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3 years ago

And can y’all help explain this

Mathematics

1 answer:

Flauer [41]3 years ago

7 0

Answer:

21.78

Step-by-step explanation:

The fraction 4/5 has the decimal value 0.8. The mixed number 25 4/5 is equivalent to the decimal number 25.8.

When you do the subtraction, you may want to add a trailing zero to 25.8 to make the same number of decimal places as 4.02. Then you have ...

25.80 -4.02

and subtraction proceeds in the normal way.

25.80 -4.02 = 21.78

_____

It is useful to memorize the decimal equivalents of fractions with denominators of 10 or less. It is also helpful to note that denominators of 2 and 5 and their multiples can be translated directly to fractions with denominators of 10 or other powers of 10:

$\dfrac{4}{5}=\dfrac{4\cdot 2}{5\cdot 2}=\dfrac{8}{10}$

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lutik1710 [3]

It is asking to find the cost (c) for (p) number of pizzas at $8 each. So 1 pizza would be $8 and 2 would be 2 * 8 = 16 and 3 would be 3 * 8 = 24 and 4 would be 4 * 8 = 32 and p would be p * 8 = c. So the answer is:
c = 8p

15. a ratio is a fraction comparing numbers showing how they relate to each other.

if she mixed 3 ounces of blue and 2 of yellow, this would make 5 ounces of green paint. So the ratio is 3/2. to get 20 ounces of green paint she would have to do this mixture 4 times since she gets five each time. If she mixes 2 ounces of yellow paint four times, she would use 4 * 2 = 8 ounces of yellow painy

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3 years ago

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Pls help me answer the question attached

Ganezh [65]

Mai - 6 and 3/4 is 6.75 miles
Noah - 4 and 1/2 is 4.5 miles

To find out how many times the length of Noah’s bike ride was Mai’s, you would divide so

6.75/ 4.5 = 1.5

Therefore the answer would be
b) 3/2 times as far

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3 years ago

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Driede drew a quadrilateral with 4 right angles and opposite sides of the same length. Name all the kinds of polygons that could

DiKsa [7]

Answer:

Step-by-step explanation:

Given that Driede drew a quadrilateral with 4 right angles and opposite sides of the same length.

Since quadrilateral have all angles 90 degrees it can be called a rectangle

2) Since opposite sides equal, it can be called a parallelogram

3) since one pair of sides parallel, it can be called trapezium

4) Since all sides are equal it can be called rhombus

5) since adjacent sides of two pairs are equal it can be called a kite

6) Since all sides and all angles are equal, it is also a square

In general it can also be called a quadrilateral.

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4 years ago

Ross ate 3/10 of a pumpkins pie. Brady ate 6/10 of asane pie. How much of the pie did Ross and Brady eat altogether?

Anton [14]

Hi there!

Since the denominators are the same in both fractions, this makes solving the problem super easy! All we need to do is to add the numbers across the fractions (numerator + numerator). We do not add the denominators together because they are the same.

WORK:
3/10 + 6/10 = 9/10

ANSWER:
Ross and Brady ate 9/10 of the pie together.

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!

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3 years ago

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While mining Fred found a large metal bar that contained 24 ounces of nickel. Fred also determined that the bar was 80% nickel.

frutty [35]

Answer:

Not that I'm a chemistry expert but mathematically,The total weight of the bar is directly proportional to the known weight of the bar and the given percentage. I worked it out and found that the the total weight of the bar is 30 ounces. This is how I did it

Step-by-step explanation:

80:24

100:n

80(n)=100×24

A little equation and after it's solve the variable (n) will be equal to 30

The unit is added after calculations so that's how the answer is 30 ounces

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3 years ago