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3 years ago

I will give you brainliest.

Mathematics

1 answer:

Setler79 [48]3 years ago

4 0

Pennies have been made with an alloy comprised of 97.5% zinc and 2.5% copper, but pennies minted before 1982 are 95% copper and 5% zinc. The price of copper has more than quadrupled over the past 10 years.

So a penny produced before 1982 is worth 2.2 cents based on the metal it contains.

On eBay, a lot of 5000 pennies has a face value of $50, but it will sell for $60.

You might be interested in

249798.828806 rounded to the nearest ten

NNADVOKAT [17]

Answer: 249800

Step-by-step explanation:

Uhh you round it.

5 0

2 years ago

Please help me!! I’m bad at math!!

tatyana61 [14]

Answer:

50.24

And, you're not bad at math! You goot this correct! :)

Step-by-step explanation:

c=25.12

we can use this to find the raidus!

plug it back into the circumference formula first.

c=(pi)(d)

25.12=3.14*d

divide both sides by 3.14!

d=8 but we need the radius, so we just divide by 2. 8/2 = 4. so the raidus is 4!

now we plug it into the area of a circle formula.

π · r2

3.14 * 4^2

3.14*16

50.24

5 0

2 years ago

Read 2 more answers

HELPPP!!! help me for a brainliest!

Radda [10]

=5^6/5^4

=5^(6-4)

=5^2 ANSWER..

8 0

3 years ago

AnyonE wanna help?????

olga_2 [115]

Answer:

Step-by-step explanation:

a). Let the missing term = a

(a + 7) + (2x - 6) = -4x + 1

(a + 2x) + (7 - 6) = -4x + 1

(a + 2x) + 1 = -4x + 1

(a + 2x) = -4x

a = -4x - 2x

a = -6x

So the equation is,

(-6x + 7) + (2x - 6) = -4x + 1

b). (a² + p + 1) - (q + 5a + r) = 4a² -2a + 7

I have assumed p, q and r are the variables at the blank spaces.

(a² - q) + (p - 5a) + (1 - r) = 4a² - 2a + 7

By comparing both the sides of the equation,

a²- q = 4a²

q = a² - 4a²

q = -3a²

p - 5a = -2a

p = -2a + 5a

p = 3a

1 - r = 7

r = 1 - 7

r = -6

So the equation will be,

(a² + 3a + 1) - (-3a² + 5a - 6) = 4a²- 2a + 7

3 0

2 years ago

Kyle wants to compare 0.02 to 1/4 using fractions. Which fraction can you use for 0.02?

Crazy boy [7]

Answer:

$\frac{1}{50}$

Step-by-step explanation:

$\text{Kyle wants to compare 0.02 to }\frac{1}{4} \text{ using fractions}\\\\\text{we need to convert 0.02 into fractional form.}\\\\\text{to convert a decimal into fractional form we divide by }10^n,\\\text{where n is the number of digits after decimal, and remove decimals}\\\text{from the number.}\\$

$\text{here in 0.02, we can see that the number of digits ater decimal is 2,}\\\text{so to convert it into fractional form, we get}\\\\0.02=\frac{2}{10^2}\\\\=\frac{2}{100}\\\\=\frac{1}{50}\\\\\text{so in decimal form, we can write 0.02 as }\frac{1}{50}\\$

3 0

3 years ago