The two given equations are:
y = -2/3 x
4x - 9y = -40
Substitute by the first equation in the second as follows:
4x - 9(-2/3 x) = -40
4x + 6x = -40
10x = -40
x = -4
Answer:
The correct answer is Option 4: "The product of 3.5 and a number is greater than or equal to 7."
Step-by-step explanation:
The statement given is:
3.5 x greater-than-or-equal-to 7
The x in the given inequality can be considered a number as it is a variable which can take any value. So if we have to find a number which is greater than or equal to 7 in product with 3.5 this inequality is usable.
Hence,
The correct answer is Option 4: "The product of 3.5 and a number is greater than or equal to 7."
Answer:
C
Step-by-step explanation:
The first line goes to the right so it is an negative. The second line is also going to the right so it is also a negative. Two negatives make a positive!
It would be x^2+7x-4, you just move everything to one side.
0.7 as a fraction would be 7/10
