Answer: B
Step-by-step explanation:
Answer:
$1470
Step-by-step explanation:
sneakers : boots
15 : 19
15 cost sneakers
------ = -------------------
19 570
using cross products
15 * 570 = 19 * sneakers
8550=19 * sneakers
divide by 19
8550/19 = sneakers
sneakers = 450
total cost = 2* sneakers + boot
total cost = 2 * 450 + 570
total cost = 900 + 570
total cost = 1470
Answer:
x = minus two
Step-by-step explanation:
5x+3 = 2x-3
5x-2x = -3-3
3x = -6
x = -6÷3
x = -2
Answer:
Step-by-step explanation:
To divide fractions, <em>skip, flip, and multiply</em>:
To multiply fractions, multiply the tops and bottoms:
Answer:
35
Step-by-step explanation:
To find this, we are going to use the combination formula as follows;
nCr = n!/(n-r)!r!
In this case, n = 7 and r = 3
Substituting these values;
7C3 = 7!/(7-3)! 3! = 7!/4!3! = 35
