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3 years ago

3. Jada is making a scale model of the solar system. The distance from Earth to the

Mathematics

1 answer:

JulsSmile [24]3 years ago

5 0

Answer:

kitchen

Step-by-step explanation:

if a foot is 2.389 then i would be pretty far but not a block away

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Your friends ate at a restaurant and left a $2.40 tip. They left a 15% tip. What was the cost of their bill before the tip?

zhannawk [14.2K]

Answer:

16$ is the bill

Step-by-step explanation:

so 2.40 is 15% of the bill, what i'd do is first divide 2.40(15%) by 3 to get 5% which can make this much easier, 2.40÷3=0.80. this means that 1.60 is 10% since 0.80 is 5%. so now we do 1.60×10=16$

3 0

2 years ago

Read 2 more answers

Eric Kweeder can paint a wall in

pentagon [3]

The answer of the question is 12minutes

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3 years ago

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Scientists found that a certain particle of dust doubles every 30 minutes. If the scientists tests this out with 21 grams of the

monitta

Answer: $1.663\times 10^{30}\ gm$

Step-by-step explanation:

Given

Population of dust particle doubles every 30 minutes

If the initial sample is 21 grams

The model to predict the population will be

$\Rightarrow P=21\cdot 2^{2t}$

Where t=time in hours

A day has 24 hours . So, for 2 days time is 48 hours

Population is given by

$\Rightarrow P=21\cdot 2^{2\times 48}\\\\\Rightarrow P=21\times 2^{96}\\\\\Rightarrow P=1.663\times 10^{30}\ gm$

7 0

3 years ago

What is 4(1-2b)+7b-10

shutvik [7]

Answer:

-6-b

Step-by-step explanation:

4(1-2b)+7b-10

Multiply what's in parantheses

4(1)=4

4(-2b)=-8b

4-8b+7b-10

Combine like terms

4-10 -8b+7b

-6-b

Hope this helps :)

6 0

3 years ago

susan made 4 dozen cupcakes she placed them in boxes containing 4 cupcakes and sold each box for 8.75. how much money did she ea

Natasha_Volkova [10]

Answer: Susan has 105 dollars

Step-by-step explanation:

dozen is 12, 12 times 4 is 48, 48 divided by 4 is 12, 12 times 8.75 is 105

6 0

2 years ago