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erik [133]
3 years ago
5

Be kind and help me out please

Mathematics
2 answers:
yarga [219]3 years ago
7 0
The correct answer is B
NikAS [45]3 years ago
4 0
4x + 12 = 40 
      - 12   -12

4x  = 28

x = 7 

4(7) + 12 = 40
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8 • (x • 4) <br> simplify each expression
muminat

Answer:

The answer would be: 8(4x)= 32x

5 0
3 years ago
The score on a trivia game is obtained by subtracting the number of incorrect answers from twice the number of correct answers.
labwork [276]

Answer:

30

Step-by-step explanation:

A player answers x correct questions and y incorrect questions for a total of 40 questions.

x + y = 40

The score is obtained by subtracting y incorrect answers from two times the x of correct answers.  The player's score is 50.

2x - y = 50

Use substitution to solve.  Rearrange the first equation so that it is equal to y.  Then, substitute the y-value into the second equation.

x + y = 40

y = 40 - x

2x - y = 50

2x - (40 - x) = 50

2x - 40 + x = 50

3x - 40 = 50

3x = 90

x = 30

Since x was made to represent correct answers, the player had 30 correct answers.

8 0
3 years ago
What is the side length of a cube with a volume of 0.216 m3?
aksik [14]

。☆✼★ ━━━━━━━━━━━━━━━  ☾

Cube root 0.216 to get your answer

(Note: This makes sense if you know the volume of a cube is the same value multiplied together 3 times)

The answer is option A 0.6 m

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6 0
4 years ago
a rectangular prism with a volume of 10 cubic units is filled with cubes with side lenghts of 1/2 unit how many 1/2 unit cubes d
Pachacha [2.7K]

Answer:

Step-by-step explanation:

The volume of a cube is

V=s^3, we are told the volume is 10u^3 and that it will be filled with cubes having a side of 1/2 so

n(1/2)^3=10, where n will be the number of these small cubes

n(1/8)=10 upon multiplying each side by 8

n=80

So it will take 80 cubes of side length 1/2 to have a volume equal to 10u^3

6 0
3 years ago
Please help me figure this out!!
SpyIntel [72]

Answer:

$400 \frac{18}{25} OR \frac{10018}{25}

Step-by-step explanation:

$400 stays the same, 72 cents is 72/100. Simplify and voila

6 0
3 years ago
Read 2 more answers
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