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Angelina_Jolie [31]
3 years ago
8

Subtract these fractions: 250/500 – 50/500

Mathematics
2 answers:
ivolga24 [154]3 years ago
8 0

Answer:

250/500 – 50/500 = 2/5

Step-by-step explanation:

250/500 = 1/2

50/500 =1/10

1/2 - 1/10

5/10 - 1/10 = 4/10

4/10 = 2/5

Alex73 [517]3 years ago
6 0

Answer: 0.4

Step-by-step explanation:

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Using faucet P, you can fill a sink in 10 minutes. Faucet Q takes only 8 minutes to fill the same sink. How long will it take to
nevsk [136]

It would take 4.44 minutes to fill the sink using both faucets P and faucet Q together

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Let t represent the time it takes to fill the sink using both faucets together, hence:

(1/10 + 1/8)t = 1

t = 4.44 minutes

It would take 4.44 minutes to fill the sink using both faucets P and faucet Q together

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4 0
1 year ago
Mary is using a one-sample t-test on the following group:Subject #15: 7.5 hoursSubject #27: 6 hoursSubject #48: 7 hoursSubject #
elena-14-01-66 [18.8K]

Based on the information given, the correct options will be:

a.) Mary would use the sample standard deviation to calculate a t-statistic.

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One-sample t-test simply means a statistical hypothesis test that's used for the determination of whether an unknown population mean will be different from the specific value.

In this case, the value of the degree of freedom for the sample will be:

= (n - 1) = 7 - 1 = 6.

Also, it should be noted that Mary would use the sample standard deviation to calculate a t-statistic.

Learn more about statistics on:

brainly.com/question/15525560

6 0
2 years ago
Write an equation that can be used to find 푚∠푀. Then, solve it. Round to the nearest degree.
jek_recluse [69]

Answer:

M = 27 degrees

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin M = opp side/ hypotenuse

Sin M = 5/11

Take the inverse sin of each side

sin ^-1  sin M = sin ^1 (5/11)

M = 27.03569179

To the nearest degree

M = 27 degrees

4 0
2 years ago
Which is a better buy? 3 for $1.00 or 10 for $3.00
zvonat [6]

10 for $3.00. Even though it costs a little more Maybe the extra will come in handy like lets say if lets say we are buying a 10 pack of pencils for $3.00 What if we give some away or we sell them. And It might be a better brand too, The $1.00 pack could be from the dollar tree and could break in like a day. But the $3.00 version could be much stronger and better. UwU Hope I helped

6 0
2 years ago
How do you find the measure of an angle if it’s six times the supplementary angle?
Romashka [77]

Basic facts:  

1. Complementary angles add upto 90 degrees

2. Supplementary angles add upto 180 degrees  

Let us consider the angle as x degrees

Therefore its complementary angle will be (90 - x) degrees

Also its supplementary angle will be (180 - x) degrees  

As per the question the supplement of the angle is 6 times its complement angle.  

Therefore we can write the equation as:  

180 - x = 6 x (90 - x)

 

or, 180 - x = 540 - 6x

or, 180 - x + 6x = 540 (Bring the variables to left side)

or, -x + 6x = 540 - 180 (bring the numbers to the right side)

or, 5x = 360

or 5x/5 = 360/5 (divide both sides by 5)

or, x = 72  

Therefor the angle is 72 degrees

Complement = 90 - 72 = 18 degrees

Supplement = 180 - 72 = 108 degrees

7 0
3 years ago
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