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3 years ago

Plz help me

Mathematics

2 answers:

HACTEHA [7]3 years ago

6 0

Answer:

Option b.

Step-by-step explanation:

The given table represents the relationship between the number of cups of cereal and the number of cups of raisins in a cereal bar recipe.

Using the table we get

$\dfrac{\text{Number of cups of cereal}}{\text{Number of cups of raisins}}=\dfrac{8}{2}=\dfrac{12}{3}=\dfrac{16}{4}=4$

It means the number of cups of cereal is 4 times the number of cups of raisins in a cereal bar recipe.

Maria plotted an equivalent ratio on the coordinate grid.

The horizontal axis label is Cereal in cups and the vertical axis label is Raisins in cups.

x-coordinate = Cereal in cups

y-coordinate = Raisins in cups

A point is plotted on the ordered pair (80, 10).

We know that number of cups of cereal is 4 times the number of cups of raisins.

$\dfrac{80}{4}=20$

Here number of cups of Cereal is 80. So, the number of cups of raisins must be 20.

If the number of cups of cereal is 80, then the number of cups of raisins will be 20.

Therefore, the correct option is b.

Feliz [49]3 years ago

4 0

Answer: the answer is c or d, im not exaclty positive but i want to say the answer is d.

Step-by-step explanation:

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Jay has $8. he wants to buy a book for $7.50. the sales tax is 6%. does he have enough money? explain your reasoning.

antoniya [11.8K]

Yes he does.

If the sales tax is 6%, that means that he has to pay an extra 6 cents for every dollar.

6x7.5=45

$7.50+$0.45=$7.95

8 0

3 years ago

What is the greater faction than 11/20

Mila [183]

Answer:

Are you looking to calculate whether 2/10 is greater than 11/20? One of the most common calculations you'll make in math is to compare fractions. In this really simple guide, we'll teach you how to compare and determine if 2/10 is bigger than 11/20 and walk you through the step-by-process of how the calculation is made.

As we always do in these tutorials, let's recap and remind ourselves that the number above the fraction line is called the numerator and the number below the fraction line is called the denominator.

Depending on the math problem you want to solve, there are two methods to calculate if 2/10 is larger than 11/20:

Convert the fractions to have the same denominator

Convert the fractions to a decimal number

Let's start with the first method: converting the fractions to the same denominator. First, we'll set up 2/10 and 11/20 side by side so they are easier to see:

Converting Denominator

Our denominators are 10 and 20. What we need to do is find the lowest common denominator of the two numbers. This is the smallest number that can be divided by both 10 and 20. In this case, the lowest common denominator is 20.

If we multiply the first denominator (10) by 2 we will get 20. If we multiply the second denominator (20) by 1 we will also get 20. We also need to multiply the numerators above the line by the same amounts so that the fraction values are correct:

2 x 2

10 x 2

11 x 1

20 x 1

This is what 2/10 and 11/20 looks like with the same denominator:

Now that these fractions have been converted to have the same denominator, we can clearly see by looking at the numerators that 4 is NOT greater than 11 which also means that 2/10 is NOT greater than 11/20.

Converting to Decimal

You can also compare these fractions by first converting them to decimal format. This is a lot faster than working out the lowest common denominator. All we do here is divide the numerator by the denominator for each fraction:

2/10 = 0.2

11/20 = 0.55

Now that these fractions have been converted to decimal format, we can compare the numbers to get our answer. 0.2 is NOT greater than 0.55 which also means that 2/10 is NOT greater than 11/20.

Hopefully this tutorial has helped you to understand how to compare fractions and you can use your new found skills to compare whether one fraction is greater than another or not!

4 0

2 years ago

What is a recriprocal of 25

Arturiano [62]

Answer:

1/25

The fraction for 25 would be 25/1 so the recripocal of 25/1 would be 1/25. The reciprocal is the numerator and denominator switched.

8 0

2 years ago

Read 2 more answers

An office manager needs to decide between two tables for the conference room. One is rectangular, 5 feet wide by 10 feet long. T

7nadin3 [17]

Answer:

The rectangular 5 x 10 table.

Step-by-step explanation:

To find which table the office manager needs to get so he can sit more people at it is decided by one factor, the perimeter. The rectangular one, which is 5 x 10 the perimeter is (5 x 2) + (10 x 2) = 10 + 20 = 30. The circular one can be calculated by the equation $\pi * d$ where d = 8. Putting $/pi$ x 8 in my calculator and it comes out approximately at 25.132, having a less amount of perimeter space to work with, making the rectangular table the way to go.

6 0

3 years ago

It is given by the formula ph=-log[h+] find the ph of each substance. A)baking soda:[H+]=10^-8 per liter

maw [93]

Answer:

pH = 8

Step-by-step explanation:

Formular is given as;

pH = -log[H+]

A)baking soda:

[H+] = 10^-8

Upon inserting it into the formular;

pH = -log (10^-8)

pH = - ( -8)

pH = 8

7 0

3 years ago