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Lorico [155]
3 years ago
13

ON EVERYTHING PLEASE

Mathematics
2 answers:
4vir4ik [10]3 years ago
4 0
A. 5/24
B. 1 2/5
C. 16/45
Olenka [21]3 years ago
4 0

We need to add or subtract these fractions

For b. the fractions have the same denominator, 5.

So all we need to do is to add together the numerator, 3 and 4.

b. 7/5

For a. and c. the denominators are not the same. So we need to find the least common denominator (LCD) or the smallest multiple.

For a, the denominators are 8 and 6. The smallest number would be 24, 8 *3 and 6*4. So we multiple 3/8 *3 and 1/6 *4 - multiplying it with the numerator and denominator. It will be 9/24 - 4/24 which equals 5/24.

a. 5/24

The same can be applied for c. so try it out! A hint will be the least common denominator would be 45. Multiply the fraction (numerator and denominator) by a number where the denominator will both be 45.

Just remember, we only can add or subtract fractions if they have like denominators. If not we have to multiple the fraction so they do.

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3 years ago
What fraction of a day is 14 hours
Naily [24]
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i hope this helped :)
7 0
3 years ago
Read 2 more answers
Someone please help me I’ll give out brainliest please dont answer if you don’t know
natta225 [31]

Answer:

12.5(x  + 20) = 460 \\ x + 20 = 460 \div 12.5 \\ x + 20 = 36.8 \\ x = 36.8 - 20 \\ x = 16.8

Hence, 16.8 miles is your answer

3 0
3 years ago
Certain tubes manufactured by a company have a mean lifetime of 800 hours and a standard deviation of 60 hours. Find the probabi
Anna71 [15]

Answer:

Step-by-step explanation:

given that certain tubes manufactured by a company have a mean lifetime of 800 hours and a standard deviation of 60 hours.

Sample size n =16

Std error of sample mean = \frac{\sigma}{\sqrt{n} } \\= 15

x bar follows N(800, 15)

the probability that a random sample of 16 tubes taken from the group will have a mean lifetime

(a) between 790 and 810 hours,

=P(790

(b) less than 785 hours

=P(X

, (c) more than 820 hours,

=P(X>820)\\=p(Z>1.333)\\= 0.0913

(d) between 770 and 830 hours

=P(|Z|

4 0
3 years ago
In ΔABC, if AB = 10 and BC = 6, AC can NOT be equal to
Goshia [24]

Answer:

16

Step-by-step explanation:

adding any two sides of a triangle is allways greater than the third side

6 0
3 years ago
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