106k views
0 votes
Find a number, such that two-fifth of the number is 6 more than 10​

User Mcnk
by
4.1k points

2 Answers

4 votes

Answer is 40

Step by step
a number (we will call it n)

2/5 of the number (2/5n)

Is (=)

6 more than 10 (10 + 6)


Put this into equation form and solve

2/5n = 10 + 6

2/5n = 16
divide both sides by 2/5 to solve for n


When we divide a fraction we flip the divisor and multiply


2/5 * 5/2 n = 16 * 5/2


Multiply across

N = 80/2


N = 40

Check your work, substitute 40 for n


2/5 n = 16(2/5) (40) = 16


80/5 = 16


16 = 16


problem solved

User Roberto Ferraris
by
3.8k points
4 votes

Answer: 40

Step-by-step explanation: 40 divided by 5 gives you 8, and 8*2 is 16, which is 6 more than 10

User Elementsense
by
3.8k points