Answer:
2x + 7y
Step-by-step explanation:
3x + 5y - x + 2y
Arrange it to be simplified easier,
3x - x + 5y + 2y
3x - x = 2x
5y + 2y = 7y
2x + 7y
Answer:
The weight of Rachel is less than 40 Pounds.
The weight of Stephanie is less than 120 Pounds
Step-by-step explanation:
Sum of both both their weights is less than 160 pounds.
Let the weight of Rachel = k Pounds
⇒The weight of Stephanie = (3k) pounds
Now, according to the question:
k + 3k < 160
or, 4k < 160
⇒ k < 160/ 4 = 40
or, k < 40
⇒ The weight of Rachel is less than 40 Pounds.
and The weight of Stephanie is less than (3 k = 3 x 40) 120 Pounds
If you want the strip around the mat:
x=strip of mat
2(20+2x)+2(15+2x)=102
Distribute
40+4x+30+4x=102
Combine like terms
70+8x=102
Subtract 70
8x=32
Divide by 8
x=4
If you want the whole width of the mat:
w=15+x
w=15+2*4
w=23
Answer:
3.63E-5
Step-by-step explanation:
Convert 3.63 x 10^-5 from a scientific calculator
We do this by raising 10^n power * whole number entered where n=-5
3.63 x 10^-5 converted to a number = 3.63 x 1.0E-5
3.63 x 1.0E-5 converted to a number = 3.63E-5
Answer:
5x+2
Step-by-step explanation:
(9x+5)-(4x+3)
5x+2
