4 * p + 6 = x
4 * p = x + 6
(4 * p) + 6 = x
p: Number of pencils per. box
x: Unknown value of total amount of pencils
+6: Pens in Kara's backpack
I need help pronto {(2,2,),(-5,2),(6,6),(9,4),(4,9)} is it a function and explain please
Mrac [35]
Answer:
yes, because the x values are all different. if the y values are the same it doesnt matter.
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
The answer is <span>x - 1 = 3x + 9
All steps are:
</span>Step 1: 4ˣ⁻¹ = 64ˣ⁺³<span>
Step 2: 4</span>ˣ⁻¹ = (4³)ˣ⁺³ <span>
Step 3: 4</span>ˣ⁻¹ = 4³ˣ⁺⁹
Step 4: x - 1 = 3x + 9
Step 5: x - 3x = 1 + 9
Step 6: -2x = 10
Step 7: x = 10/-2
Step 8: x = -5
Answer:
15.
16. 10 ml of 20% saline and 40 ml of 10% saline
Step-by-step explanation:
A chemist takes x ml of 20% saline and y ml of 10% saline. In total, he takes
x + y ml that is 50 ml, so
There are 
ml of salt in x ml of 20% saline and 
ml of salt in 10% saline. There are 
ml of salt in 50 ml of 12% saline. Thus,
15. We get the system of two equations:
16. Solve this system. From the first equation:
Substitute it into the second equation:
