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3 years ago

Rule add 15, subtract 10 first term4

Mathematics

2 answers:

mr Goodwill [35]3 years ago

8 0

I think that would be 9 I am not sure.

mrs_skeptik [129]3 years ago

5 0

First term is 4

4 + 15 = 19

19 - 10 = 9

9 is your answer

hope this helps

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Rod is paid $85 to install a screen door and $115 to install a wooden door. In one week he installed 18 doors and was paid a tot

Rainbow [258]

Answer:Rod installed 7 screen doors

Step-by-step explanation:

Step 1

Let the number of screen door = x

And the number of wooden doors = y

since he installed 18 doors , we have that

screen door + wooden doors = 18

x + y = 18------ equation 1

Also the cost to install a screen door -= $85

and to install a wooden door = $115

And he was therefore paid a total of $1850

Therefore

85x + 115 y = $1860------- equation 2

Step 2----- Solving

x + y = 18------ equation 1

85x + 115 y = $1860------- equation 2

Multiplying equation 1 BY 85

85x + 85y= 1530------- equation 3

85x + 115 y = $1860------- equation 4

subtracting from equation 1 from (2)

115y- 85y= 1860-1530

30y=330

y = 330/30 = 11

To find x

x+ y=18

x= 18-y

x= 18-11= 7

Rod installed 7 screen doors and 11 wooden doors.

8 0

3 years ago

Determine whether the following graph represents a function.

4vir4ik [10]

Answer:

function

Step-by-step explanation:

8 0

2 years ago

A small bottle of water holds 7 ounces of water. How many ounces of water do 9 bottles hold?

White raven [17]

Step 1

Given;

$A\text{ small bottle of water holds 7 ounces of water}$

Required; How many ounces of water do 9 bottles hold?

Step 2

To do this we will use the ratio;

$\frac{1\text{ bottle}}{9\text{ bottles}}=\frac{7\text{ ounces}}{x}$ $\begin{gathered} x=7(9) \\ x=63\text{ ounces} \end{gathered}$

Answer;

$9\text{ bottles of water holds 63 ounces}$

3 0

1 year ago

Please help I'm really bad at math and I can't get a bad grade can someone help me please max points

Ksivusya [100]

1. x greater than or equal to 4 (B)

2. x does not equal 4 (C)

3. A

4. B

5. B

6. A

7. B

8. C

(The pictures were out of order but i did it by number shown in the pictures. Hope this helps.)

5 0

3 years ago

Read 2 more answers

What is the value of (-3)(5)(-4)

olasank [31]

The answer is 60 bc -3 x -4 is 12, and 12x5 is 60

5 0

3 years ago