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PolarNik [594]
4 years ago
15

Solve the system: 2x – 6y + 4z = 3 -3x + 9y – 6z = -3 5x – 15y + 10z = 5

Mathematics
1 answer:
mel-nik [20]4 years ago
5 0

Answer:

7

Step-by-step explanation:

i hope this is right, I did the math

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The area of the conference table in Mr. Nathan’s office must be no more than 175 ft2. If the length of the table is 18 ft more t
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X(x+18) <= 175 
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<span>So, -25 <= x <= 7 </span>
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6 0
4 years ago
Use the given information to find the value of x
lora16 [44]
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4 0
2 years ago
The Richter scale is used for measuring the magnitude of an earthquake. The Richter magnitude is given R = 0.67log(0.37E) + 1.46
natka813 [3]

Answer:

7.9982

Step-by-step explanation:

-The function for an earthquake's magnitude is given by  R = 0.67log(0.37E) + 1.46

-E is energy in kwh.

#For 15,500,000,000 kilowatt hours the magnitude would be:

R = 0.67\ log(0.37E) + 1.46,\ \  E=15,500,000,000  \ kwh\\\\\therefore R=0.67 \ log(0.37\times 15,500,000,000)+1.46\\\\\\=7.9982

Hence, the earthquakes magnitude is 7.9982

7 0
4 years ago
Betty has 1/7 yard of ribbon. She used 1/6 of it. How many yards of ribbon did she use?
Ganezh [65]

Answer:

\frac{6}{7}

Step-by-step explanation:

SInce she used \frac{1}{6} of it we will divide \frac{1}{7} by \frac{1}{6}

\frac{1}{7}/ \frac{1}{6}=\frac{6}{7}


5 0
3 years ago
If the dimension is 2 inches by 1.5 inches the scale of the copy is 1 inches=40 centimeters
IceJOKER [234]
1 inch is 2.54 centimeters, 
5 0
3 years ago
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