Answer:
The answer is (A) (-6,4).
Step-by-step explanation:
First you have to multiply the first equation by 6 and the second equation by 4. Then next you subtract the second equation from 1.
30x + 24y = - 84
12x + 24y = 24
18x + 0. = - 108
=> 18x = - 108
=> x = - 108 / 18
=> x = - 6
Then for the next step
then put in x = - 6 in equation 2 and solve for y
(
3x + 6y = 6)
(3×(-6) + 6y = 6)
( - 18 + 6y = 6)
( 6y = 18 + 6
)
( 6y = 24)
(y = 4
)
(I really do hope this helps!!!)
Hi,<span>
Let x be 100 dollars(since per cent means out of 100)(also SP)
</span>SP without sales tax= 100 - d%/100 * SP
= 100-20/100 * 100
=80/100 * 100
= 0.8 * 100
= 80 dollars=SP without tax
tot. SP(SP with tax)= 100 + tax%/100 * SP
=100 + 10 /100 * 80
= 110/100 * 80
= 11/10 * 80
=1.1* 80
=88%
Breyanna will have to pay 88% <span>of the dress original price.
Hope this helps you.</span>
Answers: All the options are right and have a special meaning.
Explanation:
1) <span>Δy = 0
Means y is constant, which is also that the slope is zero.
The function is a horizontal line (paralell to the x-axis)
2) Δx = 0
Means x is constant, the slope is not defined (∞).
The function is a vertical line (parallel to the y-axis)
3) Δy = n
Means that the change in y is constant. So, only if the change in x is also constant the slope is constant and the function is linear.
This is because the slope is Δy / Δx.
4) Δx = n
Means the change in x is constant. So, only if Δy is constant it is a linear function, for the same reason explained above
5) Δy = -n and and 6) Δx = -n
Same reasoning of 3 and 4.
</span>
I don't think you can as long as your not plus.
Answer:
4
Step-by-step explanation:
2 x 4 = 8
Absolute value means no symbols so it would just be 2 x something equals 8 which is 4.
