MATHEMATICS MIDDLE SCHOOL

(4.8x+15.5)+(2.1x-12.2)

Answers

Answer 1
Answer: you can drop the parentheses because you cant use them.
 
So we combine like terms first
1.8x + 2.1x = 3.9x

3.9x + 15.5 -12.2

3.9x + 3.3

hope i helped :)
Answer 2
Answer: (4.8x+15.5)+(2.1x-12.2)                                                                                       (4.8x+2.1x)+(15.5-12.2)                                                                                              6.9+3.300                                                                                                                                             hope I helped

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Mathew has 2148 poppies he has 200 people how many poppies dose everyone get.

Answers

Here you have to divide the amount of poppies by the people so 2148÷2000=10.74 but you would want to round down to 10 since you cant give a person 10.74 of a flower.

Given f (x) and g(x)+k look at the graph below and determine the value of K

Answers

Answer:

k=5

Step-by-step explanation:

Let's find the equation for both lines. For the line in blue we know that passes through points (0,-2) and (3,-1) with this information we can use the formula of the line:

y-y_1=(y_2-y_1)/(x_2-x_1) (x-x_1)

so making the susbtitution we get:

y-(-2)=(-1-(-2))/(3-0)(x-0)

y=(1)/(3)x-2

For the red line we know that passes through points (0,3) and (3,4) doing the same steps as above we get that

y-(3)=(4-3)/(3-0)(x-0)

y=(1)/(3)x+3

the value of k is 5 that's why because we need to move 5 units along the y axis to reach the 3 in the red line
The value of K is 5 because its going up 5 from the f(x) graph

The angles below are supplementary. What is the value of x? A pair of supplementary angles is shown. One angle measures 3x + 40, and the other angle measures 80. 16.6
20
26.7
40

Answers

supplementary angles add up to 180 degrees and with the given information you should be able to get the equation (3x+40)+80=180. Simply solve for X from there. X should equal 20.

Answer:

x = 20 hope this helps :)

Step-by-step explanation:

I have 4 math questions that I don't understand. Please help!?




b^-3=1/216 b=?
743.8 × 103=?
36 ÷ 10–3=?
What is (2.1 × 103) × (4 × 10–7)?

Answers


-- A negative exponent means the number is in the denominator.
    b⁻³  means  1/b³ .
   So  1/b³ = 1/216 .                      You can do it now.

-- If that number is " 10³ ", it means 1,000 .
   If that number is " 103 " and you can't remember
   how to do multiplication with a pencil, then you'll
   have to use your calculator.

-- Again ...  10⁻³  means  1/10³  or  1/1000 .
   So the problem is really  36 divided by  1/1000 .
   Be very careful.  That means  36 x 1000 .

-- To multiply powers that have the same base,
   you add the exponents.

   Example:    10⁴  times  10⁵  =  10⁹ .

   This question can be rearranged as      (2.1 x 4) x (10³ x 10⁻⁷)

                                                                 (10³)  times  (10⁻⁷)   is  10⁻⁴  .

xavier jogs 3 7/10 miles to the baseball field stacey jogs 1 4/10 milesto the same field. how many more milesdoes xavier jogs than stacey

Answers

2 3/10 because 3-1=2 and 7-4=3

One quarter of bread recipe calls for 2/3 cup of bread flour. How many cups are needed per recipe?

Answers

There are several information's of immense importance already given in the question. based on those given information's the answer to the question can be easily determined.
The number of cups required for making 1/4 of bread recipe = 2/3
Then
Number of cups required to make for making 1 bread recipe = (2/3)/(1/4)
                                                                                                 = (2 * 4)/3
                                                                                                 = 8/3 cups
                                                                                                 = 2 2/3 cups
So the total number of cups required per recipe is 2 2/3 cups of bread flour. i hope the procedure is clear enough for you to understand.
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