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rewona [7]
3 years ago
14

{ y = 3x - 4 y = x + 2

Mathematics
1 answer:
Savatey [412]3 years ago
3 0
X=3 and y=5 that's all
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What is the final elevation of:
Lilit [14]

Answer:

the fish has a final elevation of negative 2

Step-by-step explanation:

4 0
3 years ago
Can anyone show me how to divide 931/7
Inessa [10]
(You go from left to right)
(Dividend is 931, divisor is 7)
Step 1: Look for a number smaller than 9 that is divisible by 7. 7 is the only one which is smaller than 9 and is divisible by 7. Now that you know 7*1=7, you put 1 above 931 (Dividend)
 Step 2: You subtract that number from the number in tens place. And bring the leftover down.
Step 3: You repeat Step 1 and 2 until either you get a remainder of 0 or the remainder in smaller than the divisor (in this case 7)
(Therefore 931/7=133, quotient=133, remainder=0)
^Hope this helps.

7 0
3 years ago
Find the volume of the sphere. Round your answer to the nearest tenth. Radius: 11 yd
Y_Kistochka [10]
Volume of the sphere is 4/3*pi*r^3

here, r is 11 yd.

volume = 4/3*pi*11^3
             = 4/3*pi*1331
             = 5575.28 yd^3
             = 5575.3 yd^3
5 0
3 years ago
During a test period, an experimental group of 10 vehicles using an 85 percent ethanol-gasoline mixture showed mean CO2 emission
Aleksandr-060686 [28]

Answer:

Probably unequal  ( B )

Step-by-step explanation:

<u>experimental group = 10</u>

using 85% ethanol gasoline

mean = 240 pounds per 100 miles

standard deviation = 20 pounds

<u>control group = 14 vehicles </u>

using regular gasoline

mean = 252 pounds per 100 miles

standard deviation = 15 pounds

comparing  the sample variance of each group shows that they are probably unequal using the equation below

Variance for a sample set of data = ∑ ( x - X ) ^2 / n - 1

where n = number of events

X = mean value

x = value of events

8 0
2 years ago
drew has 32 toy cars. He trades 7 of those cars for 11 others toy cars. how many toy cars does drew have now.
Jet001 [13]
Drew has 36 cars now.
8 0
2 years ago
Read 2 more answers
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