All categories

3 years ago

Help me pls

Mathematics

2 answers:

agasfer [191]3 years ago

4 0

Answer:

7/4 which could also be written as 1 and 3/4

matrenka [14]3 years ago

3 0

Answer:

7/4

Step-by-step explanation:

first we take lcm of 3 , 4 , 6

8+3+10/12

calculate

21/12

after reduction

7/4

hope it helps , pls mark me as brainliest

You might be interested in

Bessy can make 4 batches of Rice Krispy treats in 100 minutes. At the same rate, how many would it take to make 7 batches?

m_a_m_a [10]

140 bc 100 divided by 4 is 20 and times that by 7

5 0

3 years ago

Read 2 more answers

Tim bought $2$2 pounds of apples for $$0.50$$0.50 per pound. He also bought $1.5$1.5 pounds of cookies for $$2.10$$2.10 per poun

seropon [69]

This question is not understandable. Can you rewrite it again please?

5 0

3 years ago

The ratio of girls to boys at a movie is 5 : 4. If there are 12 boys, how many girls are at the movie?

dalvyx [7]

Answer:

12/5 is 2.4 so

9 girls I think.

Step-by-step explanation:

8 0

3 years ago

What are the ordered pairs of the

9966 [12]

Start by writing the system down, I will use $y$ to represent $f(x)$

$y=x^2-5x+3\wedge y=-3$

Substitute the fact that $y=-3$ into the first equation to get,

$-3=x^2-5x+3$

Simplify into a quadratic form ( $ax^2+bx+c=0$ ),

$x^2-5x+6=0$

Now you can use Vieta's rule which states that any quadratic equation can be written in the following form,

$x^2+x(m+n)+mn=0$

which then must factor into

$(x+m)(x+n)=0$

And the solutions will be $m,n$ .

Clearly for small coefficients like ours $5,6$ , this is very easy to figure out. To get 5 and 6 we simply say that $m=3, n=2$ .

This fits the definition as $5=3+2$ and $6=2\cdot3$ .

So as mentioned, solutions will equal to $m=3, n=2$ but these are just x-values in the solution pairs of a form $(x,y)$ .

To get y-values we must substitute 3 for x in the original equation and then also 2 for x in the original equation. Luckily we already know that substituting either of the two numbers yields a zero.

So the solution pairs are $(2,0)$ and $(3,0)$ .

Hope this helps :)

5 0

3 years ago

Find the domain of each function f(x)=1/x

Tasya [4]

Answer:

Domain is all the possible x-values that can be plugged in and range is all the possible y-values that can be outputs. f(x)=1x can have any number as an input except for zero. If we plug in zero for x , then we would be dividing by zero which is impossible. Thus the domain is all real numbers except for zero.

Step-by-step explanation:

6 0

3 years ago