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mylen [45]
3 years ago
15

Write an inequality to represent the phrase: The sum of a number and 7 is no more than 53.

Mathematics
2 answers:
vlada-n [284]3 years ago
6 0

7+n<53 put the line on the bottom of the less than sign

Tanzania [10]3 years ago
4 0
Your answer is A if I’m not mistaken
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B is the midpoint of segment AC; AB = 8v, and AC = 2v + 42. What is BC?
Alona [7]
2 * AB = AC  
2 * 8v = 2v + 42
16v - 2v = 42
14v = 42
v = 42/14
v = 3

BC = AB = 8v = 8*3 = 24
7 0
3 years ago
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The denarius was a unit of currency in ancient rome. Suppose it costs the roman government 101010 denarii per day to support 444
givi [52]

<u>the correct question is</u>

The denarius was a unit of currency in ancient rome. Suppose it costs the roman government 10 denarii per day to support 4 legionaries and 4 archers. It only costs 5 denarii per day to support 2 legionaries and 2 archers. Use a system of linear equations in two variables. Can we solve for a unique cost for each soldier?

Let

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y-------> the cost to support an archer per day

we know that

4x+4y=10 ---------> equation 1

2x+2y=5 ---------> equation 2

If you multiply equation 1 by 2

2*(2x+2y)=2*5-----------> 4x+4y=10

so

equation 1 and equation 2 are the same

The system has infinite solutions-------> Is a consistent dependent system

therefore

<u>the answer is</u>

We cannot solve for a unique cost for each soldier, because there are infinite solutions.

5 0
3 years ago
Write the equation of the line that passes through (1, 3) and has a slope of 2 in point-slope form
raketka [301]

Answer:

y-3= 2(x-1)

Step-by-step explanation:

1. The equation of a line in point slope form is y-y1= m(x-x1)

2. m=slope and (x1,y1) is the point the line passes through

3. The point the line passes through is (1,3)

4, The slope is 2

5. Therefore the answer is y-3=2(x-1)

3 0
3 years ago
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Multiply 400 times 0.70 and that’s how you get the % (in this case 280)
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Ella bought 8 keychains. She spent 4 dollars on each KeyChain. Hope this helps
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