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2 years ago

Determine which is the better buy. 9 straps for $10.25 or 30 straps for $66.00

Mathematics

2 answers:

alexdok [17]2 years ago

7 0

Answer:

9 straps for $10.25

Step-by-step explanation:

Price rate

9 straps for $10.25 = 10.25/9 = $1.14 per strap
30 straps for $66 = 66/30 = $2.20 per strap

Better buy

9 straps for $10.25
Less cost per strap
better buy

musickatia [10]2 years ago

7 0

Answer:

9 straps

Step-by-step explanation:

If you're selling 30 straps for $66 then you get a 2.2 per each

But 9 straps for $10.25 will get 1.139

So, the value that's smaller which is 9 straps for $1.139 is a better buy

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Explain how (-3) x (-3) = 9 using coupons as the real world example

klasskru [66]

Answer:

a negative multiplied by a negative is always a positive

Step-by-step explanation:

so, -3 x -3 =9

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3 years ago

Read 2 more answers

Bases are squares with sides that measure 27 inches. The height is 12 inches.

Elan Coil [88]

Answer:

Part 1) $V=8,748\ in^3$

Part 2) $SA=2,754\ in^2$

Step-by-step explanation:

The correct question is

Find the volume and the surface area of a rectangular prism. Bases are squares with sides that measure 27 inches. The height is 12 inches.

Part 1) Find the volume of the prism

The volume of the prism is equal to

$V=Bh$

where

B is the area of the base

h is the height of the prism

Find the area of the base B

$B=27^2=729\ in^2$ ---> the base is a square

we have

$h=12\ in$

substitute

$V=(729)(12)=8,748\ in^3$

Part 2) Find the surface area of the prism

The surface area of the prism is equal to

$SA=2B+Ph$

where

B is the area of the base

P is the perimeter of the base

h is the height of the prism

Find the perimeter of the base P

$P=4(27)=108\ in$

substitute the values in the formula

$SA=2(729)+108(12)=2,754\ in^2$

3 0

4 years ago

NEED HELP ASAP!!!!

Genrish500 [490]

Answer:

B) Jill omitted a factor pair, which affected the GCF and factored expression.

Step-by-step explanation:

Jill is factoring the expression 13xy-52y. Her work is shown below.

Factors of 13xy: 1, 13, x, y

Factors of 52y: 1, 2, 26, 52, y OOPSIE she forgot 4,13

GCF: y

Factored expression: y(13x-52) 13y (x-4)

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3 years ago

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Describe the error Sarah made when simplifying the expression shown. -5(x-2)=-5x-10

prisoha [69]

The answer will be 1100283738292

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3 years ago

If f(x)=|x+7|, find f(−12). −19 −5 5 19

Slav-nsk [51]

Answer:

Step-by-step explanation:

insert f(-12) for f(x) and solve

f(-12)=|-12+7|

add -12 and 7

f(-12)=|-5|

absolute value makes it positive

f(-12)=5

6 0

3 years ago

Read 2 more answers

Determine which is the better buy. 9 straps for ​$10.25 or 30 straps for ​$66.00

Determine which is the better buy. 9 straps for $10.25 or 30 straps for $66.00