All categories

3 years ago

A box of 21 holiday cards sells for $3.99. What is the unit price per card?

Mathematics

2 answers:

qaws [65]3 years ago

8 0

Answer:

i think its .19 hope it helps

Step-by-step explanation:

Andrei [34K]3 years ago

5 0

Answer:

5.26

Step-by-step explanation:

just add 0.02 0.19 3.78 5.26 the subtract 5.26 and 3.99

You might be interested in

Name the polygon. Write whether it is regular or not regular.

andrew-mc [135]

Answer:

since the polygon has eight sides, it's an octagon and no, it's not regular since length of all sides of a regular polygon must be equal but in that octagon, not all sides are equal.

8 0

3 years ago

PLEASE HELP WILL MARK BRAINLIEST The frequency f (in waves per second) and the wavelength w (in meters) of a sound traveling

marshall27 [118]

You gave us the speed and the frequency, and you need the wavelength.

You were also nice enough to remind us that (fqy)x(lng) = speed.

So . . . F x W = 343 m/s

Divide each side by F :

W = (343 m/s) / F

W = (343 m/s) / (240 / s)

W = (343/240) m

W = 1.429 meters

8 0

2 years ago

3.2] I can rearrange formulas to solve for a specified variable. Solve for r. h=r-m

Lesechka [4]

Answer:

r = h + m

Step-by-step explanation:

h = r - m

Switch sides.

r - m = h

Add m to both sides.

r - m + m = h + m

Simplify the left side. -m + m = 0

r = h + m

6 0

1 year ago

|60| ___ |-60| is it greater than > equal to = or less than

o-na [289]

Answer:

$|60| = | - 60|$

Step-by-step explanation:

They are equal. When the negative sign is inside the box the absolute value is positive, when the negative sign is outside the box THEN it is negative.

5 0

2 years ago

Read 2 more answers

let a,b,c,d be four integers (not necessarily distinct) in the set {1,2,3,4,5}. the no. of polynomials x^4+ax^3+bx^2+cx+d which

Eddi Din [679]

By either long or synthetic division, it's easy to show that

$\dfrac{x^4+ax^3+bx^2+cx+d}{x+1}=x^3+(a-1)x^2+(-a+b+1)x+(a-b+c-1)-\dfrac{a-b+c-d-1}{x+1}$

The quartic will be exactly divisible by $x+1$ when the numerator of the remainder term vanishes, or for those values of $a,b,c,d$ such that

$a-b+c-d-1=0$

I'm not sure how to count the number of solutions (software tells me it should be 80), but hopefully this is a helpful push in the right direction.

8 0

3 years ago