Answer:
im pretty sure c but if im wrong im sorry
Step-by-step explanation:
Answer:
she now has $21 in her pocket
Step-by-step explanation:
Answer:
p + 9q.
Step-by-step explanation:
The explicit formula for the nth term of an A. P is
an = a1 + d(n - 1) where a1 = the first term and d = the common difference.
So the 10th term when a1 = p and d = q is:
a10 = p + q(10 - 1)
= p + 9q.
Answer:
a= -infinity to 3
Step-by-step explanation:
Given


Required
Determine the value of a such that the inequality has no solution
Considering the first inequality (<em>Solve for x)</em>:

Collect Like Terms


Divide both sides by 10

Reorder

This means that the least value of x is 2;
Substitute
in the second equation




Collect Like Terms


Reorder

This means that the least value of a is 4
Hence;
<em>The values of a for which the system has no solution is -infinity to 3</em>
Answer:
x=5
Step-by-step explanation:
Lets first solve for y on both sides:


Set the two equations equal to each other and solve for x:

Multiple both sides by 3:

Multiply both sides by 5:

Apply distributive property to both sides:

Add 20 to both sides:

Subtract 3x from both sides:

Divide both sides by 7:
