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ss7ja [257]
3 years ago
6

In a survey of 80 students, 25 said they planned on attending the pep rally. The school has 550 students. Predict the number of

students who plan to attend the pep rally.
Mathematics
2 answers:
siniylev [52]3 years ago
7 0
25 = 31.25% of 80
31.25% of 550 = 171.875…
Since a partial student can't attend, you round up.  Likely around 172 students will attend.
sineoko [7]3 years ago
3 0
80/25= 3.2
550/3.2= 171.875
so, 171.875 students round that up to 172
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1. There are two differnt maps of Ohio. The scale on the first map is 1 cm to 10 km. The distance from Cleveland to Cincinnati i
xeze [42]

Answer:

1.  0.8 cm

2.  1.6 cm

Step-by-step explanation:

1.

The scale for 2nd map is 1 cm to 50 km, that means "1 cm on map" is "50 km in real life".

We already know distance from Cleveland to Cincinnati is 40 km, which is less than 50, so we know the distance on map would be less than 1 cm.

So we set up ratio and figure out (let x be distance on map from Cleveland to Cincinnati):

\frac{1}{50}=\frac{x}{40}\\50x=40\\x=\frac{40}{50}\\x=0.8

Hene, 0.8 centimeters would be the distance in 2nd map

2.

A scale of 1:50 means 1 cm equal 50 cm

So, 0.8m would be

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That is 1.6 centimeters

7 0
3 years ago
Is -7.245 rational or irrational
Zina [86]
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Hope this helps!
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reply to this with answer Which best proves why the expressions 4 (x + 3) + 2 x and 6 (x + 2) must be equivalent expressions?
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Answer:

Given expressions are equivalent.

Step-by-step explanation:

Given expression:

4 (x + 3) + 2x and 6 (x + 2)

Find:

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Computation:

By taking LHS

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So,

Given expressions are equivalent.

3 0
3 years ago
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