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3 years ago

Find the quotient of -1 4/5 and 3 1/4

2 answers:

7 0

Here, Expression: (-1 4/5)/(3 1/4)

= (-9/5)/(13/4)

We can re-write it as:

= -9/5 * 4/13

= -36/65

In short, Your Answer would be: -36/65

Hope this helps!

abruzzese [7]3 years ago

3 0

The quotient of -1 4/5 and 3 1/4 = (-1 4/5) / ( 3 1/4)

= [ - (5 * 1 + 4) / 5 ] / [ (3 * 4 + 1) / 4 ]

= [ -9 / 5 ] / [ 13 / 4 ]

= [ -9 / 5 ] * [ 4 / 13 ]

= [ -9 * 4 ] / [ 5 * 13 ]

= -36/65

another way is to do it separately first: -1 4/5 and 3 1/4

-1 4/5 = -(1 + 4/5)

= -(5/5 + 4/5)

= -9/5

3 1/4 = 3 + 1/4

= 3*4/4 + 1/4

= 12/4 + 1/4

= 13/4

so (-1 4/5) / ( 3 1/4)

= (-9/5) / (13/4)

= (-9/5) * (4/13)

= (-9*4) / (5*13)

= -36/65

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The four-member math team at Pecanridge Middle School is chosen from the math club, which has three girls and five boys. How man

cestrela7 [59]

Answer:

$Total\ Selection = 30\ ways$

Step-by-step explanation:

Given

Girls = 3

Boys = 5

Required

How many ways can 2 boys and girls be chosen?

The keyword in the question is chosen;

This implies combination and will be calculated as thus;

$Selection =\ ^nC_r = \frac{n!}{(n-r)!r!}$

For Boys;

n = 5 and r = 2

$Selection =\ ^5C_2$

$Selection = \frac{5!}{(5-2)!2!}$

$Selection = \frac{5!}{3!2!}$

$Selection = \frac{5 * 4 * 3!}{3!*2 * 1}$

$Selection = \frac{20}{2}$

$Selection = 10$

For Girls;

n = 3 and r = 2

$Selection =\ ^3C_2$

$Selection = \frac{3!}{(3-2)!2!}$

$Selection = \frac{3!}{1!2!}$

$Selection = \frac{3 * 2!}{1 *2!}$

$Selection = \frac{3}{1}$

$Selection = 3$

Total Selection is calculated as thus;

$Total\ Selection = Boys\ Selection * Girls\ Selection$

$Total\ Selection = 10 * 3$

$Total\ Selection = 30\ ways$

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4 years ago

Richard caught f fish two weeks ago and 32 fish last week.

svp [43]

If the answer needs to be in an expression then the answer is 32 + f because we don't know how many fish he caught the first week

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3 years ago

Read 2 more answers

2. Another wooden plank is leaning against an outside wall of a building. The bottom of the plank is 9 ft from the wall. The len

yan [13]

(A) Find the value of x. Round to the nearest tenth of a degree
Given that the distance of the ground is 9ft.
Length of the plank is 41 ft

In order to get the angle formed between the ground and the foot of the plank,

cos (theta) = ground / plank
cos (theta) = 9 / 41
cos (theta) = 0.21951...
theta = cos^-1(0.21951...)
theta = 77.3 degrees

(b) Find the height above the ground where the plank touches the wall. Round to the nearest tenth of a foot.

Height = square root (plank^2 - ground^2)
Height = square root (41^2 - 8^2)
Height = square root (1600)
Height = 40

(A) 77.1 Degrees
(B) 40 feet

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3 years ago

Which equation below would match this graph?

ch4aika [34]

A

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