Answer:
6
Step-by-step explanation:
No. objects in one set = 7
Let there be n set
Then, No. objects in n set = 7*n = 7n
Given that total no of objects are 48
Thus,
7n = 48
n = 48/7 = (42+6)/7 = 42/7 + 6/7 = 6 + 6/7
n = 6 + 6/7
Thus, there will be 6 set which has 7 objects. fraction means one set is fraction 6/7 but set cannot be in fraction hence negating it.
Now, total objects in 6 sets = 6*7 = 42.
No. of objects left = 48 - 6 = 6
4.8 x 5.2 = area of the carpet
24.96 squar yards of carpet
Cost per one is 5.75/25=0.23
each one costs 23 cents
Answer:
3x^2 + 7x - 5 + 2x^2
= 5x^2 + 7x - 5 (a=5, b=7, c=-5)
x = (-b+/- √(b^2 - 4ac))/2a
= (-7+/- √(49+100))/10
= (-7+√149)/10, (-7-√149)/10
Hope this helps!
Answer:
x=10
base=4inches
height=15inches
Step-by-step explanation:
A=1/2bh
30=1/2(x-6)(x+5)
60= x²+5x-6x-30
x²-x-90=0
x²-10x+9x-90=0
x(x-10) +9(x-10)=0
(x+9)(x-10)=0
x= -9 or 10
x cannot be negative
Therefore x= 10
base= 10-6
=4inches
height=10+5
=15inches
