Is 67 a prime number?

Mathematics

1 answer:

alexdok [17]4 years ago

7 0

Answer:

yes 67 is a prime number because has only 2 divisors

Step-by-step explanation:

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Rewrite the expression c + 0.25c using fractions instead of decimal numbers.

gogolik [260]

Answer:

$\huge\boxed{\frac{5c}{4},\ or\ c+\frac{1}{4}c,\ or\ c+\frac{c}{4}}$

Step-by-step explanation:

The decimal 0.25 can simply be converted into a fraction by putting it over 100.

0.25 = $\frac{25}{100}$

Then, simply divide both the numerator and denominator by 25 to get

$\frac{25/25}{100/25}$ , or $\frac{1}{4}$

Hope it helps :)

8 0

3 years ago

Which of the following best describes the solution to the system of equations below? -6x + 3y = -6 7x - 3y = 6

Nadusha1986 [10]

the answer would be 2 because u divide 8 by 4 and that gives u 2

hope this helps

4 0

3 years ago

The base of a regular hexagonal pyramid has an apothem length of 3√ in. What is the exact area of the base of the pyramid?

12345 [234]

1. To solve this problem you must apply the formula for calculate the area of a regular hexagon given the apothem, which is shown below:

A=(Perimeter x Apothem)/2

2. You have the apothem, so you can calculate the perimeter. First, you have to know the lenghts of the sides:

Tan(30°)=x/√3
x=1

Side=2x
Side=2

Perimeter=2x6
Perimeter=12

3. Then, you have that the area of the base is:

A=(Perimeter x Apothem)/2
A=12x√3/2
A=6√3
A=10.39
B=10.39 cm²

The answer is: B=10.39 cm²

3 0

3 years ago

The product of 4 and a number increased by 7,is -36. translate to an equation then solve

evablogger [386]

You have an English language sentence that we need to translate into Mathematics language.
English) (the product of a number and 9), (increased by 4), (is 58) Math) (Number x 4), (+ 7), (= -36) I put in the () to show you what parts go togetherCall the Number N, we can use anything (x,s, ...) but N makes sense (N x 4) + 7 = -36 Can you do the rest? subtract 7 from both sides, divide both sides my 4, there is the answer