Answer:
y= -3
Step-by-step explanation:
adding both the equation we get x= 7
and then put value of x in any one equation u will get y as -3
Looking at these two equations, you need to cancel out the variables with powers and the z. This can be simply done by adding them.
9y-2y^2+3z^2=867
+
9x+2y^2-3z^2=132
-----------------------------
9y+9x=999
Factor the 9 out of the left side.
9(x+y)=999
x+y=111
The answer is C (111).
Answer:
Part A: B) 3
Part B: $40
4. -1
7. 5x + 6y
8. Part A: y = 20x
8. Part B: $300
9. e > 12000 pounds
Step-by-step explanation:
Part A: x = 5t + 5
20 = 5t +5
15 = 5t
t = 3
Part B: x = 5t + 5
x = 5(7) + 5
x = 35 +5
x = 40
4. 24 - 5^2
24 - (5*5)
24 - 25 = -1
7. 2x + 4y + 5 + 2y - 5 + 3x
2x + 3x = 5x
4y + 2y = 6y
5 + (-5) = 0
5x + 6y
8. Part A:
Total = y
Lawns = x
Amount = $20
so y = 20x
8. Part B:
y = 20x
y = 20(15)
y = 300
9. The elephant weighs more than 12000 pounds
Elephant = e
More than = >
Pounds = 12000
e > 12000 pounds
<span><u><em>Answer:</em></u>
C) twenty-eight and nine tenths
<u><em>Explanation:</em></u>
We have two parts here, the whole number and the decimal part.
<u>1- for the whole number,</u> it is read normally as counting numbers. Therefore, 28 is read as twenty-eight
<u>2- for the decimal part, </u>it is read based on the place-value of the number. We know that the first number after the decimal point is in the tenth position. This means that 0.9 is read as nine tenths
<u>Combining the two,</u> we would conclude that 28.9 is read as twenty-eight and nine tenths
Hope this helps :)</span>
Answer:
6
Step-by-step explanation:
We can fill in what we know which is the length and perimeter.
82=2(35)+2(w)
Multiply 35 x 2 = 70
82-70= 12
12/2=6