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2 years ago

What is 13/21 in its simplest form?

Mathematics

1 answer:

marshall27 [118]2 years ago

3 0

It would stay the same because nothing goes in the same

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Write a compound interest function to model each situation. Then find the balance after the given number of years.

Reika [66]

Answer:

Step-by-step explanation:

7 0

2 years ago

Use Cramers Rule to solve the system <br> 2x - 3y = 11<br> -6x + 8y = 34

Nastasia [14]

Step-by-step explanation:

given :

2x - 3y = 11

-6x + 8y = 34

find : the solutions of the system by using Cramers Rule.

solutions:

in the matrix 2x2 form =>

[ 2 -3] [x] [11]

[-6 8] [ y] [34]

D =

| 2 -3 |

|-6 8 |

= 8×2 - (-3) (-6)

= 16-18 = -2

Dx = | 11 -3 |

| 34 8 |

= 11×8 - (-3) (34)

= 88 + 102

= 190

Dy = | 2 11 |

|-6 34 |

= 2×34 - (-6) (11)

= 68 + 66

= 134

x = Dx/D = 190/-2 = -95

y = Dy/D = 134/-2 = -67

the solutions = {-95, -67}

8 0

2 years ago

Read 2 more answers

im stupid. honestly. just help me pls. this is probably really easy but i aint done any maths in over a month so ion remember ho

KATRIN_1 [288]

Answer:

19 coins

Step-by-step explanation:

We know that mean is the sum of all the elements divided by the number of elements there are: m = t/n, where m is the mean, t is the total sum, and n is the number of elements.

Here, we are given the mean number of coins for all 27 + 18 = 45 children is 16, so m = 16 and n = 45. Then:

m = t/n

16 = t/45

t = 720

This t means that the total number of coins that all the boys and girls have is 720 coins.

Now, we also know the mean number of coins for the boys only, which is 14. Since there are 27 boys, then:

m = t/n

14 = t/27

t = 378

This t means the total number of coins all the boys have.

Subtracting 378 from 720, we get 342, which is the total number of coins the girls have. We also know there are 18 girls, so:

m = t/n

m = 342 / 18 = 19

Thus, the mean is 19 coins.

7 0

3 years ago

Read 2 more answers

Chris bought a card for 35¢. He<br> gave the clerk 6 coins. What coins<br> did he give the clerk?

AleksandrR [38]

5 nickels and one dime

8 0

2 years ago

Given f(x)=x^4-7x^3+6x^2+8x+9

posledela

The workings to the answers are in the attachments below. Open them up in a new window to see them in full.

Lowest Point On The Graph:

(4.480878208, -61.32441280)

Highest Point On The Graph:

(1.155422854, 17.23818241)

2nd Lowest Point On The Graph:

(-0.3863010618, 7.23076164)

8 0

3 years ago