Solve the proportion 3x/10=9/4

2 answers:

8 0

X =7.5
this is because you would cross multiply to get 12x=90. You would have to isolate the variable by dividing both sides by 12. that leaves you with x=7.5

OlgaM077 [116]3 years ago

5 0

Hello There!

First solve the numerical side:
9/4 = 2.25
So now we know:
3x/10 = 2.25
Multiply both sides by 10:
3x/10 x 10 = 2.25 x 10
Simplify it:
3x = 22.5
Divide both sides by 3:
3x/3 = 22.5/3
Simplify it:
x = 7.5

3(7.5)/10 = 9/4

Hope This Helps You!
Good Luck :)

- Hannah ❤

You might be interested in

Which are solutions to the equation below?

mojhsa [17]

The answers would be E and F -6 and -3

3 0

3 years ago

Read 2 more answers

What is 2 2/3×3 1/4 as a fraction form

fgiga [73]

The fraction form is 26/3 or 8 2/3

8 0

2 years ago

Elaine is 8 years younger than her brother Tyler. The sum of their ages is 34. Define a variable and then write and solve an equ

Damm [24]

Answer: Elaine=13 years old Tyler=21 years old

Step-by-step explanation:

Let x = Elaine's age, so her brother Tyler's age = x+8

Elaine+Tyler=34

x+(x+8)=34

2x+8=34

2x=26

x=13

Elaine=13 years old

Tyler=21 years old

6 0

3 years ago

You invest $9000 with a 6% interest rate compounded semiannually. After 9 yrs, how much money is in your account?

astraxan [27]

$\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$9000\\
r=rate\to 6\%\to \frac{6}{100}\to &0.06\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{semi-annually, thus twice}
\end{array}\to &2\\

t=years\to &9
\end{cases}
\\\\\\
A=9000\left(1+\frac{0.06}{2}\right)^{2\cdot 9}$

7 0

3 years ago

Evaluate -30 divided by -6. (1 point) G 5 5 C 6 Od

Lilit [14]

Answer:

Step-by-step explanation:

-30÷(-6) is the same as 30÷6

30÷6=5

3 0

3 years ago

Read 2 more answers