Answer:
7 × 3 = 21
Step-by-step explanation:
3 rows of flowers with 7 flowers in each row means 3 times 7, and 3 times 7 equals 21.
Answer:
X and Y = 4
Well, it's a right triangle. The red box means 90 degree angle. So I would say that all the sides are equal.
4 x - 2 y = 6
2 x + y = 5 / * 2 ( we will multiply both sides by 2 )
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4 x - 2 y = 6
+
4 x + 2 y = 10
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8 x = 16; x = 2
4 + y = 5
y = 5 - 4; y = 1
In the system of equations D :
8 x = 16; x = 2 ,
8 + 2 y = 10
2 y = 2, y = 1
Answer: D ) is the equivalent system
