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3 years ago

What is the answer to 3/4(2a − 6) + 1/2 = 2/5(3a + 20)

Mathematics

1 answer:

galina1969 [7]3 years ago

8 0

$is \: it \: \frac{3}{4(2a - 6)} \: \: or \: \frac{3}{4} (2a - 6)$

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There is a bag filled with 4 blue, 3 red and 5 green marbles.

Vsevolod [243]

<h2>The chances of receiving two greens are 5/31.</h2>

Given a bag containing four blue, three red, and five green marbles, the total result is:

Total number of balls = 4 + 3 + 5 = 12

If green is chosen first, the chances of picking a green are 5/12.

The probability that the second stone is green is 4/11 if it is picked and not replaced (4 greens remaining)

The chance of earning two greens is 5/12 4/11.

The chance of getting two greens is 20/132.

The chance of earning two greens is 5/31.

<h3>As a result, the chance of getting two greens is 5/31.</h3>

7 0

2 years ago

The standard form of -36/-216

GrogVix [38]

Answer:

$\frac{1}{6}$

Step-by-step explanation:

$\frac{-36}{-216} \\=\frac{36}{216} \\=\frac{1}{6}$

5 0

3 years ago

Read 2 more answers

If the sales tax in you city is 4.7% and an item cost $164 before tax how much tax would you pay on that item round to the neare

ad-work [718]

So far I used a Sales Tax Calculator and I found out the sales tax would be
$7.71 cents.

I could copy the answer for prooSales Tax Calculator
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8 0

3 years ago

15 points !!!! Diameter Radius Area Circumference of 84mm

SSSSS [86.1K]

Answer:

$lets \: \: \: find \: \: the \: \: radius \\ = 2\pi \: r \\ = 2\pi \: r = 84 \\ = \frac{2\pi \: r}{2\pi } = \frac{84}{2\pi} \\ = r = 13.37mm$

$lets \: \: \: find \: \: the \: \: \: area \\ = \pi {r}^{2} \\ = \pi \times {13.37}^{2} \\ = 561.55 {mm}^{2}$

$lets \: \: \: find \: \: \: the \: \: diameter \\ = d = 2r \\ = d = 2 \times 13.37 \\ = d = 26.74mm$

6 0

3 years ago

Given f(x)=4x+5 and g(x)= x^2+x; find (f∘g)(-5) Please show all steps thank you

Greeley [361]

Answer:

$(f\circ g)(-5)=85$

Step-by-step explanation:

We are given:

$\displaystyle f(x)=4x+5\text{ and } g(x)=x^2+x$

And we want to find:

$(f\circ g)(-5)$

This is equivalent to:

$\displaystyle =f(g(-5))$

So, we will evaluate g(-5) first, which yields:

$\displaystyle g(-5)=(-5)^2+(-5)=25-5=20$

So:

$=f(g(-5))=f(20)$

Then:

$\displaystyle f(20)=4(20)+5=80+5=85$

Therefore:

$(f\circ g)(-5)=85$

6 0

3 years ago