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Oduvanchick [21]
3 years ago
14

The ratio of students to adults on a field trip is 7 to 1. Which table correctly represents this ratio?

Mathematics
2 answers:
ehidna [41]3 years ago
8 0

Answer:

b

Step-by-step explanation:

its literally right there

mylen [45]3 years ago
5 0

Answer:

C

Step-by-step explanation:

For every 7 students there is one adult, so you just have to do your multiplcations of 7. If there are 3 adults, there's 21 students, if there are 6 adults, there's 42 students, etc.

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a culture started with 2000 bacteria. after 6 hours it grew to 2400 bacteria. predict how many bacteria will be present after 16
valentina_108 [34]
Hi!

Let's find how much bacteria it grows per hour. 
2400 - 2000 = 400
bacteria per (divided by) hour
400/6 = 66.7
After 16 hours...
66.7 x 16 = 1067.2
Plus the original amount of bacteria
1067.2 + 2400 = 3467.2

The answer is 3067.2

Hope this helps! :)
-Peredhel
8 0
3 years ago
Evaluate the expression without using a calculator. 74 · 6
Reil [10]
The dot means to times, so in reality it's 74 times 6.
=
444
aka
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4 0
3 years ago
A house on the market was valued at $245,000. After several years, the value increased by 9%. By how much did the house's value
aniked [119]

We are given that a house had a value of $245000 and its value was increased by 9%. To determine how much is this value increase in dollars we need to multiply the value of the house by 9/100. We get this:

245000\times\frac{9}{100}=22050

Therefore, the increase in dollars is $22050. Now, to determine the current value we need to add the increase to the previous value, we get:

245000+22050=267050

Therefore, the current value of the house is $267050.

6 0
1 year ago
What is this please? i'll give u brainliest
Zolol [24]

Answer:

i dont know i just want points

Step-by-step explanation:

>;)

4 0
3 years ago
Mark can remember only the first 4 digits of his friend's phone number. He also knows that the number has 7 digits and that the
denis-greek [22]

Answer:

<em>19800 seconds, or 330 minutes, or 5 hours + 30 minutes</em>

Step-by-step explanation:

<u>Number Permutations</u>

We know the phone number has 7 digits, 4 of which are known by Mark. This leaves him 3 digits to guess with. We also know the last one is not zero. The number can be represented as

XXY

Where X can be any digit from 0 to 9 and Y can be any digit from 1 to 9. The first two can be combined in 10x10 ways, and the last one can be of 9 ways, this gives us 10x10x9 = 900 possible permutations.

If each possible number takes him 22 seconds, every possibility will need

22x900=19800 seconds, or 330 minutes, or 5 hours + 30 minutes

3 0
3 years ago
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