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3 years ago

PLZ HELP ASAP WILL GIVE BRAINLIEST!!!!!!!!!!!!!

Mathematics

2 answers:

jenyasd209 [6]3 years ago

5 0

Group 1: 31 <span> </span> Group 2: 9 <span> </span> Group 3: 28

REY [17]3 years ago

3 0

Biased survey gives completely different results than the unbiased ones. So the biased survey is the group 2

Since group 1 and 3 are unbiased, based on those,
mean number of visits per member = (4+10+6+3+8+7+9+3+4+7)/10 = 6.1

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Boyd grows only tomatoes and raspberries in his garden. Last year, he grew 140 pounds of tomatoes and 60 pounds of raspberries.

nadya68 [22]

Answer:

29%.

Step-by-step explanation:

We have been given that Boyd grew 140 pounds of tomatoes and 60 pounds of raspberries. This year, the production, by weight, of tomatoes declined by 20 percent, and the production, be weight, of raspberries declined by 50 percent.

First of all, we will find the weight of tomatoes and raspberries using the given information.

Since the production, by weight, of tomatoes declined by 20 percent, so this year production of tomatoes is 80% of 140 pounds.

$\frac{80}{100}\times 140=0.80\times 140=112$

Since the production, be weight, of raspberries declined by 50 percent, so this year production of raspberries is 50% of 30 pounds.

$\frac{50}{100}\times 60=0.50\times 60=30$

Total production this year: $112+30=142$ pounds.

Now, we will percent decrease formula.

$\text{Percent decrease}=\frac{\text{Initial value-Final value}}{\text{Initial value}}\times 100$

$\text{Percent decrease}=\frac{(140+60)-142}{140+60}\times 100$

$\text{Percent decrease}=\frac{(200)-142}{200}\times 100$

$\text{Percent decrease}=\frac{58}{200}\times 100$

$\text{Percent decrease}=0.29\times 100$

$\text{Percent decrease}=29$

Therefore, the total yield, by weight, of Boyd's garden declined by 29%.

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4 years ago

The table shows the number of tennis balls that can fit into a given number of cans each can holds the same number of balls fill

Pepsi [2]

Step-by-step explanation:

i could have answer it if you have given the table too!

that's it ....

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3 years ago

Is y2 = x a function thx

Charra [1.4K]

Answer:

Nothing further can be done with this topic. Please check the expression entered or try another topic.

y2=x

Step-by-step explanation:

Hope that my answer helped. If my answer did help you then would you be kind to give me brainliest because I've been trying to rank up. If not then it's totally fine. Thanks :)

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3 years ago

A can of orange juice has a circular base with an area of 156 square centimeters. The height of the can is 20 centimeters.

docker41 [41]

A Because if you do 156 x 20 it equals 3120. It’s A because the volume formula is Length x Width x height, And 156 and 20 were the only numbers given.

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4 years ago

I think it's a but not sure could you tell me if I'm right or if not tell me the answer

V125BC [204]

Answer:

Leonardo emiliano Castañeda

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3 years ago

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