Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown".
Step-by-step explanation:
In x + 2 = 7, x is a variable, but we can work out its value if we try:)
Answer:
2, 19, -3
Step-by-step explanation:
Answer:
Step-by-step explanation:
Use consistent units. The length of the roller is 2.8 m. The diameter is 168 cm = 1.68 m
Circumference of roller = 1.68π m
Contact area of roller = 1.68π × 2.8 = 4.704π m²
Each rotation levels 4.704π m² of the playground.
Area of playground = 750 rotations × (4.704π m²)/rotation
= 3528π m²
≈ 11,084 m²
Answer:The larger is 28, the smaller is 9.
Step-by-step explanation:
n = the smaller
3n + 1 = the larger
n + (3n + 1) = 37
4n + 1 = 37
4n = 36
n = 9
3n + 1 = 3(9) + 1 = 28
The larger is 28, the smaller is 9.
mark brainliest please
Answer:
-$2,419.69
Step-by-step explanation:
Kate gets a paycheck twice per month.
However, $345.67 is deducted for taxes.
Kate has been paid 7 paychecks.
345.67 x -7= -2,419.69
$2,419.69 has been deducted, so that should be negative.
Answer:
-$2,419.69
