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Rudik [331]
3 years ago
7

An aquarium has a length of nº + 2 inches, a height of

Mathematics
1 answer:
zimovet [89]3 years ago
5 0

Answer:

V  = 10(n^2 + 7n + 10) inches^3

Step-by-step explanation:

The volume of a rectangular aquarium is V = L*W*H.

Here, V = (n + 2)(10)(n + 5), or

          V  = 10(n^2 + 7n + 10) inches^3.

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If y = kx, what is the value of k if y = 20 and x = 0.4?<br> A) 5 <br> B) 8 <br> C) 9.6 <br> D) 50
mariarad [96]

Answer:

D) 50

20/0.4=50

Step-by-step explanation:


7 0
3 years ago
a painter bought 8 gallons of paint just enough to cover 2 rooms. One room is twice the size of the other and requires only 2 co
e-lub [12.9K]
So, he's got 8 gallons of paint, to paint the two rooms, of the two rooms, one is twice as big as the other

now, "x" is how many gallons to paint the larger room with only one coat, however, the larger room uses 2 coats, so, the larger room uses 2x of paint
now, the client declined to paint the smaller one

so hmmm as I read... well, we dunno how many coats will go to the smaller room for one, we know the larger will use 2 coats, or 2x.. if we assume the smaller room was going to use say 1 coat or 1/2x

then one can say the painter bought enough for both rooms, 1coat for the small one and 2coats for the larger one

so, the paint the larger room, you'll 2x of paint, for 2coatsand to paint the smaller room, you'll need 1/2 x, because x gallons is how much is needed for the larger room, but the larger room is twice as big, thus the smaller room uses 1/2 of that in gallons

thus, with those assumptions, that the small room will use only 1 coat
\bf \cfrac{1}{2}x+2x=8\implies \cfrac{5x}{2}=8\implies x=\cfrac{16}{5}
that's who many gallons are needed for 1 coat in the larger roomrecall "x" is 1coat for the larger room

now, the client decides to skip the smaller roomso, the painter will only need 2x gallons then

\bf 2x\implies 2\cdot \cfrac{16}{5}\implies \cfrac{32}{5}\implies 6.4\ gallons

he bought 8 gallons, 8 - 6.4, he's got left 1.6 gallons
3 0
3 years ago
Read 2 more answers
Please help me out if possible!
oksano4ka [1.4K]

Answer:

<h2><u>111°</u></h2>

Step-by-step explanation:

Hi,

So lets answer this question;

Here we know that:

69° + z = 180° [Straight angle or Supplementary angle]

⇒ z = 180° - 69°

      = <u>111°</u>

3 0
3 years ago
If you hike 2 3/4 miles in 1 hour and 15 minutes how many miles can you hike an hour?
larisa86 [58]
I think it's something like a mile or so, maybe a mile and a half. Sorry if I'm wrong.
8 0
3 years ago
•the total amount paid for the initial deposit and 6 months of rent is the same at all three apartment complex, $5150
Anarel [89]
Initial dep for A = $200
for A, B, C :
initial dep  + 6 (monthly rent) = $5150

For A:
$200 + 6(monthly rent A) = $5150
monthly rent A = (5150 - 200) / 6 = $825
For B:
monthly rent B = monthly rent A - $25 =  $800 
initial dep  B  +  6(800) = 5150
initial dep B = 5150 - 4800 = $350
For C:
initial dep C = initial dep B + $150 = $500 
$500 + 6(monthly rent C) = 5150
monthly rent C = (5150 - 500) / 6 = $775
7 0
3 years ago
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