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3 years ago

Which of the following best shows the commutative property of addition?

Mathematics

1 answer:

kodGreya [7K]3 years ago

7 0

Answer:

it is A

Step-by-step explanation:

No matter how much you flip the equation around, the end result will be the same. I chose A because it shows exactly what I described 4+5 is the same as 5+4

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A man is on a diet and goes into a shop to buy some turkey slices. He is given 3 slices which together weigh 1/3 of a pound, but

Ghella [55]

The three slices are each approximately 1/9 pound in weight, and, since 2/9 is less than 1/4, he can eat 2 whole slices and be okay. If he wants to eat partial slices, then he could eat 2 1/4 slices, as each slice weighs 4/36 pounds, so 2 slices would equal 8/36 pounds, leaving 1/36 pound left over in his diet, which is a quarter of the third slice.

2.25

6 0

3 years ago

△HFM∼△PST

loris [4]

Answer:

The perimeter of △HFM is 50.75 units

Step-by-step explanation:

<u><em>The correct picture of the question in the attached figure</em></u>

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional, and this ratio is called the scale factor

we have

△HFM∼△PST ----> given problem

step 1

Find the scale factor

Let

z ----> the scale factor

$z=\frac{HF}{PS}$

substitute the given values

$z=\frac{14}{8}=1.75$

step 2

Find the perimeter of triangle PST

Remember that the perimeter of a triangle is the sum of its three length sides

$P=8+9+12=29\ units$

step 3

Find the perimeter of triangle HFM

we know that

If two figures are similar, then the ratio of its perimeters is equal to the scale factor

The perimeter of triangle HFM is equal to the perimeter of triangle PST multiplied by the scale factor

$29(1.75)=50.75\ units$

6 0

4 years ago

Find two mixed numbers so that the sum is seven wholes and two eights and the difference is two wholes and four eigths

Alex_Xolod [135]

Answer:

Step-by-step explanation:

x + y = 7 + 2/8 = 58/8

x - y = 2 + 4/8 = 20/8

Add the equations together

2x = 78/8

x = 39/8

y = x - 20/8 = 19/8

x = 39/8 = 4⅞

y = 19/8 = 2⅜

8 0

3 years ago

A family ordered some candy bars and bags of chips for snacking. The number oof candy bars was twice as much as the number of ba

nikdorinn [45]

Answer:

The family bought 2 bags of chips

Step-by-step explanation:

Let the number of chips bags be = x

The number of candy bars = twice as much as the number of bags of chip

The number of candy bars = 2x

The total cost spent is = $5.50

Therefore cost of all the chips bags + candy bars = 5.50

2x + x = 5.50

3x = 5.50

x = $\frac{5.50}{3}$

x = 1.83

x = 2 (approx)

Thus the number of chips is 2 and the candy bars is 2(2) = 4 bags

4 0

3 years ago

our friend claims that his commute time to work is less than his commute time returning home on the same day. suppose that data

Rzqust [24]

Using a t-distribution calculator, the p-value is of 0.052, hence the range that contains the p-value is an interval between a number less than 0.05 and a number greater than 0.05.

<h3>How to find the p-value of the t-distribution?</h3>

To find the p-value of the t-distribution, three information, which are the inputs on the calculator are needed:

The test statistic.

The number of degrees of freedom.

The tail of the test.

In this problem, we have that:

The test statistic is of t = -1.788.

The number of degrees of freedom is of 10.

We are testing if the mean is less than a value, hence we have a left-tailed test.

Hence, using a calculator, it is found that the p-value is of 0.052, hence the range that contains the p-value is an interval between a number less than 0.05 and a number greater than 0.05.

More can be learned about the t-distribution at brainly.com/question/13873630

#SPJ1

6 0

1 year ago