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Marat540 [252]
2 years ago
14

Annie built 4/10 of a fort on Saturday and the rest on Sunday. How much if the fort did Annie build on Sunday?

Mathematics
2 answers:
wolverine [178]2 years ago
5 0
6/10............................
ExtremeBDS [4]2 years ago
3 0
4/5 simplified. I hope I helped
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Solve the system using substitution.<br> 3x+5y=15 2x+4y=8
Minchanka [31]

Answer:

x=10

y=-3

Step-by-step explanation:

3x + 5y= 15...eqn. 1

2x + 4y= 8...eqn. 2

multiply eqn. 1 by 2 and eqn. 2 by 3

6x + 10y = 30...eqn. 3

<u>6x</u><u> </u><u>+</u><u> </u><u>12y</u><u> </u><u>=</u><u> </u><u>24...eqn. 4</u>

0 - 2y = 6

divide both sides by the coefficient of y which is -2

<u>- 2y</u> = <u>6</u>

- 2 -2

y= -3

Put y= -3 into eqn. 1

3x + 5(-3) = 15

3x - 15 = 15

3x =15 + 15

<u>3x</u> =<u> 30</u>

3 3

x = 10

Therefore X= 10 and Y= -3

7 0
3 years ago
What is the missing length 11 + = ×16 = ÷2 =209
zzz [600]
11 plus what number equals 16 in order to complete your problem.
3 0
3 years ago
11.1.30<br> How many three-digit even numbers are possible if the leftmost digit cannot be zero?
Ann [662]

The total number of 3 digit even numbers is 450

Step-by-step explanation:

Step 1 :

We need to determine the  number of 3 digit numbers which is even and the leftmost digit is not zero .

The  3 digits with left most digit not equal to zero starts from 100 and goes up to 998

If we consider only the even 3 digit numbers in this interval, this would form an arithmetic progression with the first number a = 100 and the common difference d = 2.

Step 2:

The last number l  in this series is 998 .

So we have

a = 100

l = 998

d = 2

The nth term in the arithmetic progression is given by a + (n-1) d

so substituting the above values we get

100 + (n-1) 2 = 998

2n = 900  => n = 450

Step 3 :

Answer :

The total number of 3 digit even numbers is 450

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3 years ago
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elena-s [515]
The equation of the parallel line is y= -3x -3
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A migrating whale is traveling at an average speed of 5.4 kilometers per hour. How far will the whale travel in 18 hours at this
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97.2 miles just multiply

      5.4
      18
    _____
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