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Masja [62]
3 years ago
8

What is 30%of 20_______? ​

Mathematics
2 answers:
Travka [436]3 years ago
8 0

Answer: 6

Step-by-step explanation:

lisabon 2012 [21]3 years ago
5 0

Answer:

6

Step-by-step explanation:

30/100 * (20)

.3 (20) = 6

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Which function is graphed below?
photoshop1234 [79]
The answer for the question above is the B/Second one or

Y=3(1/3)^x
3 0
3 years ago
Taylor baked 702 cookies you sew them in boxes of 18 .Afters spelling on the boxes of cookies he earn 13 6.15 what was the cost
lyudmila [28]
You devide 702 by 18 then devide 136.15 by 39, and it equals $3.49 each
4 0
3 years ago
Peter is buying office supplies. He is able to buy 3 packages of paper and 4 staplers for $40, or he is able to buy 5 packages o
Lina20 [59]

Answer:

paper = $4 and stapler = $7

Step-by-step explanation:

let p represent paper and s represent stapler, then

3p + 4s = 40 → (1)

5p + 6s = 62 → (2)

Multiplying (1) by 5 and (2) by - 3 and adding will eliminate p

15p + 20s = 200 → (3)

- 15p - 18s = - 186 → (4)

Add (3) and (4) term by term to eliminate p

2s = 14 ( divide both sides by 2 )

s = 7

Substitute s = 7 into either of the 2 equations and evaluate for p

Substituting into (1)

3p + 4(7) = 40

3p + 28 = 40 ( subtract 28 from both sides )

3p = 12 ( divide both sides by 3 )

p = 4

Thus package of paper costs $4 and stapler costs $7

6 0
3 years ago
determine the quadratic function of f whose graph is given. The vertex is (1,-3) and the y-intercept is -2
LuckyWell [14K]
Hmmm the y-intercept is at -2?  what does that mean?  well, is where the graph "intercepts" or touches the y-axis, and when that happens, x = 0, so the point is really ( 0 , -2 ).

and we know where the vertex is at.  Let's assume a vertical parabola, in which case the squared variable is the "x".

\bf \qquad \textit{parabola vertex form}\\\\
\begin{array}{llll}
\boxed{y=a(x-{{ h}})^2+{{ k}}}\\\\
x=a(y-{{ k}})^2+{{ h}}
\end{array} \qquad\qquad  vertex\ ({{ h}},{{ k}})\\\\
-------------------------------\\\\
vertex
\begin{cases}
h=1\\
k=-3
\end{cases}\implies y=a(x-1)^2-3
\\\\\\
\textit{now, we also know that }
\begin{cases}
x=0\\
y=-2
\end{cases}\implies -2=a(0-1)^2-3
\\\\\\
1=a(-1)^2\implies \boxed{1=a}\qquad thus\implies 
\begin{cases}
y=1(x-1)^2-3\\
\textit{or just}\\
y=(x-1)^2-3
\end{cases}
6 0
4 years ago
I need help on this question, I really do not know this.
marissa [1.9K]
Answer: A

Pie charts are generally used to show percentages or proportional data.
3 0
3 years ago
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