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3 years ago

If 4 is subtracted from twice a number, the result is 10 less than the number. Find the number.

Mathematics

2 answers:

Alina [70]3 years ago

4 0

Answer: -6

Step-by-step explanation:

Let x= the number

2x-4=x-10 ⇔ according to the statement

x-4=-10 ⇔ subtraction property of equality (subtract x from both sides)

x=-6 ⇔ addition property of equality (add 4 on both sides)

Hope this helps!! :)

Please let me know if you have any question

saveliy_v [14]3 years ago

3 0

Answer:

n = -6

Step-by-step explanation:

Alright so this can be solved by using variables. Let's say n = number.

4 subtracted from twice a number can be represented as 2n - 4.

10 less than the number can be represented as n - 10.

Since the outcome of the first expression is equal to the second, we can set them equal to each other to solve:

2n - 4 = n - 10.

Then you isolate n by adding 4 to both sides...

2n = n - 6,

... then subtracting n from both sides:

n = -6

There you go!

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Consider a fair coin which when tossed results in either heads (H) or tails (T). If the coin is tossed TWO times 1. List all pos

Volgvan

Answer:

Sample space = {(T,T), (T,H), (HT), (HH)}

Step-by-step explanation:

We are given a fair coin which when tossed one times either gives heads(H) or tails(T).

Now, the same coin is tossed two times.

1) All the possible outcomes

Tails followed by tails

Rails followed by heads

Heads followed by a tail

Heads followed by heads

2) Sample space

{(T,T), (T,H), (HT), (HH)}

3) Formula:

$Probability = \displaystyle\frac{\text{Favourable outcome}}{\text{Total number of outcome}}$

Using the above formula, we can compute the following probabilities.

Probability((T,T)) = $\frac{1}{4}$

Probability((T,H)) = $\frac{1}{4}$

Probability((H,T)) = $\frac{1}{4}$

Probability((H, H)) = $\frac{1}{4}$

Probability(Atleast one tails) = $\frac{3}{4}$

Probability(Atleast one heads) = $\frac{3}{4}$

Probability(Exactly one tails) = $\frac{2}{4}$

Probability(Exactly one heads) = $\frac{2}{4}$

4 0

3 years ago

Please help! Solve for x.

WITCHER [35]

Answer

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Step-by-step explanation:

7 0

3 years ago

Which equation models this problem?

Furkat [3]

So unit price times #of cloths=final price

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so D is the right answer

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3 years ago

Read 2 more answers

A circle with radius of \greenD{2\,\text{cm}}2cmstart color #1fab54, 2, start text, c, m, end text, end color #1fab54 sits insid

HACTEHA [7]

Answer:

119.43cm^2

Step-by-step explanation:

The computation of the area of the shaded region is shown below:

As we know that

= Area of the rectangle - Area of the circle

where,

Area of rectangle is

$= length \times breadth$

$= 11\times 12$

= 132 cm^2

And, the area of the circle is

$= \pi\times r^2\\\\ = \frac{22}{7} \times 2^2\\\\ = \frac{88}{7} cm^2$

Now the area of the shaded region is

$= 132 cm^2- \frac{88}{7}cm^2$

= 119.43cm^2

We simply deduct the area of the circle from the area of the rectangle so that the area of the shaded region.

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Answer:

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