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3 years ago

Gracie uses 10 beads on each necklace she makes. She has 60 beads to use. How many necklaces can Gracie make?

Mathematics

2 answers:

maria [59]3 years ago

5 0

She can make 6 necklaces.

julsineya [31]3 years ago

5 0

Gracie can make 6 necklaces.
60 divided 10 = 6
Hope this helps lol

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21 x ________ ÷ 3 = 21 *

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Answer:

first one: 3

second one: b

third one: 3.2

Step-by-step explanation:

first one:

21 x ________ ÷ 3 = 21

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(21 / 7 = 3)

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second one:

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Answer: c) There is not enough evidence to reject H0

Step-by-step explanation:

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3 years ago

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During the school year or each student planted 2 * 10^2 trees as part of a community service project. If there are 3.5 * 10^3 st

Nookie1986 [14]

Total 7*10^5 trees were planted.

Further explanation:

The product of both quantities will give us the total number of trees planted by the students for the community project.

So,

Given

$Trees\ planted\ by\ each\ student=2*10^2\\Total\ students\ in\ school=3.5*10^3\\Total\ trees\ planted= (2*10^2)*(3.5*10^3)\\= 7*10^5\ trees$

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Learn more about product and exponents at:

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3 years ago

What is the mass (in grams) of 8.11×1026 CO2 molecules?

Kobotan [32]

Answer:

It is 59,275.74 grams

Step-by-step explanation:

• Molecular mass of carbon dioxide

$= (12 \times 1) + (16 \times 2) \\ = 12 + 32 \\ = 44 \: g$

[ molar masses: C = 12 g, O = 16 g ]

• From avogadro's number, it says 1 mole contains 6.02 × 10^23 molecules or atoms.

But 1 mole is equivalent to its molar mass in terms of weight, therefore;

${ \sf{6.02 \times {10}^{23} \: molecules = 44 \: g }}\\ { \sf{8.11 \times {10}^{26} \: molecules =( \frac{8.11 \times {10}^{26} }{6.02 \times {10}^{23} } \times 44) \: g}} \\ \\ = { \boxed{ \boxed{ \bf{59275.7 \: \: g}}}}$

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3 years ago

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Answer:

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Step-by-step explanation:

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