 + 39)}{39} }} \\ x =  \frac{46 \times (39 + 39)}{39}  \\ x = 92

6 0
3 years ago
Read 2 more answers
Simplify 115(4) help pleaseee
Mice21 [21]

Answer:

I got 460.

Step-by-step explanation:

You multiply 115 by 4. Right?

5 0
3 years ago
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How many tens are in 39
Nadusha1986 [10]

Answer:

3 tens and 9 ones

Step-by-step explanation:

8 0
2 years ago
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