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inysia [295]
3 years ago
14

Can you help me with the first one

Mathematics
1 answer:
kodGreya [7K]3 years ago
7 0
From what I see B. is 20 but for C I can't see the complete question
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I need help arranging cards in a 4 x 4 grid with numbers 1-9 so that the sum of each row and each column is 20. This what the gr
igor_vitrenko [27]

Answer:

8, 2, 8, 2

7, 3, 7, 3

6, 4 6, 4

9, 1, 9, 1

Step-by-step explanation:

In the picture, it shows two of each number so I'm gonna base it off the picture but let me know if I should base it off the wording.

So we know that half of 20 is 10. This will be valuable information. So we need the sum of two numbers to equal 10. So for the rows we can just do 8+2+8+2, 7+3+7+3, 6+4+6+4, 9+1+9+1.

Since there are 18 numbers, I'm assuming we don't have to use all of them.

3 0
3 years ago
Read 2 more answers
Three bags of chips costs m cents. At this rate, what is the cost, in cents, of one bag of chips?
olya-2409 [2.1K]

Answer: m/3 cents

Step-by-step explanation:

Hi, to answer this question we have to divide the total cost of the chips (m) by the number of bags of chips (3).

Mathematically speaking:

Cost of one bag chip: m/3 cents

Since the total cost is represented by a variable, the individual cost is an expression.

If we replace the value of m by a number we will obtain the result as a number.

Feel free to ask for more if needed or if you did not understand something.

8 0
3 years ago
What is 2.408 rounded to the nearest hundredth
frosja888 [35]
The answer yo your question is 2.41
8 0
3 years ago
Solve the system by graphing
Evgesh-ka [11]

Answer:

(-1,2)

Step-by-step explanation:

3x+5=-5x-3

3x+5x=-5-3

8x=-8

x=-1

y=3(-1)+5=2

y=-5(-1)-3=5-3=2

3 0
3 years ago
The average walking speed r of a person living in a population P in thousands is modeled by the function, r(p) = 0.37 ln p + 0.0
Veseljchak [2.6K]

Answer:

The average walking speed is 1.48 feet per second

Step-by-step explanation:

we have

r(p)=0.37ln(p)+0.05

where

r is average walking speed

p is the population  in thousands

In this problem we have

p=48,000/1,000=48 ----> because p in the equation is in thousands

substitute the value of p in the equation

r(p)=0.37ln(48)+0.05

using a calculator

r(p)=1.48\ ft/sec

4 0
3 years ago
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