Answer:
there's only one graph that I see so please take a better picture so therefore I can see the whole option choices to help you
Step-by-step explanation:
Answer:
20 + 10 = 30
Step-by-step explanation:
The sum of x and y is 30. In other words, x plus y equals 30 and can be written as equation A:
x + y = 30
The difference between x and y is 10. In other words, x minus y equals 10 and can be written as equation B:
x - y = 10
Now solve equation B for x to get the revised equation B:
x - y = 10
x = 10 + y
Then substitute x in equation A from the revised equation B and then solve for y:
x + y = 30
10 + y + y = 30
10 + 2y = 30
2y = 20
y = 10
Now we know y is 10. Which means that we can substitute y for 10 in equation A and solve for x:
x + y = 30
x + 10 = 30
X = 20
Summary: The sum of two numbers is 30 and their difference is 10. What are the two numbers? Answer: 20 and 10 as proven here:
Sum: 20 + 10 = 30
Difference: 20 - 10 = 10
Answer:
Perimeter of rectangle = 140 cm.
Step-by-step explanation:
As we know that,
Rectangle is defined as a quadrilateral having opposite sides are equal and each angle are at 90°.
Let the length of rectangle = l
And the width = b
Therefore,
Perimeter of rectangle is given by = 2 (l × b)
From the question,
Given:
length = l = 17.5 cm
Width = b = 40 mm = 4 cm
( because 1 cm = 10 mm)
Perimeter of rectangle is given by = 2 (l × b) = 2(17.5 × 4) = 140 cm.
Hence, the perimeter of rectangle = 140 cm.
Answer:y=hfhdb b
Step-by-step explanation: