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2 years ago

15

Three people selected a number. They could choose either 1 or 2. Their results were combined to give a 3-digit number. (For exam

ple, if they all chose 1, the 3-digit number was 111.) How many different 3-digit numbers were possible? a.3 b.8 c.4

1 answer:

nadezda [96]2 years ago

5 0

I believe b. 8 is the right answer
111
112
122
121
211
212
222
221

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100 people are running a marathon. How many different ways can the runners finish 1st, 2nd, and 3rd place?

andrew11 [14]

Answer:

970,200

Step-by-step explanation:

In a 100 man race, how many runners have the chance to finish first?

Answer 100.

Now that 1 person is first, how many runners could be second? Well, there are still 99 runners left, and any one of them could be second.

Answer 99.

How many can be third? Using the same idea as above, once one person is first and another is second, that leaves 98 people still running and trying for third. So how many can be in third?

Answer 98.

Now you need to do the math.

100 × 99 × 98 = 970,200

So there are 970,200 different ways.

Hope this helps!! Brainliest :) ?

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2 years ago

Angle MNP ~ Angle HJK. <br> Both triangles are isosceles. if m

valina [46]

Answer:

Angles H, J, M, N

Step-by-step explanation:

Since m<p is 90 degrees it must be the largest angle so both triangles have angle 45-45-90. m<P is equal to m<K. This means that angle h, j, m, and n are equal.

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2 years ago

Read 2 more answers

From long experience, it is known that the time it takes to do an oil change and lubrication job on a vehicle has a normal distr

Delicious77 [7]

7 minutes is the answer i think but dont quote me on that

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3 years ago

A kangaroo hopped \dfrac13 3 1 ? of the distance to the lake with her baby in her pouch. She hopped the remaining 70407040 yards

kogti [31]

Answer:

6 miles.

Step-by-step explanation:

Let x be the total distance hoped by Kangaroo to the lake.

We have been given that a kangaroo hopped 1/3 of the distance to the lake with her baby in her pouch.

She hopped the remaining 7040 yards without her baby in her pouch. This means that 2/3 of total distance (x) is 7040. We can represent this information in an equation as:

$\frac{2}{3}*x=7040$

Let us solve for x by multiplying both sides of our equation by 3/2.

$\frac{3}{2}*\frac{2}{3}*x=\frac{3}{2}*7040$

$x=3*3520$

$x=10560$

Therefore, the total distance hoped by the kangaroo is 10560 yards.

1 mile = 1760 yards

Let us convert this distance in miles by dividing 10560 yards by 1760.

$\text{The kangaroo hoped}=\frac{10560\text{ yards}}{\frac{1760\text{ yards}}{\text{Mile}}}$

$\text{The kangaroo hoped}=\frac{10560\text{ yards}}{1760}\times \frac{\text{ Mile}}{\text{ yards}}$

$\text{The kangaroo hoped}=\frac{10560}{1760}\times\text{ Mile}$

$\text{The kangaroo hoped}=6\text{ Miles}$

Therefore, the kangaroo hoped 6 miles to the lake.

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2 years ago

Mrs. Parson baked 25 cookies. 4 fifths of the cookies were oatmeal. How many oatmeal cookies did Mrs. Parson bake?

lutik1710 [3]

Answer:

I think the answer is 20 ..........

Step-by-step explanation:

5

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2 years ago