Solve the system algebraically. Check your work. 4x + 2y = 10 3x + 2y = 6
Make sure there are NO SPACES in your answer. Be sure to include a comma.
Answers
anyway
use elimination
multiply secn equation by -1
-3x-2y=-6
add to other equation
-3x-2y=-6
4x+2y=10 +
1x+0y=4
x=4
sub back to solve for y
3x+2y=6
3(4)+2y=6
12+2y=6
minus 12 both sides
2y=-6
divide 2
y=-3
(4,-3)
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Which statement is the following a counterexample for?2 ∙ 11 = 22A.If you multiply two numbers greater than 5, then their product is greater than 25.B.If the product of two numbers is even, then both numbers must be even.C.If x ∙ y = 1, then x or y must equal 1.D.If two times a number is greater than 16, then the number must be greater than 9.
B. no
Answers
No, they aren't
12² + 12²=16²
288=256
so they aren't a pythagorean triple
Answers
Answer:
the value of j in the given expression is: 16
Step-by-step explanation:
we are given the expression as:
so on squaring both side we have .
Hence the value of j is 16.
The equation is:
√j + √j + 14 = 3√j + 10
2√j + 14 = 3√j + 10
14 - 10 = 3√j - 2√1
4 = √j
Now, we will square both sides of the equation:
4² = (√j)²
16 = j.
Therefore, j is 16.
Answers
Answer:
10,000
Step-by-step explanation:
Answer:
10,000,000,000
Step-by-step explanation:
9877 million in number is 9,877,000,000
Round to one significant way means to round in such a way that you are left with only one non-zero digit.
Rounded to one significant figure:
10,000,000,000
Hope this helps
Good Luck
Answers
3x+3=234
3x=231
x=77
x+1=78
x+2=79
b 15 miles per hour
c 30 miles per hour
d 65 miles per hour
Answers
Answer: B) 15 mph
====================================================
Explanation:
The equation d = 65t means that the rate is r = 65. So Malcolm's family travels at an average rate of 65 mph. Note this is the slope of the line.
The graph has a slope of 50 because each time we go up 50, we move to the right 1. Ie, slope = rise/run = 50/1 = 50. You could use the slope formula to get the same result.
Since the graph has a slope of 50, this means Theo's family is going at an average speed of 50 mph.
Subtract the two speeds to get 65-50 = 15 mph
Answers
Answer:
-4ab.
Step-by-step explanation:
If the temperature is -2 degrees and it goes down another 2 degrees the new temperature is -2-2 = -4.
-2ab - 2ab = -4ab.
Answer:
-4ab because if you have a balance of negative two dollars and you spend two more dollars you have a balance of negative 4 dollars
Step-by-step explanation: