<span>7x-4y=-7
5x+y=22
multiply 4 on the 2nd equation
</span>20x+ 4y=88
now you have
7x -4y = -7
20x + 4y = 88
--------------------add
27x = 81
x = 3
7x-4y=-7
7(3)-4y=-7
-4y = -28
y = 7
answer (3, 7) is the solution
Answer:
D: A rhombus is always a parallelogram
Step-by-step explanation:
A rhombus is a quadrilateral, and it is also a parallelogram. However, a parallelogram is not always a rhombus.
Bag weight 1.8 kg
Golf ball weight: 45g
1 kg = 1000g
Total bag weight in grams = 1.8 x 1000 = 1800g
total bag weight / golf ball weight = total balls in bag
1800 / 45 = 40
Total balls in bag = 40.
A varible represents the number u are looking for.
Example:
2x + 3x
Answer:
c. 25/100
Step-by-step explanation:
The given fraction is 1/4.
Here we need to find the equivalent to 1/4.
It c. 25/100
Let me explain.
Multiply 1/4 by 25 both the numerator and the denominator.
1/4 *25/25 = 1*25 / 4*25
= 25/100
All other fractions are not equivalent to 1/4
Answer: c. 25/100
Thank you.
