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4 years ago

What is the sum of 2/5 and 1/3

Mathematics

2 answers:

VladimirAG [237]4 years ago

7 0

Answer:11/15

Step-by-step explanation:

Most common denominator is 15 multiply 2/5 by 3 and 1/3 by 5 and that’s what you get

worty [1.4K]4 years ago

6 0

The answer would be 11/15

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Algebraic expression for the word phrase. 6 more than the difference of W and 3.

sergeinik [125]

Answer:

(W-3)-6

Step-by-step explanation:

it means that the difference between w and 3 is less than the other equation by 6

Read it carefully ;)

8 0

3 years ago

Read 2 more answers

If g(x)=f(x)+k, how would you find k

igomit [66]

You would subtract f(x) from both sides g(x)-f(x)=k

3 0

4 years ago

A commercial jet can fly 868 miles in 2 hours with a tailwind but only 792 miles in 2 hours into a headwind. Find the speed of t

erik [133]

Answer:

The speed of the jet in still air is 415 mph and the speed of the wind is 19 mph

Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

Let

x -----> the speed of the wind in miles per hour

y ----> the speed of the jet in still air in miles per hour

we know that

With a tailwind

$y+x=\frac{868}{2}$

$y+x=434$ ----> equation A

With a headwind

$y-x=\frac{792}{2}$

$y-x=396$ ----> equation B

solve the system of equations A and B by elimination

Adds equation A and equation B

$y+x=434\\y-x=396\\------\\y+y=434+396\\2y=830\\y=415$

Find the value of x

$y+x=434$

$415+x=434$

$x=434-415$

$x=19$

therefore

The speed of the jet in still air is 415 mph and the speed of the wind is 19 mph

6 0

3 years ago

Read 2 more answers

A class has 9 boys and 15 girls. What is the ratio in simplest form that compares number of boys to total number of students

jek_recluse [69]

Answer:

3 : 8

Step-by-step explanation:

9 boys + 15 girls = 24 Ratio is boys to total number of students = boys : total.no = 9 : 24 You simplify= 9 ÷ 3= 3 and 24 ÷ 3 = 8 Answer = boys : total.no = 3 : 8

6 0

3 years ago

I need help with this

vodka [1.7K]

9514 1404 393

Answer:

Natural
Whole
Integer
Rational

Step-by-step explanation:

4563 is a positive integer, hence a Natural number. It fits in the innermost oval on the left side of the diagram, so is a member of all enclosing sets:

Natural
Whole
Integer
Rational
Real

5 0

3 years ago