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Juliette [100K]
3 years ago
11

WILL MARK BRAINLIEST 50 POINTS 3/4 - 4z + 5/4z - 1/2 + 1/2z Simplify.

Mathematics
2 answers:
exis [7]3 years ago
7 0
3/4-4z+5/4z-1/2+1/2z
3/4-4z+1 1/4z-1/2+1/2z
3/4-4z+1 1/4z-2/4+2/4z
5/4-4z+1 3/4z
1 1/4- 3 1/4z
  
Dominik [7]3 years ago
5 0
-9z/4 + 1/4 would be the correct answer 
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A small theater can seat 600 people. The number of rows in 10 less than the number of seats in each row. How many seats are in e
Kisachek [45]

Answer:

30 seats

Step-by-step explanation:

To answer this question, we will be assigning values for both rows and seats.

R = Rows

S = Seats

Remember that rs = 600

r = s - 10, plug this equation into rs = 600, and factor it:

s(s-10) = 600

s^2-10s-600 = 0

(x-30)(x+20) = 0

There are 30 seats in the row. To determine which one is your answer, your answer MUST be positive because it is impossible to have negative seats. (x-30) is 30, which is the positive value found when factoring.

3 0
4 years ago
What is 8 3/4% expressed as a fraction?<br><br><br> 8/100<br><br> 7/80<br><br> 7/40<br><br> 8/25
Lelu [443]
ANSWER:

7 / 80

8 3/4% expressed as a fraction is 7 / 80.

STEP-BY-STEP EXPLANATION:

Write 8 3/4% as a percentage with a decimal:

= 8.75%

Convert 8.75% to a fraction:

= 8.75% ÷ 100

= 8.75 / 100

Make the numerator a whole number by multiplying both the numerator and denominator by a 100:

= ( 8.75 × 100 ) / ( 100 × 100 )

= 875 / 10000

Divide the numerator and denominator in the fraction by their highest common factor ( HCF ):

HCF = 125

THEREFORE:

= ( 875 ÷ 125 ) / ( 10000 ÷ 125 )

= 7 / 80
5 0
4 years ago
2x-5) = 2(x-5) One Solution Infinitely Many Solutions No Solution 5x + 4) = 5(1-6) 5(x + 4) = 3(x-6) 4x - 2) = 4(x + 2) x + 2(x-
Gekata [30.6K]

9514 1404 393

Answer:

  top down: ∞, 0, 1, 0, ∞

Step-by-step explanation:

The equation will have infinite solutions when the left side and right side simplify to the same expression. This is the case for the first and last expressions listed.

  2(x -5) = 2(x -5) . . . . expressions are already identical

  x +2(x -5) = 3(x -2) -4  ⇒  3x -10 = 3x -10 . . . the same simplified expression

__

The equation will have no solutions when the x-coefficients are the same, but there are different added constants.

  5(x +4) = 5(x -6)  ⇒  x +4 = x -6  . . .  not true for any x

  4(x -2) = 4(x +2)  ⇒  x -2 = x +2  . . .  not true for any x

__

The equation will have one solution when coefficients of x are different.

  5(x +4) = 3(x -6)  ⇒  2x = -38  ⇒ x = -19

4 0
3 years ago
Giving brainlyest to first answer<br> and id correct
Savatey [412]

Answer:

4

Step-by-step explanation:

To begin with, convert both fractions into improper fractions:

1\frac{2}{3}=\frac{5}{3} and 2\frac{3}{9}=\frac{21}{9}.

Then convert the first fraction to ninths in order to add the two:

\frac{5}{3}*\frac{3}{3}=\frac{15}{9}.

Then we add the two:

\frac{15+21}{9}

\frac{36}{9}=4

6 0
3 years ago
Read 2 more answers
Please solve this ASAP!!! :)
kherson [118]

Answer:

1). Area = 37 cm²

2). Area = 120 cm²

Step-by-step explanation:

Figures in the picture attached are the examples of composite figures.

1). Area of the composite figure = Area of rectangle A + Area of rectangle B

   Since area of rectangle = Length × width

   Area of rectangle A = 8 × 2 = 16 cm²

   Area of rectangle B = 3 × 7 = 21 cm²

   Area of the composite figure = 16 + 21 = 37 cm²

2). Area of the composite figure = Area of C + Area of D

                                                     = (3×4) + (9×12)

                                                     = 12 + 108

                                                     = 120 cm²

4 0
3 years ago
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