Answer:
A). X = -3
Step-by-step explanation:
Step 1: Add 20 to both sides.
Step 2: Divide both sides by 7.
Step 3: Check if solution is correct.
Answer:
Length of straw = 11 inch (Approx.)
Step-by-step explanation:
Given:
Length of cuboid = 9 inch
Width of cuboid = 5 inch
Height of cuboid = 4 inch
Find;
Length of straw
Computation:
Length of straw = Diagonal of cuboid
Diagonal of cuboid = √l² + b² + h²
Diagonal of cuboid = √9² + 5² + 4²
Diagonal of cuboid = √81 + 25 + 16
Diagonal of cuboid = √122
Diagonal of cuboid = 11.04
Length of straw = 11 inch (Approx.)
Answer:

Step-by-step explanation:
We write an expression:

Then we simplify:



Answer:
The person is adding the numbers in the tenth place and carrying the leftover ten over onto the one's place.
Step-by-step explanation:
Answer:
the third one is the answer