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3 years ago

10

Which ratio correctly compares 5 m to 100 cm, when the lengths are written using the same units? Note: 100 cm = 1 m 5:15:1 1:51:

5 20:120:1 1:20

2 answers:

Darina [25.2K]3 years ago

7 0

5m:100cm? Is it that I hope so

postnew [5]3 years ago

4 0

The answer is 5 : 1 i know this because i took this question on a quiz and its correct hoped i helped =)

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In each of the following, find all real numbers x that satisfy the given equation. If none satisfy the equation, then state th

Alexus [3.1K]

Answer:

The solution is $x = -\frac{5}{6}$

Step-by-step explanation:

We solve this question using exponential properties.

We have that:

$(\frac{25}{4})^{3x} = \frac{32}{3125}$

Simplifying:

$(\frac{5^2}{2^2})^{3x} = \frac{2^5}{5^5}$

$([\frac{5}{2}]^{2})^{3x} = (\frac{2}{5})^{5}$

$(\frac{5}{2})^{6x} = (\frac{2}{5})^{5}$

Changing the numerator and denominator in the right side:

$(\frac{5}{2})^{6x} = (\frac{5}{2})^{-5}$

Since both bases are equal:

$6x = -5$

$x = -\frac{5}{6}$

The solution is $x = -\frac{5}{6}$

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3 years ago

He sum of a number and twenty-one is sixty-four.

OleMash [197]

Answer:

43

Step-by-step explanation:

Let's call this number x. The word sum means addition, so we can write x + 21 = 64. When we subtract 21 from both sides, we get x = 43. Hope this helps!

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3 years ago

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Amy and her sister are making lemonade for the school dance. Their recipe makes 2 quarts of lemonade. If they make 35 times the

Sergio [31]

35 times 2 equals 70, therfor your answer is 70

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3 years ago

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What’s the correct formula??

r-ruslan [8.4K]

I think the answer is A
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3 years ago

a silkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their

Scorpion4ik [409]

Answer:

Possible lengths of the silk fibre 'x' are 100, 75, 60, 50 and 30 yards respectively.

Step-by-step explanation:

Let the length of the silk fiber = x yards.

Let the number of silk fibres = a.

It is given that the silk fibers between 3 to 10 yards are combined to form a silk thread of 300 yards.

So, we get the equation,

$ax=300$ , where $3\leq a\leq 10$

i.e. $x=\frac{300}{a}$ , $3\leq a\leq 10$

So, the possible values of 'a' are 3, 4, 5, 6 an 10.

Thus, the possible lengths of the silk fibre 'x' are 100, 75, 60, 50 and 30 yards respectively.

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3 years ago