Answer:
x=2
y=−1
Step-by-step explanation:
You can multiply the second equation by 3:
{2x-3y=7
{9x+3y=15 add the two together (in columns):
11x+0=22
so that x=22/11=2
substitute this back into the first equation:
2*2-3y=7
y=-1
The formula for the area of a rectangle is multiply length x width.
complete question:
If the height and base of the parallelogram shown are each decreased by 2 cm, what is the area of the new parallelogram?
A parallelogram with a base of 10 centimetres and a height of 8 centimetres.
Answer:
area = 48 cm²
Step-by-step explanation:
A parallelogram is quadrilateral with 4 sides formed by 2 pair of parallel lines. The area of a parallelogram is represented as follows :
area of parallelogram = B × H
where
B = breadth
H = height
According to the question the height and the base each reduced by 2 cm.
The new base = 10 - 2 = 8 cm
The new height = 8 - 2 = 6 cm
area = B × H
area = 8 × 6
area = 48 cm²
Part A :
x - the total amount of liters of lemon juice and water in the bottle
0.6 x + 1 = x
Part B :
x - 0.6 x = 1
0.4 x = 1
x = 1 : 0.4
x = 2.5 lit.
Lemon juice: 2.5 * 0.6 = 1.5 lit.
Answer:
|−3| < |−4|
Step-by-step explanation:
