MATHEMATICS COLLEGE

Find the quotient: –10/19÷(−5/7)

Answers

Answer 1

Answer:

Answer:

14/19

Step-by-step explanation:

Note that there are two " - " signs here. Thus, the end result will be " + "

We move from left to right, obtaining first 10/19 divided by (5/7):

----- ÷ (5/7)

To divide by (5/7), invert (5/7) and then multiply. We get:

10 7 2(7)

----- * ----- = ------- = 14/19

19 5 19

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What is the circumference of earth's equator?

Answers

Answer:

40,075 kilometers

Step-by-step explanation:

The distance around the Earth at the Equator, its circumference, is 40,075 kilometers

A quality control inspector has drawn a sample of 15 light bulbs from a recent production lot. Suppose that 60% of the bulbs in the lot are defective. What is the expected value of the number of defective bulbs in the sample

Answers

Answer:

Step-by-step explanation:

Expected number of defective is given as :

N x P = np

Where = number of the sample drawn from the production lot

P= percentage of bulbs In The lot which are defective

N = 15

P = 60% = 0.60

So when we do the multiplication,

We have:

NP = 15x0.60

= 9

So in conclusion the expected value of defective bulbs in the sample is 9.

Over three days I earn 2568. On the first day I made twice as much as the second day. On the third day I made three times as much as the second day. How much did I earn on the first day.

Answers

Answer:

I earned $856 on the first day

Step-by-step explanation:

Let's call

x = earning on the second day

2x = earnings on the first day

3x = earnings on the third day

The total earnings are $2568, thus

x + 2x + 3x = 2568

Simplifying:

6x = 2568

Dividing by 6:

x = 2568/6

x = 428

I earned $428 on the second day.

2x = 2*$428 = $856

I earned $856 on the first day

(-1, 1), (5,-5)
Midpoint formula

Answers

Answer:

(4,-4)

Step-by-step explanation:

(X,y)=(x1+X2) ,(y1+ y2)

= (-1+5), ( 1-5)

= (4, -4)

Solve the equation -6+3×=-9

Answers

-6 + 3x = -9

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And 6 to both sides:
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3x = -3

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Divide by 3 on both sides:
-----------------------------
x = -1

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Answer: x = -1
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Solve for t
C=tm
T=
help !!!

Answers

T = m/c I think sorry if I’m wrong

To get T by itself - you need to both sides by m. The answer is t= c/m

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