Answer:
x = 5 and value of y = 2
Step-by-step explanation:
using substitution method
let;
x + 4y = 13...................... equation 1
x - y = 3............................... equation 2
from equation 2
x - y = 3.................................... eqn 2
x = y + 3.......................................... equation 3
put x = y + 3 in equation 1
x + 4y = 13...................... equation 1
y + 3 + 4y = 13
5y = 13 - 3
5y = 10
divide both sides by 5
i.e
5y/5 = 10/5
y = 2
sustitue for y = 2 in equation 3
x = y + 3.......................................... equation 3
x = 2 + 3
x = 5
therefore the value of x = 5 and value of y = 2
to check if your answwer is correct slot in the value of x and y in any of the equation . e.g
from equation 3
x = y + 3.......................................... equation 3
5= 2 + 3
5 =5....................... proved
A toy company produces rubber balls that have a radius of 1.7 cm.
What is the volume of one rubber ball? Round to the
nearest hundredth of a centimeter.
20.58 cm3
If the price of the rubber needed to produce a ball is
$0.0045/cm3, what is the cost of producing one ball?
Round to the nearest cent.
If the company sells a ball for $0.50, how much profit
will it make on each ball?
$1.7 cm
20.58 cm^3, $0.09, $0.41
Hope this helps
<u>Answer:</u>
C
it's the set that will add to 180°
36° + 42° + 102° = 180°
Answer:
6
Step-by-step explanation:
The opposite of -3 is 3. Opposite numbers are numbers that when added, sum to 0. The distance between 3 and -3 is |3 - (-3)| = |3 + 3| = |6| = 6.
The line passes through the origin, i’m not sure what the options are on your test
