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3 years ago

How do you simplify this expression 4x+2(5+3x)

Mathematics

2 answers:

exis [7]3 years ago

5 0

4x+2(5+3x)
4x+10+6x
10x+10

VMariaS [17]3 years ago

4 0

First you multiply the 2 and the 5 which is 10 then you you multiply the 2 by 3x which is 6x so 4x(10+6x) then you multiply the 4x by the 10 and the 4x by the 6 you should get 40x+24x add those together and you get 64x hope this helped

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I really don't getting this

Neporo4naja [7]

All you need to do is insert -4 where the x is located in the functions.
$-4x^2 - 3x - 7$
$-4(-4)^2 - 3(-4) - 7$
$-4(16) + 12 - 7$
$-64 + 12 - 7$
-59
g(-4) = -59

5 0

4 years ago

The wages w earned by an employee vary directly with the number of hours h that are worked. Enrique earned $172.50 for 23 hours

enot [183]

Hopes someone helps because I don’t know!

3 0

3 years ago

What is 48:12 simplified

Zigmanuir [339]

The answer is 4:1

48/12 is 4

5 0

3 years ago

The Grade 6 students at West Village Middle School were asked if they would rather visit the Museum of Math or the Museum of Nat

Ket [755]

The number of Grade 6 students were asked in total is 100 students.

<h3>How to calculate the value?</h3>

Let the number of students who choose Natural History be x.

Since the number of students who chose the Museum of Math was 50 more than the number of students who chose the Museum of Natural History. This will be x + 50

The ratio of students who chose the Museum of Math to students who chose the Museum of Natural History was 3 to 1. The expression will be illustrated thus:

1/3 = x/x+50

Cross multiply

3x = x + 50

Collect like terms

3x - x = 50.

2x = 50

Divide

x = 50/2

x = 25

Also, x + 50 = 25 + 50 = 75

The number of Grade 6 students that were asked will be:

= 25 + 75

= 100

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6 0

1 year ago

Iodine-125 has a half-life of about 60 days.

Murljashka [212]

62.5 mg sample will remain after 240 days

Step-by-step explanation:

Given

Half-life = T = 60 days

The formula for calculating the quantity after n half lives is given by:

$N = N_0(\frac{1}{2})^n$

Here

N is the final amount

N_0 is the initial amount

n is the number of half lives passed

The number of half lives are calculated by dividing the time for which the remaining quantity has to be found by half life

The quantity has to be calculated for 240 days so,

$n = \frac{240}{60}\\n = 4$

Given

$N_0 = 1000\ mg$

Putting the values in the formula

$N = 1000 (\frac{1}{2})^4\\=1000 * \frac{1}{16}\\=\frac{1000}{16}\\=62.5\ mg$

Hence,

62.5 mg sample will remain after 240 days

Keywords: Half-life, sample

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3 0

3 years ago