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Andrej [43]
3 years ago
7

Help plsssssss thanksss

Mathematics
1 answer:
sergeinik [125]3 years ago
6 0
60-___=59
60-1=59
So the 9 was distributed
(9x60)-(9x1)
9x1=9
So 540-9=531
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Solve the simultaneous equation:<br>2x+3y=13<br><br>X+2y=9​
Neko [114]

Answer:

2x + 3y = 13

4x - y = -2

In the second equation, subtract 4x from both sides.

-y = -2 - 4x

Divide both sides by -1.

y = 2 + 4x

Put this into the first equation in place of y.

2x + 3(2 + 4x) = 13

Multiply everything in the parenthesis by 3.

2x + 6 + 12x = 13

Combine like terms.

14x + 6 = 13

Subtract 6 from both sides.

14x = 7

Divide 14 on both sides.

x = 7 / 14

x = 0.5

Put this into the second equation in place of x.

4(0.5) - y = -2

2 - y = -2

Subtract 2 from both sides.

-y = -4

Divide both sides by -1.

y = 4

So x = 0.5 and y = 4.

Step-by-step explanation:

8 0
3 years ago
A tortoise and a hare are competing in a race around a 1600-meter track. The arrogant hare decides to let the tortoise have a 78
Sindrei [870]
I am presuming that the question is who won or by how much did the winner win. 

distance equals rate times time, or d = r*t
For the Hare d = 1600 and r = 10
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The hare finished in 160 seconds

For the tortoise d = 1600 - 780 = 820 (due to the head start) and r = 5.3
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Divide both sides by 5.3
t = 154.72 (rounded to the hundredths place)

The tortoise won by 5. 28 seconds (160-154.72)
 
6 0
4 years ago
Read 2 more answers
Use muliplaction and the distributive property to find the quotient : 184 divided by 8??
lapo4ka [179]
The answer to 184/8 is 23. 8 goes into 184 23 times. I hope this helps!
7 0
3 years ago
Undefined<br> undefined<br><br> 0<br> 0<br><br> 2
Feliz [49]
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3 years ago
13 (10+2) could be used to simplify which of the following problems
Strike441 [17]

Answer:

If i'm correct the answer is

156

Step-by-step explanation:

10+2=12

12*13=156

5 0
4 years ago
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