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3 years ago

Write a word problem that involves combining three equal groups

Mathematics

1 answer:

Mkey [24]3 years ago

4 0

Answer:

Mia has three bags of marbles. The number of marbles in each bag is 10. How many marbles she has in total?

Step-by-step explanation:

Consider the provided information.

We need to write a word problem that involves combining three equal groups.

Mia has three bags of marbles. The number of marbles in each bag is 10. How many marbles she has in total?

In this above problem, we are combining three equal groups of marbles where each group has 10 marbles, therefore:

Total number of marbles are = 3 × 10 = 30 marbles

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A group of students are intending to offer a present to a friend. If each one pays 3000 LL.

Elanso [62]

Answer:

There are 8 friends and the presents costs $30,000

Step-by-step explanation:

Let x be the number of students and y be the price of the present. Their contributions can be expressed as:

$3000x=y-6000\ \ \ \ \ \ ...i\\\\4000x=y+2000\ \ \ \ \ \ \ \...ii$

#Make y the subject in equation i then substitute in ii:

$y=3000x+6000\\\\\#substitute \ in \ ii\\\\4000x=y+2000\\\\4000x=(3000x+6000)+2000\\\\1000x=8000\\\\x=8\\\\y=3000\times 8+6000\\\\y=30000$

Hence, there are 8 friends and the present is priced at $30,000

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3 years ago

If the speed of sound is 1230 km/h, calculate the speed of sound in metres per second.

V125BC [204]

Answer:

342 m/s

Step-by-step explanation:

1230x 1000 = 1230000

1230000 / 60 = 20500

20500 / 60 = 341.666 = 342

5 0

3 years ago

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You are rolling two dice at the same time. What is the probability of rolling a sum of 5 or 9?

baherus [9]

You can get a 5 by rolling :
1 and 4
2 and 3
3 and 2
4 and 1

You can get a 9 by rolling :
3 and 6
4 and 5
5 and 4
6 and 3

There are 36 possible outcomes, hence your probability is $\frac{4\cdot2}{36}=\boxed{\frac29}$

8 0

3 years ago

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Equation for (-1,9) and (-0,-1)

alex41 [277]

Answer:

I think it's 8

Step-by-step explanation:

you take away -1 because its the same

then you count units between 0 and 9

3 0

3 years ago

What number is: a composite, has 4 factors and some of it's multiples are 44 & 88?

Nadya [2.5K]

A delightful question.
I think I have it.

The number is 22 .

Its factors are 1, 2, 11, and 22 .

3 0

3 years ago