Answer:
r = 1
Step-by-step explanation:
Step 1: Write equation
-3r + 18 = 15r
Step 2: Solve for <em>r</em>
- Add 3r to both sides: 18 = 18r
- Divide both sides by 18: 1 = r
- Rewrite: r = 1
Step 3: Check
<em>Plug in r to verify it's a solution.</em>
-3(1) + 18 = 15(1)
-3 + 18 = 15
15 = 15
Answer:
<em>4 and 1 / 3 cm</em>
Step-by-step explanation:
Consider the following;

Let us say that Height = x. If that is so, through algebra, let us solve for x;

<em>Solution ⇒ 4 and 1 / 3 cm</em>
Answer:
Step-by-step explanation:
Given that Darcie wants to donate minimum 3 blankets to donate to a homeless shelter. No of days left =60
No of days to complete one blanket = 1/(1/15) = 15 days
Hence in 60 days she has to complete ≥3 blankets
No of days she has to utilize for this will be ≥3(15)=45
No of days she can skip crocheting ≤15
Let x be the no of days crocheted and y no of days skipped
Then x+y≤60
See the graph attached as x axis for days crocheted and y for days skipped
No of blankets can be either 3 or 4.
Answer:
Vertex is (-4, -18)
Step-by-step explanation:
f(x) = 
Let (h, k) be the vertex
An easy way to find h is to use the formula h = -b/2a
In your case where f(x) =
a = 2 and b = 8
So, h = -8/2(1) = -8/2 = -4
Substitue -4 in for x to find k
k = (
) + 8(-4) - 2
= (16) - 32 - 2
= 16 - 32 - 2
= -18
Vertex is (-4, -18)
Note: Another way to find the vertex is to complete the square, but this can really be difficult in some cases
Answer:
0.3 (3 repeating)
Step-by-step explanation:
Hope this helps!!