All categories

1 year ago

Mr. Parker spent $96.30 on 3 hats and 6 key chains. if each hat cost $15.50 how much did each key chain cost?

Mathematics

1 answer:

Vladimir [108]1 year ago

6 0

1) Given that Mr. Parker spent that we can write

3h +6k = 96.30

h=15.5

2) So now let's solve system system

You might be interested in

4. I need help with question in the attached picture!

Arisa [49]

ANSWER

D. 13

EXPLANATION

We have

$f(x) = \frac{2x + 1}{x - 4}$

To find

${f}^{ - 1} (3)$

means we want to find an x-value whose image is 3.

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

We cross multiply,

$2x + 1 = 3(x - 4)$

Expand:

$2x + 1 = 3x - 12$

Combine like terms,

$3x - 2x = 12 + 1$

$x = 13$

$\therefore{f}^{ - 1} (3)= 13$

4 0

3 years ago

Read 2 more answers

Help plz who ever helps they are nice

slava [35]

Im mean I’d be down to help

4 0

2 years ago

Read 2 more answers

The point slope equation of a line is?

snow_tiger [21]

Answer:

$\text{The point-slope equation of a line is:}$

$C.\ y-y_0=m(x-x_0)$

$m-\text{slope}\\\\(x_0,\ y_0)-\text{point on a line}$

6 0

3 years ago

You already know its another giveaway

nasty-shy [4]

Answer: yay thxs

Step-by-step explanation:

5 0

2 years ago

3x²+x=2<br>solve by factoring ?

lara [203]

$3x^2+x=2\\\\3x^2+x-2=0\\\\3x^2+3x-2x-2=0\\\\3x(x+1)-2(x+1)=0\\\\(x+1)(3x-2)=0\\\\x+1=0\ \ \ \ \ \ \ \ \ or\ \ \ \ \ \ \ \ \ 3x-2=0\\x=-1\ \ \ \ \ \ \ \ \ \ \ \ or\ \ \ \ \ \ \ \ \ 3x=2\\x=-1\ \ \ \ \ \ \ \ \ \ \ \ or\ \ \ \ \ \ \ \ \ x=\frac{2}{3}\\\\$

8 0

2 years ago

Read 2 more answers