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3 years ago

Math it's just multiplying and dividing fraction. just 7 & 8

Mathematics

1 answer:

neonofarm [45]3 years ago

6 0

7.
$( \frac{6}{5} ) \: ( - \frac{10}{9} )$
find a common denominator

it will turn into 54 over 45 times -50 over 45

multiply across, leaving the denominator the same

divide the numerator by the denominator

leaving you with 60

ANSWER: 60

8.
$- 3 \div \frac{7}{8}$
Turn the whole number into a fraction by multiplying 3 by 8, also write an 8 under your answer, put the negative in front of the fraction

now we have -24 over 8 divided by 7 over 8
divide -24 by 7

now we have -3 over 8

ANSWER=
$- \frac{3}{8}$

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Several different cheeses are for sale. The cheese comes in wedges

Tpy6a [65]

Answer:

39.30 $cm^{2}$

Step-by-step explanation:

The area of the top surface of the wedge is the same as the area of a sector.

Area of a sector = (θ/ $360^{o}$ ) $\pi$ $r^{2}$

where: θ is the central angle, and r is the radius.

Given that: central angle = $45^{o}$ , radius = 10 centimetre.

Area of the top surface = Area of a sector = (θ/ $360^{o}$ ) $\pi$ $r^{2}$

= $\frac{45^{o} }{360^{o} }$ x $\frac{22}{7}$ x $(10)^{2}$

= $\frac{1}{8}$ x $\frac{22}{7}$ x 100

= 39.2857

= 39.30 $cm^{2}$

The area of the top surface of the wedge is 39.30 $cm^{2}$ .

3 0

3 years ago

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Answer:

3 feet

Step-by-step explanation:

Initial depth = 16 feet

Then:

16 - 8 - 5=
8 - 5 =
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3 years ago

5( - 2) ............................................

qaws [65]

Answer:

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In contract negotiations between a local government agency and its workers,

Liono4ka [1.6K]

Answer:

a. 0.4

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Step-by-step explanation:

a. We use the probability table attached below for our calculations.

-the probability that an agreement is reached on both sides is obtained from the table:

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b. To determine whether the two events are independent, we compare the probabilities $P(s)\times P(i)$ and $P(s \ and \ i)$ where i denotes insurance and s denotes salaries: