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sukhopar [10]
2 years ago
5

Help!

Mathematics
1 answer:
nikklg [1K]2 years ago
3 0

Answer:

E      

Step-by-step explanation:

19)        Amount of oil in   =    amount of oil in final product

       .025(x) + .09(40-x)    =    .055(40)      (x = 2.5% amt   40 - x = 9% amt)

  x = 21.54 L  of   2.5 %     then 9% = 18.46 L

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Lines C and D are represented by the equations given below: Line C: y = x + 6 Line D: y = 3x + 2 Which of these shows the soluti
Andre45 [30]

Solution: (2,8)

Using the elimination method set up the system of equations like:

y = x + 6

y = 3x + 2

Eliminate the x-variable by multiplying the top equation by -3

-3y = -3x -18

y = 3x + 2

Combine terms:

-2y = -16

-y = -8

y = 8

Plug in 8 to one of the first equations for y

8 = 3x + 2

6 = 3x

x = 2

Solution: (2,8)

7 0
3 years ago
I’m not sure how to do this
Cerrena [4.2K]
It's b because you have to round up
5 0
3 years ago
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Which is equivalent to 2(5m)+m? options are 11m, 12m, 5m+2 or 7m+2m
zlopas [31]

Answer:

11m

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

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Step-by-step explanation:

<u>Step 1: Define expression</u>

2(5m) + m

<u>Step 2: Simplify</u>

  1. Multiply:                    10m + m
  2. Add:                          11m
5 0
3 years ago
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I think the answer is 2.The function is negative for all real values of x where x < –3 and where x > 1.

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4 years ago
3/5 of the 30 students are boys how many students are girls
anygoal [31]

if 3/5 are boys

1- 3/5

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12 are girls

6 0
3 years ago
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