Can some one help me i have no idea how to do this

Mathematics

1 answer:

pashok25 [27]3 years ago

6 0

Answer:

k=-7

Step-by-step explanation:

Okay,

2/7k-3/8=-19/8

+3/8 +3/8

--------------------------

2/7k= -2

------- -------

2/7 2/7

k=-7

To check do 2/7(-7) -3/8

-2 -3/8

and u get -2 3/8 but then u do 8*2= -16+3= 19

You might be interested in

Find the area of the figure. 14 m 5 m 2 m 16 m

Zepler [3.9K]

Answer: Sorry to be rude but could I see the question? Thank you and when I see it I will take a look at it.

7 0

3 years ago

Evaluate the expression 1/4 x (3/9 + 5) Choices:1 1/3,1 2/3,5,answer not here.

Luda [366]

Answer:

First option

Step-by-step explanation:

Given the following equation:

$\frac{1}{4} \times(\frac{3}{9} +5)$

In order to find the answer, we solve the equation in between the parenthesis according to order of operations and then multiply that answer by 1/4.

$\frac{1}{4} \times(\frac{3}{9} +5)$
$5=\frac{5}{1}$
$\frac{3}{9} +\frac{5}{1}$
$3\times1=3$
$9\times1=9$
$5\times9=45$
$1\times9=9$
$\frac{3}{9} +\frac{45}{9}$
$3+45=48=\frac{48}{9}$
$\frac{48}{9} \div3=\frac{16}{3}$

$\frac{1}{4} \times\frac{16}{3}$
$1\times16=16$
$4\times3=12$
$\frac{16}{12} \div2=\frac{8}{6} \div2=\frac{4}{3}$
$\frac{4}{3} =4\div3=1\frac{1}{3}$
$=1\frac{1}{3}$

Hope this helps.