5 red books and 10 blue books ?
Answer:
The smaller number is 15
Step-by-step explanation:
To find this, set up a proportion where the ratio is a fraction and the new value is with x on the other side.
3/7 = x/35
Now cross multiply to solve.
35 * 3 = 7 * x
105 = 7x
15 = x
Answer:
x = 5
Step-by-step explanation:
√(2x − 1) + 2 = x
√(2x − 1) = x − 2
2x − 1 = (x − 2)²
2x − 1 = x² − 4x + 4
0 = x² − 6x + 5
0 = (x − 1) (x − 5)
x = 1 or 5
Check for extraneous solutions.
√(2(1) − 1) + 2 = 1
√(1) + 2 = 1
3 = 1
No solution
√(2(5) − 1) + 2 = 5
√(9) + 2 = 5
5 = 5
x = 5
Answer:
Ok
Step-by-step explanation:
Send me link I will help u
All you need to find is : 7 × ? = 154
so you need to divide :
154 ÷ 7 = 22
so the length of the box is 22 inches
hope this helps : )