3/4 - 4z + 5/4z- 1/2 + 1/2z

Mathematics

1 answer:

NeX [460]4 years ago

3 0

3/4-4z+5/4z-1/2+1/2z Final result : 1 - 9z —————— 4

Step by step solution :Step 1 : 1 Simplify — 2 Skip Ad
Equation at the end of step 1 : 3 5 1 1 (((—-4z)+(—•z))-—)+(—•z) 4 4 2 2 Step 2 : 1 Simplify — 2 Equation at the end of step 2 : 3 5 1 z (((—-4z)+(—•z))-—)+— 4 4 2 2 Step 3 : 5 Simplify — 4 Equation at the end of step 3 : 3 5 1 z (((—-4z)+(—•z))-—)+— 4 4 2 2 Step 4 : 3 Simplify — 4 Equation at the end of step 4 : 3 5z 1 z (((— - 4z) + ——) - —) + — 4 4 2 2 Step 5 :Rewriting the whole as an Equivalent Fraction :

5.1 Subtracting a whole from a fraction

Rewrite the whole as a fraction using 4 as the denominator :

4z 4z • 4 4z = —— = —————— 1 4

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The revenue, in dollars, of a company that produces video game systems can be modeled by the expression 5x2 + 2x – 80. The cost,

WINSTONCH [101]

SALES: 5x² + 2x – 80
- COST: 5x² – x + 100
= ------------------
PROFIT: 0x²+3x-180
(+3x because we subtracted a negative (-x), which is called adding, similarly taking away 100 from negative 80 is -180.)

Checking:
5x² + 2x – 80
5(500)²+2(500)-80 = 1,250,920

5x² – x + 100
5(500)² – (500) + 100= 1,249,600

Profit = 1,250,920 - 1,249,600 = 1,320

0(500)²+3(500)-180 = 1,320 YAY! {:-)

Double Checking:

5x² + 2x – 80
5(5000)²+2(5000)-80 = 125,009,920

5x² – x + 100
5(5000)² – (5000) + 100= 124,995,100

Profit = 125,009,920 - 124,995,100 = 14,820

0(5000)²+3(5000)-180 = 14,820 YAY! {:-)

3 0

4 years ago

Read 2 more answers

Y = (25 - 2) (35 - 2). Multiply the binomials.

Dima020 [189]

Answer: y=759

Step-by-step explanation:

y = (25 - 2) (35 - 2)

y = (23) (33)

y = 759

5 0

3 years ago