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3 years ago

Find the value of x.

Mathematics

1 answer:

alisha [4.7K]3 years ago

4 0

Answer:

X=5

Step-by-step explanation:

the sum has to equal 180 because its a linear pair,

10×5=50

26×5=130

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Plzz help me with this, which one is it?:

mr_godi [17]

Answer:

Step-by-step explanation:

all you need to know is the calculusperciputation

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3 years ago

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Mrs. Lang is 4 times as old as her daughter Jill. The sum of their ages is 60 years. Set up the two equations that can be used t

KatRina [158]

Answer:

The two equations that can be used to find each of their ages are $x=4 \times y$ and $x+y=60$ .

Step-by-step explanation:

We are given that Mrs. Lang is 4 times as old as her daughter Jill. The sum of their ages is 60 years.

Let the age of Mrs. Lang be 'x years' and the age of her daughter Jill be 'y years'.

Now, according to the question;

The first condition states that Mrs. Lang is 4 times as old as her daughter Jill, that means;

$x=4 \times y$ ----------------- [equation 1]

The second condition states that the sum of their ages is 60 years, that means;

$x+y=60$

$4y + y = 60$ {using equation 1}

$5y=60$

$y=\frac{60}{5}$

y = 12 years

Now, putting the value of y in equation 1 we get;

$x=4 \times y$

$x= 4 \times 12$ = 48 years

Hence, the age of Mrs. Lang is 48 years and her daughter Jill is 12 years old.

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3 years ago

How would I answer this: How many minutes are in a 30-day month.... use vertical multiplication to get the right answer

cluponka [151]

Answer:

There are 43200 minutes in a 30-day month.

Step-by-step explanation:

We know that:

60 minutes = 1 hour

24 hours = 1 day

Thus to determine the minutes in a 30-day month, let us first determine the number of hours in the month.

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120

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The 30-day month has a total of 720 hours.

So that the number of minutes that make up 720 hours can be determined by;

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3 years ago

SH What is the greatest common factor (GCF) of 35 and 28?

Brilliant_brown [7]

Answer: 7

Step-by-step explanation:

We found the factors and prime factorization of 28 and 35. The biggest common factor number is the GCF number. So the greatest common factor 28 and 35 is 7.

Hope this helps :)

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3 years ago

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If jobs arrive every 15 seconds on average, what is the probability of waiting more than 30 seconds?

Aleksandr [31]

Answer: 0.14

Step-by-step explanation:

Given: Mean : $\lambda=15\text{ per seconds}$

In minutes , Mean : $\lambda=4\text{ per minute}$

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$f(t)=\lambda e^{-\lambda t}, \text{ for }x\geq0$

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Hence, the probability of waiting more than 30 seconds = 0.14

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3 years ago