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Bas_tet [7]
3 years ago
9

What is 30 percent of 70? show work please

Mathematics
1 answer:
mart [117]3 years ago
7 0
Percent means parts out of 100
x%=x/100

'of' means multiply

30% of 70 means
30/100 times 70=
3/10 times 70=
210/10=
21

answer is 21
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What do you get when you cross a dog with a rose use these letters abdc
Ksenya-84 [330]

Answer: not enough information given

Step-by-step explanation: no diagrams, photos, etc.

3 0
3 years ago
two trains leave the station at the same time one heading west and the other East the westbound train travels at 55 miles per ho
Diano4ka-milaya [45]
Recall your d = rt, distance = rate * time

so... one train goes west and the goes the opposite way... alrite... so... notice, by the time 338 miles have been covered by both, it will have been "t" hours, and whatever "t" is, is the same amount of time the westbound train has been running as well as the eastbound train has been running.

now, let's say, since by "t" hours they've covered 338 altogether, so, if the westbound train has covered say "d" miles, then the eastbound train would have covered the slack from 338 and d, that is, "338 - d".

\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
Westbound&d&55&t\\
Eastbound&338-d&75&t
\end{array}
\\\\\\
\begin{cases}
\boxed{d}=55t\\
338-d=75t\\
----------\\
338-\boxed{55t}=75t
\end{cases}
\\\\\\
338=75t+55t\implies 338=130t\implies \cfrac{338}{130}=t\implies \stackrel{hours}{2.6}=t

so, 2hours and 36 minutes.
8 0
3 years ago
I need help and I dont get this at all
mel-nik [20]

Answer:

The sides form a <u>right triangle</u>

Step-by-step explanation:

\sqrt(130)km = 11.4 km

4 0
3 years ago
Which integer represents the situation: A withdrawal of $367?
juin [17]

Answer:

-357

Step-by-step explanation:

Withdrawal is taking something so a withdrawal of $357 is saying taking away $357 which is -357

Hope this helps

3 0
3 years ago
Read 2 more answers
Hardcover book sales for $24 at the bookmark men days of total of $25.02 for the book what is the sales tax rate
Ber [7]
25.02-24=1.02
1.02/24=0.0425
The sales tax rate is 4.25%.
3 0
3 years ago
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