All categories

2 years ago

7+2x/3 =5 what’s the answer

Mathematics

2 answers:

Jobisdone [24]2 years ago

3 0

<h3>Answer:</h3>

<h3>Step-by-step explanation:</h3>

$\sf \frac{7 + 2x}{3} = 5$

$\sf = 7 + 2x = (5 \times 3)$

$\sf = 7 + 2x = 15$

$\sf = 2x = 15 - 7$

$\sf = 2x = 8$

$\sf = \: \: \: x = 8 \div 2 \\ \sf x = 4$

Amiraneli [1.4K]2 years ago

3 0

Step-by-step explanation:

$\begin{aligned}\frac{7+2x}{3}&=5\\7+2x&=5\times 3\\7+2x&=15\\2x&=15-7\\2x&=8\\x&=\frac{8}{2}\\x&=\boxed{4}\end{aligned}$

You might be interested in

Anyone know how to get 96cm^2 because I got it wrong and that was the correct answer. Show me how to get D for number seven with

blsea [12.9K]

Area around
we see that all side are 4 legnth
therfor we have a cube
cube has 6 sides tha are sqyares

area of squaer=side^2
side=4

so
SA=6s^2
SA=6(4)^2
SA=6(16)
SA=96 cm^2

what you did is you found the volume

7 0

3 years ago

Read 2 more answers

Integral of x"2+4/x"2+4x+3

dolphi86 [110]

I'm guessing you mean

$\displaystyle \int\frac{x^2+4}{x^2+4x+3}\,\mathrm dx$

First, compute the quotient:

$\displaystyle \frac{x^2+4}{x^2+4x+3} = 1 + \frac{4x-1}{x^2+4x+3}$

Split up the remainder term into partial fractions. Notice that

<em>x</em> ² + 4<em>x</em> + 3 = (<em>x</em> + 3) (<em>x</em> + 1)

Then

$\displaystyle \frac{4x-1}{x^2+4x+3} = \frac a{x+3} + \frac b{x+1} \\\\ \implies 4x - 1 = a(x+1) + b(x+3) = (a+b)x + a+3b \\\\ \implies a+b=4 \text{ and }a+3b = -1 \\\\ \implies a=\frac{13}2\text{ and }b=-\frac52$

So the integral becomes

$\displaystyle \int \left(1 + \frac{13}{2(x+3)} - \frac{5}{2(x+1)}\right) \,\mathrm dx = \boxed{x + \frac{13}2\ln|x+3| - \frac52 \ln|x+1| + C}$

We can simplify the result somewhat:

$\displaystyle x + \frac{13}2\ln|x+3| - \frac52 \ln|x+1| + C \\\\ = x + \frac12 \left(13\ln|x+3| - 5\ln|x+1|\right) + C \\\\ = x + \frac12 \left(\ln\left|(x+3)^{13}\right| - \ln\left|(x+1)^5\right|\right) + C \\\\ = x + \frac12 \ln\left|\frac{(x+3)^{13}}{(x+1)^5}\right| + C \\\\ = \boxed{x + \ln\sqrt{\left|\frac{(x+3)^{13}}{(x+1)^5}\right|} + C}$

3 0

2 years ago

When calculating a loan’s effective rate, if the interest compounds every two months, what value of n do you plug into your equa

klemol [59]

<span>If the interest is comounded every 2 months then you will apply the interest 6 times in a year. So the value of n that you will plug into your equation is 6 because there 12 months a year then it wll be compounded every 2 months</span>

5 0

3 years ago

Read 2 more answers

If you can buy two cans of pinapple

Kazeer [188]

Step-by-step explanation:

3.25÷2=1.625

19.5÷1.625=12

4 0

2 years ago

The number of employees working for Widget Wonders in 1997 was 17,697, with an expected decrease of 2.2% per year. At the percen

Veronika [31]

In 1997 = 17697

Because, each year, the number of employees is expected to decrease by 2.2%, find 2.2% of 17697 and subtract from the number.

2.2/100 x 17697 = 38933.4/100 = 389.334

^that was calculating 2.2% of 17697. Now we subtract:

17697.000
- 389.334
17307.666 =

Round to the nearest whole number = 17308

Answer: in 1998, the expected number of workers is 17308

4 0

3 years ago