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Nina [5.8K]
2 years ago
10

Please help!!!!!!!!!!​

Mathematics
2 answers:
a_sh-v [17]2 years ago
6 0

Answer:

The average amount Mrs. Johnson spent per week is 70 dollars.

Step-by-step explanation:

47+96+78+61+68/5 = 350/5 = 70

Minchanka [31]2 years ago
4 0

Answer:

The overall average is 70 dollars for all weeks together

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What is the slope of line p?
Digiron [165]

Answer:

2/3

Step-by-step explanation:

Slope is rise over run which is 2/3

3 0
2 years ago
The price of an iphone was reduced from $960 to $840. By what percentage was the price of the iphone reduced?
Taya2010 [7]

Answer:

13.5%

Step-by-step explanation:

I hope this helps

5 0
3 years ago
Solve in simultaneou linear equation.
dangina [55]

Answer:

The bag costs 1500, while the umbrella cost 500

Step-by-step explanation:

Let the cost of the bag be b and the cost of the umbrella be u

Total cost is;

b + u = 2,000 •••••(i)

From the second part of the question;

b = 5u-1000 ••••••(ii)

Substitute ii into i

5u-1000 + u = 2000

6u = 2000 + 1000

6u = 3000

u = 3000/6

u = 500

To get b, substitute the value of u into equation ii

b = 5(500)-1000

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5 0
2 years ago
Suppose planet A's diameter is approximately 8 times planet B's and both bodies are spheres. What is the ratio of their volumes?
lana [24]

Answer:

The ratio of planet B's volume to planet A's volume is 1:512 or 1/512

Step-by-step explanation:

Volume of sphere = 4/3 π r^3

r = d/2

Radius of palnet A = 8/2 = 4

Radius of planet B = 1/2

Since 4/3 π is same in both volumes so, they cancel out when finding ratio.

Now ratio depends on radius cube of both planets

Volume of Planet B : Volume of Planet A

4/3 π(1/2)^3 :  4/3 π(4)^3

Cancelling  4/3 π on both sides

1/8 : 64

Multiply 8 on both sides

1 : 512

So, The ratio of planet B's volume to planet A's volume is 1:512 or 1/512

6 0
2 years ago
If 30 is increased by 60%, what is the new amount?
Lynna [10]
48 is the new amount
8 0
3 years ago
Read 2 more answers
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