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4 years ago

Mariposa makes a quilt with cloth squares and triangles.

Mathematics

1 answer:

HACTEHA [7]4 years ago

5 0

Answer:

She will need 4 square and 8 triangular pieces.

Step-by-step explanation:

For every 6 pieces of cloth, 2 are squares.

So, for 12 pieces of cloth, the no. of square pieces would be,

$12 \times \frac {2}{6}$

= $2 \times 2$

= 4

As the remaining pieces will be triangles, so the no. of triangular pieces will be, equal to,

(12 - 4) = 8

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Add 5 + (-8). 13 -13 3 -3

AnnyKZ [126]

Answer:

the answer is negative 3 (-3)

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3 years ago

Read 2 more answers

Write the ratio 6 1/9 tons to 6 1/2 tons as a ratio of whole numbers using fractional notation. Write in simplest form.

Tanzania [10]

What's this "13/255/99/2110/117" all about?

Write the ratio described:

6 1/9 tons 55 2 110
--------------- = ----- * ------- = ----------- This is the desired ratio.
6 1/2 tons 9 13 117

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3 years ago

The difference of two numbers is 8. the larger number is three more then twice the second number. Find the numbers

otez555 [7]

Answer:

5 and 13

Step-by-step explanation:

1) If we call the larger number x and the smaller y we can write two equations.

y= x - 8 and x - 3=2y

2) we can substitute the x-8 in for the y in the second equation.

x-3=2(x-8)

3) by distributing and simplifying we find that x=13

4) To find y we need to plug x back into the first equation.

y=13-8

y=5

3 0

4 years ago

A motorboat takes 5 hours to travel 100 miles going upstream. The return trip takes 2 hours going downstream. What is the rate o

nata0808 [166]

Answer:

the boat went 5hours upstream, let's say it has a "still water" speed rate of "b", it went 100miles... however, going upstream is going against the current, let's say the current has a speed rate of "c"

so, when the boat was going up, it wasn't really going "b" fast, it was going " b - c " fast, because the current was eroding speed from it

now, when coming down, the return trip, well the length is the same, so the distance is also 100miles, it only took 2hrs though, because, the boat wasn't coming down "b" fast, it was coming down " b + c " fast, because the current was adding speed to it, so it came down quicker

now, recall your d = rt, distance = rate * time

solve for "c", to see what's the current's speed

what's "b"? well 20+c = b

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3 years ago

In another state, all license plates consist of 6 symbols chosen from the 26 letters of the alphabet and the digits 0-9. How man

Amiraneli [1.4K]

Answer:

11,232,000 license plates are possible.

Step-by-step explanation:

The order in which the symbols are chosen is important(ABC is a different plate than BAC), which means that the permutations formula is used to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

$P_{(n,x)} = \frac{n!}{(n-x)!}$

In this question:

3 letters from a set of 26.

3 digits from a set of 10. So

$T = P_{26,3}P_{10,3} = \frac{26!}{23!} \times \frac{10!}{7!} = 11232000$

11,232,000 license plates are possible.

3 0

3 years ago