(x+7)(x+3) so therefore you set each equation = 0...
x + 7 = 0
x + 3= 0
and solve
x = -3
x = -7
Answer:
BBBBBBBBBB
Step-by-step explanation:
1/4 mile per 22.5 seconds
Answer:

Step-by-step explanation:
Required
15 is what percentage of 105
To do this, simply divide 15 by 105 multiplied by 100%.
So, we have:



--- approximated
ex: 5/25=1/5
5 divided by 5 is and 25 divided by 5 is 5.
1.Write down the factors for the numerator(top number) and the denominator(the number down below).
2.Find the largest factor that is common between the two.
3.Divide the numerator and denominator by the greatest common factor.
4.Write down the reduced fraction.
Hope this helps
Answer:
The weight of container C is 2.1kg.
Step-by-step explanation:
This question is solved using a system of equations.
I am going to say that:
x is the weight of container A.
y is the weight of container B.
z is the weight of container C.
The average weight of 3 containers A,B and C is 3.2kg.
This means that the total weight is 3*3.2 = 9.6kg. So

Container A is twice as heavy as container B.
This means that
.
Containers B is 400 g heavier than container C.
400g is 0.4kg. So
This means that
, or 
Replacing y and z as functions of x in the first equation:




Container C

The weight of container C is 2.1kg.