Answer:
D. (2, 1)
Step-by-step explanation:
Given:
y = 6x - 11
-2x - 3y = -7
Required:
Find the solution.
Solution:
y = 6x - 11 ---› eqn. 1
-2x - 3y = -7 ----› eqn 2
Substitute y = (6x - 11) into equation 2.
-2x - 3(6x - 11) = -7
-2x - 18x + 33 = -7
-20x + 33 = -7
Subtract 33 from each side
-20x = -7 - 33
-20x = -40
Divide both sides by -20
x = -40/-20
x = 2
Substitute x = 2 into equation 1.
y = 6x - 11 ---› eqn. 1
y = 6(2) - 11
y = 12 - 11
y = 1
The solution is very (2, 1)
Answer:
7263
Step-by-step explanation:
I pretty sure that the answer is 1.
Option A
<u>Answer:
</u>
The product of -4 and 8.1 is -32.4
<u>Solution:
</u>
When we multiply a negative number with a positive number we get the resultant product as a negative number.
Here we have to multiply - 4 which is a negative number and 8.1 which is a positive number.
To simplify the multiplication calculation we can write 8.1 as 8+0.1 and then multiply 4 with both 8 and 0.1
-4
8.1 = -4
(8+0.1)
⇒ -4
8.1 = -4
8 – 4
0.1 [Multiplying 4 with 8 and 0.1]
⇒ -4
8.1= -32 - 0.4
⇒ -4
8.1= - 32.4
Thus the product of -4 and 8.1 is -32.4
The ratio is
10 : 5.75
After simplifying the ratio you are left with
1.74 : 1