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3 years ago

Can you add a negative and positive fraction?

1 answer:

8 0

When you are adding or subtracting a negative fraction, you usually want to consider the numerator as negative. The method is just the same, except now you may need to add negative or positive numerators. Example 1: ... To add the fractions with unlike denominators, rename the fractions with a common denominator.

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Manuel has 15 goldfish. This is 6 more than Quinn has. How many goldfish does a Quinn have?

skad [1K]

If you were to subtract 6 from 15 you would see that Quinn would have 9 gold fish, 9+6= 15

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4 years ago

The graph shows the speed of sam’s car over time.

Flauer [41]

Answer:

The car is slowing down.

Step-by-step explanation:

The graph compares the speed of Sam's car to the time that has passed. In section C, the graph is decreasing; this means the dependent variable, speed, is decreasing as the independent variable, time, is increasing.

His car is slowing down.

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3 years ago

Read 2 more answers

A farmer wants to know how many of his cows have no spots. He has 200 cows total. He takes a random sample of 40 cows. Of these,

slavikrds [6]

Answer:

The farmer can predict that 55 cows in the entire population have no spots.

Step-by-step explanation:

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3 years ago

The note A has a frequency of 1,760 hertz. The note D has a period of 1,175 hertz. Find theratio of A to D to two decimal places

valina [46]

Ratios

Note A has a frequency of

fa=1,760 Hz

Note D has a period of 1,175 hertz

(the previous data should be frequency, not period)

We are required to find the ratio of A to D. Let's call it r:

$r=\frac{1,760^{\prime}}{1,175}$

Dividing: r = 1.4978. Rounding to two decimal places:

r = 1.50

Now to express the answer in integer ratio form, we need to simplify the fraction.

First, we divide by 5 up and down:

$r=\frac{352^{\prime}}{235}$

There are no more common divisors for both numbers, thus the integer ratio form is r = 352/235

7 0

2 years ago

What 60% of what number is 80? How do I figure this out?

Fudgin [204]

80 is 60% of 133.333 repeating, or rounded to 133. You can find this by doing 80 / 60 = 1.333 repeating. Then, you would do 1.333 x 100 = 133.333 repeating.

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3 years ago