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Mila [183]
2 years ago
7

Cora bought 4 pounds of nuts and 2 pounds of raisins for $23.50. Mark bought 2 pounds of nuts and 4 pounds of raisins for $18.50

.
a.Write a system of equations that represents the price of the nuts, n, and the price of the raisins, r.
b.Solve the system. How much should a pound of nuts and a pound of raisins cost together?
Mathematics
1 answer:
shutvik [7]2 years ago
8 0

Answer:

4n+2r=23.50

2n+4r=18.40

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D

Step-by-step explanation:

Using the cosine ratio in the right triangle.

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x × cos66° = 13 ( divide both sides by cos66° )

x = \frac{13}{cos66} ≈ 32.0 ( to the nearest tenth )

8 0
3 years ago
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lorasvet [3.4K]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
The solid surface area is equal to the solid volume. Find the value of x? The measurements of the rectangular prism is 9 inches
Fudgin [204]

Answer:

x=7.2

Step-by-step explanation:

Let x represent height of the prism.

We know that volume of rectangular is equal to product of its height, width and length.

\text{Surface area of rectangular prism}=2(wl+lh+hw), where w, h and l represents width, length and height respectively.

We have been given that the surface area of rectangular prism is equal to the volume of the prism. So we can set an equation as:

lwh=2(wl+lh+hw)

We are also told that the measurements of the rectangular prism is 9 inches long and 4 inches wide. Upon substituting these values in above equation, we will get:

9\cdot 4\cdot x=2(4\cdot  9+9\cdot x+x\cdot 4)

Let us solve for x.

36x=2(36+9x+4x)  

36x=2(36+13x)

36x=2(36+13x)

36x=72+26x

36x-26x=72+26x-26x

10x=72

x=\frac{72}{10}\\\\x=7.2

Therefore, the value of x is 7.2 inches.

6 0
3 years ago
on a average saturday, 15/100 of tickets sold are child tickits. if there were 460tickits sold saturday, how many were sold to c
liraira [26]
The answer is 69, because 15% of 460 is 69

Hope this helps!
6 0
3 years ago
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Rama09 [41]

Answer:

0

0

3

3

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Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
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