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3 years ago

Elliot uses 3/8 pound of clay to make a charm for a necklace. how much clay does he use to make 4 charms?

Mathematics

2 answers:

Lapatulllka [165]3 years ago

5 0

Answer:

3/2 pound of clay is used

Sedbober [7]3 years ago

4 0

Answer:

1.5 lbs. of clay

Step-by-step explanation:

3/8 x 4 = 1.5

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Enter the value of p so that the expression 18n + 27 is equivalent to p(2n + 3)

Mamont248 [21]

Answer:

P = 9

Step-by-step explanation:

When P = 9, we could multiply 9 to (2n+ 3).

We would get:

18n + 27

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Have a great summer :)

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3 years ago

Two pipes A and B can fill a petrol tanker in 15 and 12 hours respectively. A third pipe C can empty the whole tanker in 6 hours

Irina-Kira [14]

Answer:

30 minutes

Step-by-step explanation:

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3 years ago

How are exponents and radicals used to present roots of real numbers

MissTica

Answer:

$\sqrt[n]{a} =a^{\frac{1}{n}}$

Explanation:

Roots of real numbers can be represented by <em>radicals</em> or by<em> exponents. </em>

First, I present some examples to show how exponents and radicals are related, and then generalize.

$\sqrt{4}=4^{(\frac{1}{2})}=(2^2)^\frac{1}{2}=(2)^{\frac{2}{2}}=2^1=2\\\\\\\sqrt{25}=(25)^{\frac{1}{2}}=(5^2)^{\frac{1}{2}}=(5)^{\frac{2}{2}}=5^1=5$

$\sqrt[3]{8}=(8)^{\frac{1}{3}}=(2^3)^{\frac{1}{3}}=(2)^{\frac{3}{3}}=2^1=2$

When you write 5² = 25, then 5 is the square root of 25.

And in general, if n is a positive integer and $a^n=x$ , then $a$ is the nth root of x.

Also, if n even (and positive) and $a$ is positive, then $a^{\frac{1}{n}}$ is the positive nth root of $a$

Thus,

$\sqrt[n]{a} =a^{\frac{1}{n}}$

5 0

3 years ago

David borrowed $30,000 to start a business. Four years later, he repaid the $30,000 along with an interest of $1,260. What was t

torisob [31]

Answer:

1.05%.

Step-by-step explanation:

If an amount of money, P, called the principal, is borrowed for a period of t years at an annual interest rate r, the amount of interest, I, is given by

I=PrtwhereIPrt=interest=principal=rate=time

The following information is given.

IPt=$1,260=$30,000=4 years

Substituting the given information into the simple interest formula and solving for r gives

I1,2601,260=Prt=(30,000)(r)(4)=120,000r

Dividing both sides by 120,000 and then converting to a percent, we have

r=1,260120,000=0.0105=1.05%

Thus, David's annual interest rate was 1.05%.

8 0

3 years ago

Read 2 more answers

Please help i dont know how to do this! HURRY

Lera25 [3.4K]

Answer:

200.5

Step-by-step explanation:

but Look it up because I'm doing the same thing because I'm not for sure

3 0

3 years ago

Read 2 more answers