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2 years ago

15

Cloverdale Middle School is buying new helmets for the football team. Each helmet costs $89.95. How much money does the school s

pend if they buy 45 of these football helmets?

1 answer:

seraphim [82]2 years ago

4 0

Answer:

4047.75$

Step-by-step explanation:

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Problem:<br> 4 × 32 + 8 ÷ 2 - (5 + 3)

lubasha [3.4K]

Answer:

124

Step-by-step explanation:

is in the photo

i hope this helps :)

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2 years ago

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Jodie wanted to match Mandy's obstacle course record of 74.6 seconds. She had already spent fifty and one fourth seconds on wall

luda_lava [24]

Answer:

D. 13.79

Step-by-step explanation:

74.6-50.25-10.56=13.79

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2 years ago

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It takes 16 minutes for 9 people to paint 8 walls . How many minutes does it take for 4 people to paint 6 walls?

Soloha48 [4]

Answer:

27 minutes to complete the painting of 4 walls

Step-by-step explanation:

since 16m with 9p --> 8 walls

x minutes with 4p --> 6 walls?

let x= minutes

6 walls painted=(8/144 walls painted per minute)x

simplify

x= 6 divided by (8/144)

x=108 minutes (to complete 6 walls)

108/4=

27 minutes to complete the painting of 4 walls

4 0

3 years ago

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Suppose we want to build a rectangular storage container with open top whose volume is $$12 cubic meters. Assume that the cost o

Snezhnost [94]

Answer:265.25

Step-by-step explanation:

Given

Volume of box $=12 m^3$

height is 3 times the width

let height, length and breadth be H, L & B

$H=3\times B$

$V=12=L\times B\times H$

4=B^2\times L[/tex]

$L=\frac{4}{B^2}$

Cost of side walls $ $8/m^2$

Cost of base $ $12/m^2$

Cost of side walls $=(2LH+2BH)\cdot 8$

Cost of base $=12LB$

Total cost $C=16LH+16BH+12LB$

$C=48LB+48B^2+12LB$

$C=\frac{192}{B}+48B^2+\frac{48}{B}$

differentiate C w.r.t B to get minimum cost

$\frac{\mathrm{d} C}{\mathrm{d} B}=-\frac{192}{B^2}+2\times 48 B-\frac{48}{B^2}$

$B^3=\frac{240}{2\times 48}$

$B=1.35 m$

$H=3\times 1.35=4.07 m$

L=2.19 m

C=$ 265.25

3 0

3 years ago

Which is equivalent to the expression 4( +5) +4x +8

Ann [662]

Answer: 13+16x

Step-by-step explanation:

Okay so I just learned how to do that haha, so if the answer is wrongdoing I'm a sorry.

I added the 8 and five, then multiplyed the 4 and the 4 then added the x on the end.

8 0

3 years ago