Please help me with this i don’t understand at all!

PLEASE HELP !!!!!

lbvjy [14]

Every hour it snowed O.5 inch ;)

5 0

3 years ago

Convert 3/50 to a decimal

Marta_Voda [28]

Step 1

Convert the proper fraction to a decimal by using long division to divide the dividend(3)(numerator) by the divisor(50)(denominator)

Hence 3/50 in decimal = 0.06

5 0

2 years ago

Read 2 more answers

Souvenir hats, T-shirts, and jackets are sold at a rock concert. Three hats, two T-shirts, and one jacket cost $140. Two hats, t

Sergio039 [100]

$Let \: x \: be \: the \: price \: of \: a \: hat, \: y \: be \: the \: price \: of \: a \: T-shirt, \: and \: z \: be \: the \: price \: of \: a \: jacket. \: We \: have \: a \: system \: of \: equations: \\ 3x + 2y + z = 140 \\ x + y + z = 85 \\ x + 3y + 2z = 180 \\ x = 15 \\ y = 25 \\ z = 45. \\ So \: the \: price \: of \: a \: hat \: is \: 15, \: a \: T-shirt \: is \: 25 \: and \: a \: jacket \: is \: 45.$

6 0

3 years ago

Which of these is a Euler diagram that represents p->q

Klio2033 [76]

It’s the 3rd one ...

5 0

3 years ago

A librarian choose seven holiday books from a selection of ten to be displayed in the window of the library. in how many differe

Sergeu [11.5K]

Answer:

$_{10}C_7=\frac{10!}{7!(10-7)!}\\\\=\frac{10!}{7!3!}=\frac{10\times 9\times 8\times ...}{(7\times 6\times 5\times...)(3\times 2\times 1)}\\\\=\frac{10\times 9\times 8}{3\times 2\times 1}=\frac{720}{6}=120$

Step-by-step explanation:

A librarian choose seven holiday books from a selection of ten to be displayed in the window of the library. in how many different ways can she chose seven books?

This is a combination of 10 objects chosen 7 at a time:

$_{10}C_7=\frac{10!}{7!(10-7)!}\\\\=\frac{10!}{7!3!}=\frac{10\times 9\times 8\times ...}{(7\times 6\times 5\times...)(3\times 2\times 1)}\\\\=\frac{10\times 9\times 8}{3\times 2\times 1}=\frac{720}{6}=120$

3 0

3 years ago