2 years ago

Prove that the decimal 8.72 is rational by finding its fractional form.

Mathematics

1 answer:

Marizza181 [45]2 years ago

6 0

Noce

Step by step solution

Dd
D
D
Dd
D
F

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1/2 + (-1/4)=????????????

erica [24]

Answer:

$\frac{1}{4}$

Step-by-step explanation:

$\frac{1}{2}$ = $\frac{2}{4}$ We need a common denominator before we can add.

$\frac{2}{4}$ + $\frac{-1}{4}$ means the same thing as

$\frac{2}{4}$ - $\frac{1}{4}$ = $\frac{1}{4}$

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1 year ago

A real estate agent earns a 6% commission on each property she sells. If she sells a detached house for $200,000 and a cottage f

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2 years ago

at one store 3 sweaters cost $44.99 and at a store next door the same sweater costs $52.00 for 4 which store has the better deal

Liono4ka [1.6K]

Answer:

The first store

Step-by-step explanation:

3sweaters->$44.99

4sweaters->x

x=4×44.99/3 x=$59.98

3sweaters->$52.00

4sweaters->x

x=4×52/3 x=$69.33

first store<second store

59.98<69.33

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2 years ago

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A bicycle manufacturing plant is producing the first few frames for their new electric bicycle design. The first batch of 60 fra

Dmitry_Shevchenko [17]

Answer:

a) 131/450

b) 1233/1276

Step-by-step explanation:

P(bad) = P(1st batch)*P(bad 1st batch ) + P(2nd batch )*P(bad 2nd batch) + P(3rd batch )*P(bad 3rd batch)

p(bad) =(60/360)*(1/3) + (120/360)*(1/4 ) + (180/360)*(1/5)

= 43/180

And that of P(good )

= 1 - 43/180

= 137/180

P(defective) = P(bad)*P(defective /bad) + P(good)*P(defective /good)

= (43/180)*(9/10) + (137/180)*(1/10)

= 131/450

P(Bc I Dc ) = P(good)*P(not defective |good) / P(not defective)

= (137/180)*(1 - 1/10) / (1 - 131/450)

= 1233/1276

5 0

2 years ago