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cupoosta [38]
3 years ago
14

A rectangular box is to have a square base and a volume of 20 ft3. If the material for the base costs $0.30 per square foot, the

material for the sides costs $0.10 per square foot, and the material for the top costs $0.20 per square foot, determine the dimensions of the box that can be constructed at minimum cost.
Mathematics
1 answer:
fomenos3 years ago
8 0

Answer:

Step-by-step explanation:

Im sorry i dont really know ur anwer.  Hope someone else can help you.

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A woman invested 3 times as much at 6% as she did at 3%. The total amount of interest she earns in 1 year from both accounts is
aivan3 [116]
882 in one
And 441 in the other (ps. 882 is for 6% and 441 for 3%)
5 0
3 years ago
Fill in the blank 57.59 - ___=1.29
mina [271]

Answer: 57.59- 56.3=1.29

Step-by-step explanation:

57.59-x = 1.29

-x= 1.29-57.59

(—) -x= - 56.3

x=56.3

5 0
2 years ago
The area of a rectangle is 72cm square. Length,/, of the rectangle is 6 cm longer than the width w
Butoxors [25]
As you haven't specifically stated what exactly the question is, I will be assuming that the question is most likely asking for what the dimensions ( length and width ) of the rectangle is. With this in mind, I will be answering the question so here I go...


STEP-BY-STEP SOLUTION:

Let's solve this problem step-by-step.

Let's first establish the formula for the area of a rectangle as displayed below:

Area = Length × Width

A = lw

From this, we will establish the values for each of the parts in the area formula using the information given in the problem as displayed below:

A = 72cm^2

l = w + 6

w = w

Now, we will substitute these values into the area formula and then make ( w ) the subject as displayed below:

A = lw

72 = ( w + 6 ) ( w )

72 = w ( w + 6 )

72 = w^2 + 6w

0 = w^2 + 6w - 72

0 = w^2 + 12w - 6w - 72

0 = w ( w + 12 ) - 6 ( w + 12 )

0 = ( w + 12 ) ( w - 6 )


w + 12 = 0

w = 0 - 12

w = - 12


w - 6 = 0

w = 0 + 6

w = 6

As the answer must be positive as measurements are always positive, the answer must be the option which is a positive number.

Therefore:

w = 6

Using the equation we made for the length before, we can substitute the value of ( w ) to obtain the value of the length as displayed below:

l = w + 6

l = ( 6 ) + 6

l = 12


FINAL ANSWER:

The dimensions of the rectangle are:

Length = 12cm

Width = 6cm


Please mark as brainliest if this was helpful! : )
Thank you <3
7 0
4 years ago
Parallelograms ABCD and EFGH are similar figures because angles A, B, C, and D are congruent to angles E, F, G, and H, respectiv
Ganezh [65]
If I’m reading this correctly, the correct answer would be 11, because AB is congruent to EF, and they gave you AB
8 0
3 years ago
Read 2 more answers
Matthew made slightly larger blanket that was 8 Ft long. Its area is 64 sq ft what is its perimeter?
Andreas93 [3]

Answer:

32 ft

Step-by-step explanation:

Given data

Length= 8ft

Area= 64 f^2

Let us find the width

Area= Length*Width

64= 8* Width

Width= 64/8

Width= 8ft

Hence the perimeter= 2L+2W

P= 2*8+2*8

P= 16+16

P= 32 ft

5 0
3 years ago
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