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3 years ago

How can I subtract 9 2/5 - 8 4/5

Mathematics

2 answers:

den301095 [7]3 years ago

8 0

Step-by-step explanation:

okay so let's convert this from mixed to improper fraction

9 2/5= 47/5

8 4/5= 44/5

47/5-44/5= 3/5

monitta3 years ago

7 0

Answer:

0.6

Step-by-step explanation:

First make them into decimals so.

9.4 - 8.8 = 0.6

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Ira Lisetskai [31]

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4 years ago

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9966 [12]

Answer:

D) b = $\frac{S-2ac}{2a + 2c}$

Step-by-step explanation:

First, move all the terms that do not include b to the left side with S:

S = 2ab + 2bc + 2ac

S - 2ac = 2ab + 2bc

Now, factor out 2b from the right side:

S - 2ac = 2b(a + c)

Divide both sides by 2(a + c):

b = $\frac{S-2ac}{2(a + c)}$

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4 years ago

Danila breeds peregrine falcons

WINSTONCH [101]

complete question:

Danila breeds peregrine falcons. She recorded the breadth (in mm) of each egg and the mass (in g) of the falcon

chick that hatched from it.

After plotting her results, Danila noticed that the relationship between the two variables was fairly linear, so she

used the data to calculate the following least squares regression equation for predicting the mass of the chick

from the breadth of the egg:

y = -47 + 2x

What is the residual of a 29 g falcon chick who hatches from an egg with a breadth of 40 mm ?

Answer:

residual = -4

Step-by-step explanation:

Residual is the difference between the actual mass of the falcon chick and the predicted mass of the falcon chick.

residual = actual - predicted

The square regression is used to evaluate the predicted mass of the falcon chick.

actual mass = 29 g

Predicted mass can be gotten from the regression line.

y = -47 + 2x

y = -47 + 2(40)

y = - 47 + 80

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Predicted mass of 40 mm breadth of egg from the regression line = 33 g

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3 years ago

The probability of a football team winning a game is three fifths. If they play 45 games in a season, how many games would you e

Charra [1.4K]

Answer:

27 games

Step-by-step explanation:

The probability of them winning is 3 out of 5 games.

First, multiply 45 by $\frac{3}{5}$

$\frac{45}{1} *\frac{3}{5}$

$\frac{135}{5}$

27 games.

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You could also just multiply 45 by 3 then divide by 5. Mostly the same thing

I hope this helps!

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3 years ago

Cora is building towers of two different sizes using prism- and pyramid-shaped blocks. The diagram shows the ratio of prisms and

Musya8 [376]

There are 20 blocks needed for tower A, and 43.75 blocks needed for tower B

From the tape diagrams, we have the following ratio

Prism : Pyramid = 4 : 1

From the table, we have:

Tower A = 16 prisms

So, the ratio becomes

16 : Pyramid = 4 : 1

Multiply the ratio on the right-side by 4

16 : Pyramid = 16 : 4

By comparison, we have:

Pyramid = 4

This means that, 4 pyramid blocks are needed for tower A

So, the total number of blocks needed is:

Total = Pyramid + Prism

This gives

Total = 4 + 16

Evaluate the sum

Total = 20

Hence, there are 20 blocks needed for tower A

For table B, we have:

Tower A = 35 prisms

So, the ratio becomes

35 : Pyramid = 4 : 1

Express as fractions

$\frac{Pyramid}{35} = \frac 14$

Multiply through by 35

Pyramid = 8.75

This means that, 8.75 pyramid blocks are needed for tower B

So, the total number of blocks needed is:

Total = 8.75 + 35

Evaluate the sum

Total = 43.75

Hence, there are 43.75 blocks needed for tower B

How can I subtract 9 2/5 - 8 4/5 ​

How can I subtract 9 2/5 - 8 4/5