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Alex777 [14]
2 years ago
15

A 30-ounce jar of peanut butter costs $6.00. A 40-ounce jar costs $7.20. Which jar of peanut

Mathematics
1 answer:
kobusy [5.1K]2 years ago
4 0

Answer:

The 40-ounce jar of peanut butter is cheaper per ounce.

Step-by-step explanation:

30-ounce jar:

6÷30=0.2

40-ounce jar:

7.2÷40=0.18

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You have been asked to design a rectangular box with a square base and an open top. The volume of the box must be 1536cm3. Deter
Katen [24]

Answer:

The dimensions of the box are:

Length = 11.53cm

Breadth = 11.53cm

Height = 11.53cm

Step-by-step explanation:

The volume of the box can be calculated with this formula:

The volume of the box = area of square base X height of the box.

We are given that the length of one side of the square base is = x cm, and its height is h cm.

Area of square base = x^{2}cm^{2}

The surface area of the box will be minimized if the height of the box, is the same as its length. hence, we can take the height of the box to be x cm also.

In this case, the volume of the box will be x^{3}=1536cm^{3}

from this, x =3\sqrt{1536}= 11.53cm

There fore, the box has its length, height, and width all having the same values.

The dimensions of the box are:

Length = 11.53cm

Breadth = 11.53cm

Height = 11.53cm

8 0
3 years ago
Which value of K will make x^2-1/4x+k a perfect square trinomial?
lakkis [162]
To find it it is
ax^2+bx+c
if the first term (a) is 1 then c=b/2
b=-1/4
(-1/4)/2=-1/4 times 1/2=-1/8

k=-1/8


4 0
4 years ago
10-3v-1)=5(9-v) solve for v please show work
Aleksandr [31]

Answer:

v=18

Step-by-step explanation:

10-3v-1=5(9-v)

first open the bracket

10-3v-1=45-5v

5v-3v=45-9

2v=36

v=18

7 0
3 years ago
(6 to the power of 3 times 3 to the power of 3) to the power of 2
frosja888 [35]

Answer:

True

Step-by-step explanation:

(6³ * 3³)² = 18⁶

Multiply inside the parenthesis.

(18³)² = 18⁶

When you put powers to powers, they multiply, eg:

(x³)⁴ = x³°⁴ = x¹²

18⁶ = 18⁶

True.

4 0
3 years ago
The recipe calls for 10 serving and I need 30 what number would I multiply
ivolga24 [154]

Answer:30

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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