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3 years ago

Simplify 3(x + 2) + 4(x - 5)

Mathematics

1 answer:

Talja [164]3 years ago

4 0

Answer:

Step-by-step explanation:

3X + 6 + 4X + 20

7X + 26

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The figures below are similar. The labeled sides are corresponding.4 yd1 ydP1 = ?P2 = 4 ydWhat is the perimeter of the larger sq

juin [17]

In this case, we'll have to carry out several steps to find the solution.

Step 01:

data:

smaller square

side = 1 yd

larger square:

side = 4 yd

Step 02:

geometry:

perimeter:

larger square perimeter:

perimeter = s + s + s + s = 4s

perimeter = 4(4yd) = 16 yd

The answer is:

perimeter = 16 yd

5 0

1 year ago

demochares has ived a fourth of his life as a boy, a fifth as a youth, a third as a man, and has spend 13 years in his dotage. h

kifflom [539]

Answer: 60 years

Step-by-step explanation:

Let x denotes the age of Demochares .

Time he spent as a boy = $\dfrac{x}{4}$

Time he spent as a youth = $\dfrac{x}{5}$

Time he spent as a man= $\dfrac{x}{3}$

Time he spent in dotage= 13 years

As per given , we have the following equation:

$x=\dfrac{x}{4}+\dfrac{x}{5}+\dfrac{x}{3}+13$

$x=\dfrac{15x+12x+20x}{60}+13$ [Take LCM]

$x=\dfrac{47x}{60}+13$

$x-\dfrac{47x}{60}=13$

$\dfrac{60x-47x}{60}=13$

$\dfrac{13x}{60}=13$

$x=13\times\dfrac{60}{13}=60$

Hence, he is 60 years old.

8 0

4 years ago

1) A couple is expecting the birth of a baby boy. They will name the child by choosing a first name

posledela

Answer:

C. 30

Step-by-step explanation:

We have a list of names that need to be sorted in a specific order. For this, we will use a permutation. This can be found on a scientific calculator, however, I'll be using the equation.

$_nP_r=\frac{n!}{(n-r)!}$

n = total number of objects

r = number of objects selected

In this instance, n will equal 6 since we have 6 different names to choose from and r will equal 2 since we are picking two names. Enter the values into the equation and evaluate.

$_6P_2=\frac{6!}{(6-2)!}=30$

Therefore, there are 30 possible two-part names.

7 0

3 years ago

Divide £10 into ratio 2:3

nlexa [21]

A ratio of 2:3 is the same as 2/3 now we can divide out 2/3 to .6666666 and then multiply by 10 to get 6.666666 or you could just multiply 10 x 2/3 to get 20/3 and then divide to get 6.66666.

7 0

3 years ago

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What is the name of the tide when the sun, moon, and earth are all aligned, causing the greatest pull for highest and lowest tid

Naily [24]

Answer:

Whenever the earth, moon and sun are aligned, the gravitational pull of the moon is augmented by the gravitational pull of the sun, causing larger than average tidal ranges — meaning especially high high tides and very low low tides. These extreme tides are called “spring tides.”

Step-by-step explanation:

7 0

3 years ago

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