Answer:
2x + 3y > 100
x + y = 40
Step-by-step explanation:
This is the answer because it shows the price of each and the combined products equaling more than 100 dollars, and the bottom one shows that the combined total of jewelry can not exceed 40 pieces.
Answer:
She should leave a total of $78.
Step-by-step explanation:
To find this, we first need to find the tip amount. We can do this by multiplying the total by the tip percentage.
$65 * 20% = $13
Now that we have that, we need to add it to the cost.
$65 + $13 = $78
Answer:
2x + 14
Step-by-step explanation:
To evaluate h(x + 5) substitute x = x + 5 into h(x), that is
h(x + 5) = 2(x + 5) + 4 = 2x + 10 + 4 = 2x + 14
The equivalent expression to the given expression 25x²+16−40x−64y² are; (5x-4)²−64y² and (5x−4−8y)(5x+4+8y)
<h3>Difference of two squares</h3>
According to the question:
- We are required to determine the equivalent expression.
When we try to factorise the given expression systematically; we have;
- 25x²+16−40x−64y² = (25x²+16−40x)−64y²
By the difference of two squares concept;
Therefore, an equivalent expression is; (5x-4)²−64y²
Similarly, (5x-4)²−64y² is the difference of two squares and can be rewritten as; (5x−4−8y)(5x+4+8y)
Hence, we have the suggested expressions as equivalent expressions.
Learn more about equivalent expression:
brainly.com/question/2972832
The length of rectangle is 5 units and width is 4 units.
Step-by-step explanation:
Given,
Area of rectangle = 20
Width of rectangle = w
Length of rectangle = 2w-3
Area = Length * Width
Factorizing
Either;
2w+5=0 =>2w=-5
Or,
w-4 = 0 => w=4
As width cannot be negative, therefore,
width of rectangle = 4 units
length of rectangle = 2w-3 = 2(4)-3 = 8-3 = 5 units
The length of rectangle is 5 units and width is 4 units.
Keywords: area, rectangle
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