Please help:) See pic attached

Mathematics

2 answers:

sukhopar [10]3 years ago

7 0

Answer:

I believe the answer is 3/10

Step-by-step explanation:

Or do you need the number of adults or fraction? The number of adults is 75

Lostsunrise [7]3 years ago

5 0

Answer:

Adults: 75, girls: 100, Boys: 75

Step-by-step explanation:

2/5 x 250 = 100( girls)

3/10 x 250 = 75 (boys)

250 - (100 + 75) = 250 - 175 = 75 (Adults)

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Superman needs to save Lois from the clutches of Lex Luthor. After flying for 7 seconds, he is 1687 meters from her. Then at 15

Rudik [331]

$\bf \begin{array}{ccll}
seconds&meters\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
7&1687\\
15&1215
\end{array}\\\\
-------------------------------\\\\$

$\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{ 7}}\quad ,&{{ 1687}})\quad 
% (c,d)
&({{ 15}}\quad ,&{{ 1215}})
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{1215-1687}{15-7}\implies \cfrac{-472}{8}
\\\\\\
\cfrac{-59}{1}\implies -59\frac{meter}{sec}\impliedby 
\begin{array}{llll}
average\\
rate\ of\\
change
\end{array}$

well, every second he's 59 meters closer to Lois, so if at 15seconds he's 1215 meters, then the second before that he was 1215+59 meters closer.

how close is he at 29 seconds? since the 29second is 14 seconds away from the 15th, just hop 14 times from the 15th second, or 1215 + 14(-29)

7 0

4 years ago

Read 2 more answers

docker41 [41]

Answer:

1115322

Step-by-step explanation:

In 1906, San Francisco felt the impact of an earthquake with a magnitude of 7.8.

Claimed statement is he worst is yet to come, with an earthquake 142,990 times as intense as the 1906 earthquake ready to hit San Francisco.

We need to find the magnitude of their claimed earthquake.

It can be calculated by simply multiplying 142,990 by 7.8 as follows :

$E=142990 \times 7.8\\\\=1115322$