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stira [4]
3 years ago
9

Can the expression be used to solve 29x14? yes or no for each expression a(9x4)+(20x4)+(9x1)+(20x1) yes No

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
7 0

no because

29×14 is 406

9×4

20×4

9×1

<u>20×1</u>

49×10 490

490 and 406 aren't equal

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Describe how you can check to see if two ratios are proportional. Use the following ratios to explain your thinking: 2/3 12/18
harkovskaia [24]

Answer:

Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.

Step-by-step explanation:

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2 years ago
The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 33
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Answer:

The estimate for the proportion of Americans over 33 who smoke is 0.28.

Step-by-step explanation:

Proportion of Americans over 33 who smoke.

Number who smoke divided by the size of the sample.

In this question:

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913 don't smoke, so 1267 - 913 = 354 smoke. Then

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The estimate for the proportion of Americans over 33 who smoke is 0.28.

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2 years ago
Mackenzie has a bag that contains 6 red marbles, 4 blue marbles, and 14 yellow marbles. If she chooses one marble from the bag,
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10 of the 24 marbles in the bag are not yellow.

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6 0
3 years ago
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Plzz help me I am helpless
horrorfan [7]

Answer: 0.25

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You need to convert the cm³ into m³

\frac{250,000(cm)(cm)(cm)}{}* \frac{1(m)}{100(cm)} * \frac{1(m)}{100(cm)}* \frac{1(m)}{100(cm)} = \frac{250,000m^{3}}{1,000,000}

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3 years ago
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find the value of each variable in the circle to the right. the dot represents the center of the circle.
gladu [14]

We have been given an image of a circle. We are asked to find the value of each variable.

We can see that angle b corresponds to diameter of circle. We know that the measure of an angle that is inscribed to the diameter of a circle is 90 degrees . Therefore, the value of b will be 90.

we can see that angle is an inscribed angle of arc 99 degrees. We know that measure of an inscribed angle is half the measure of inscribed arc.

a=\frac{1}{2}\cdot 99

a=49.5

Therefore, the value of a is 49.5 units.

We know that measure of all angles of a triangle is 180 degrees. The measure of 3rd angle will be half the measure of c, so we can set an equation as:

a+b+\frac{1}{2}c=180

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139.5+\frac{1}{2}c=180

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\frac{1}{2}c\cdot 2=40.5\cdot 2

c=81

Therefore, the value of c is 81.

3 0
2 years ago
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