All categories

3 years ago

-4x+ lly = 15 pls help me x=2y

Mathematics

1 answer:

kupik [55]3 years ago

4 0

Answer:

y = 5

Step-by-step explanation:

-4(2y) +11y = 15

-8y + 11y = 15

3y = 15

y = 5

You might be interested in

Divide the fractions and simplify the answer 1/2 5/8

NeTakaya

To solve this let our write this fraction in terms.
$\frac{1}{2} 
$ / $\frac{5}{8}$

So now let change this problem as a multiplication problem. To change this to multiplication problem we have to flip our second term

$\frac{1}{2} * \frac{8}{5}$

So, now let's simplify the terms. So we get
$\frac{4}{5}$

Thus this is our final answer.

6 0

3 years ago

Read 2 more answers

Help me please!!!!!!!!!!!!!!!!!!!!!!!!!!!

SVEN [57.7K]

82.2

Add all of them up and then divide by 10.

5 0

3 years ago

Read 2 more answers

Divide 28 cans into 2 groups so the ratio is 3 to 4

zysi [14]

$\bf \cfrac{\textit{first group}}{\textit{second group}}\qquad 3:4\qquad \cfrac{3}{4}\implies \cfrac{3\cdot \frac{28}{3+4}}{4\cdot \frac{28}{3+4}}\implies \cfrac{3\cdot \frac{28}{7}}{4\cdot \frac{28}{7}}\implies \cfrac{12}{16}$

7 0

3 years ago

Find the rectangular coordinates of the point. (-5, -180°)

o-na [289]

$\bf \begin{array}{rlclll}
(-5&,&-180^o)\\
\uparrow &&\uparrow \\
r&&\theta 
\end{array}\quad 
\begin{cases}
x=rcos(\theta )\\
\qquad -5\cdot cos(-180^o)\\
\qquad -5\cdot -1\\
\qquad 5\\
----------\\
y=rsin(\theta )\\
\qquad -5\cdot sin(-180^o)\\
\qquad -5\cdot 0\\
\qquad 0
\end{cases}\implies (5,0)$

4 0

3 years ago

Solve the equation show your work <br><br> 5d=17.1

Svet_ta [14]

Answer:

3.42

Step-by-step explanation:

Divide 17.1 by 5. Simple

5 0

3 years ago

Read 2 more answers

-4x+ lly = 15 pls help me x=2y​

-4x+ lly = 15 pls help me x=2y