Solve each system by graphing or using a table. Check your answers.

1. WILL MARK BRAINLIEST!!! HELP!

MatroZZZ [7]

Answer:

$\frac{7}{x+7}$

Step-by-step explanation:

<u /> $\frac{7x + 42}{x^2 + 13x + 42}$

$\frac{7(x + 6)}{x^2 + 13x + 42}$

<u>Step 2: Factor the bottom</u>

<u /> $\frac{7(x + 6)}{(x + 7)(x + 6)}$

<u>Step 3: Cancel the top (x+6) and the bottom (x+6)</u>

<u /> $\frac{7}{x+7}$

Answer: $\frac{7}{x+7}$

6 0

3 years ago

2 3 4 5 6 7 8 9 10

Igoryamba

The Answer Will Be 7:4

7 0

3 years ago

how many pounds of coffee worth $10 a pound should be added to 20 pounds of coffee worth $4 a pound to get a mixture worth $5 a

Solnce55 [7]

Answer:

4

Step-by-step explanation:

1. if the mass of coffee worth $10 is 'x', then its worth is 10x, and the worth of the mixture is 5(x+20);

2. using the previous item it is possible to write the next equation:

5(x+20)=4*20+10*x; ⇒ x=4.

3. the required mass is 4 pounds.

5 0

3 years ago

Many fundraisers ask for donations using email and text messages. A paper describes an experiment to investigate whether the pro

blagie [28]

Answer:

b. donations using text message

d. donations using email

Step-by-step explanation:

From the question, it is clear that the people who received these requests were assigned to two groups and these 2 were assigned treatments of if they make donations after either receiving email or text messages after which their respective proportions p1 and p2 are determined.

7 0

3 years ago

Can someone please help me?

Vladimir79 [104]

Answer:

Option D is the correct option.

Step-by-step explanation:

y = - 2x - 3 → Equation ( i )

y = 3x + 2 → Equation ( ii )

Using elimination method

y + 2x = - 3

y - 3x = 2