Answer:
x=W/10y
Step-by-step explanation:
-3x + 4y = -18
2x - y = 7
(-2,-3)
(-2,3)
(2, -3)
(2, 3)
The solution of the system of linear equations given is (2,-3), the correct option is C.
The system of linear equation is set of equations which have a common solution.
The equations are
-3x+4y = -18
2x-y =7
The linear equations can be solved using substitution method
y = 2x -7 from equation 2 will be substituted in equation 1
-3x +4 ( 2x -7) = -18
-3x +8x -28 = -18
5x = 10
x = 2
y = 2 * 2 -7 = -3
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Answer:
Step-by-step explanation:
-3x + 4y = -18
8x - 4y = 28
5x = 10
x = 2
4 - y = 7
-y = 3
y = -3
(2, -3)
Answer:
Step-by-step explanation:
Proportion of Heat Loss Between sundown and midnight
Proportion of Heat Loss between midnight and 4 AM
Proportion of Total Heat Already Lost
Proportion of Remaining Heat
Between 4 AM and 5 AM, five-eighths of the remaining heat is lost.
Proportion of Heat Loss between 4 AM and 5 AM=
Therefore, Proportion of Remaining Heat Left
We therefore say that:
A) 72.14 pounds
B) 59.11 pounds
D) 26.31 pounds
If the total weight of the crate and two boxes is 98.45 pounds and one box weighs 32.8 pounds, and the other box weighs 39.34 pound, the weight of the crate is D) 26.31 pounds.
The weight of the crate can be determined by addition and subtraction.
Addition and subtraction involves the two of the four basic mathematical operations, including division and multiplication.
The total weight of the crate and two boxes = 98.45 pounds
The weight of one box = 32.8 pounds
The weight of the second box = 39.34 pounds
The total weight of the boxes = 72.14 pounds (32.8 + 39.34)
The weight of the crate = 26.31 pounds (98.45 - 72.14)
Learn more about addition and subtraction at brainly.com/question/4721701.
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Answer:
the crate weighs 26.31
Step-by-step explanation:
add 32.8 and 39.34 together and then subtract 98.45 from the sum. ^^
Step-by-step explanation:
Answer:
Step-by-step explanation:
Okay, so, 2 necklaces would be $20.
One hour would be + $2.75
Three hours would be + $8.25
So all the hours together would be $11
Then, you add $20 + $11 to get $31.
The original annual salary of Jessica is 42222
Let the original annual salary of Jessica be represented by x.
Percentage decrease in salary = 9%
Amount of the decrease = 3800
Therefore, based on the information given, the equation to solve the question will be:
9% × x = 3800
0.09 × x = 3800
0.09x = 3800
Divide both side by 0.09
0.09x/0.09 = 3800/0.09
x = 42222
Therefore, the original annual salary of Jessica is 42222.
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Answer:
Step-by-step explanation:
x = original salary
$3800 = (1-9%)x = (1-0.09)x = 0.91x
x = $3800/0.91 = $4175.82
The expression is
Answer:
7-n
Step-by-step explanation:
Answer:
The expression would just be 7-n