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kicyunya [14]
3 years ago
12

What does -8mn + 9mn =

Mathematics
2 answers:
maks197457 [2]3 years ago
7 0

Answer:

1mn

Step-by-step explanation:

combine like terms

-8mn+9mn=1mn

FrozenT [24]3 years ago
4 0

Answer:

1mn

Step-by-step explanation:

it would of been - 1 if it was switched around but 9 is more than 8 but 9 is a higher number

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PLISS ANSWER :C DONT ANSWER IF YDK THAnKSSS<br> *also pls look at both images :)*
Iteru [2.4K]

Answer:

First image: (6, -1)

2nd image: y = 63

Explanation:

1)

2x + y = 11

1/2x - 5y = 8

y = -2x + 11

1/2x - 5(-2x + 11) = 8

1/2x + 10x - 55 = 8

10.5x - 55 = 8

10.5x = 63

x = 6

2x + y = 11

2(6) + y = 11

12 + y = 11

y = -1

(x , y) = (6, -1)

2)

1/4(8y - 4.8) = 2 (0.9y + 5.4) + 3/5

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0.2y - 1.2 = 11.4

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7 0
3 years ago
A customer service survey was conducted of 500 customers: 250 men and 250 women. The data on one of the questions show that 175
Lisa [10]

Answer:

1,335

Step-by-step explanation:

5 0
3 years ago
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Please help with 27!!!!
Lina20 [59]
It says the elevator's can hold minimum 3000 pounds and how many of a 150 pound box can fit without going over the 3000 pound.
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5 0
3 years ago
5-4c-2-9c<br>evaluate the expression​
True [87]

Answer:

-13c + 3

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>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

5 - 4c - 2 - 9c

<u>Step 2: Simplify</u>

  1. Combine like terms (c):                    -13c + 5 - 2
  2. Combine like terms (Z):                    -13c + 3
5 0
3 years ago
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15 points!!! Help!! Find x. Round to the nearest tenth
horsena [70]

Answer:

So let the hypotenuse be

x

:

sin

(

47

°

)

=

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x

sin

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47

°

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=

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To solve for

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Step-by-step explanation:

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3 years ago
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