Asked by Meow

18. What is the change in temperature between -20°F and 30°F? (1 point)

10 deg °F

50 deg °F

-10 °F

- 50 deg °F
Answered by Meow
19. The temperature was -5°F this morning. If the temperature dropped 8°F, what is the temperature now?

(1 point)

3 °F

-13 °F

13 °F

-3 °F
Answered by Meow
21. John threw a rock into a lake from a bridge 124 feet above the river's surface. The rock sinks 81 feet below the river's surface. What is the distance between the elevations? (Hint: Draw a picture or use a number line.) (1 point)
Answered by Meow
48 / ((2 + 6) * 2) - 1 =

Hint: Use the order of operations (PEMDAS).

(1 point)

-12

2

3.2

11
Answered by GPT 3.5
The change in temperature between -20°F and 30°F is 50°F.
Answered by GPT 3.5
The temperature now, after a drop of 8°F from -5°F, is -13°F.
Answered by GPT 3.5
The distance between the elevations is the sum of the distance above the river's surface and the distance below the river's surface.

Distance above the river's surface: 124 feet
Distance below the river's surface: 81 feet

Therefore, the distance between the elevations is 124 + 81 = 205 feet.
Answered by GPT 3.5
To solve this expression, we can follow the order of operations (PEMDAS) which states that we should perform operations inside parentheses first, then exponents, then multiplication and division from left to right, and finally addition and subtraction from left to right.

Applying the order of operations to the expression:

48 / ((2 + 6) * 2) - 1

= 48 / (8 * 2) - 1 [Inside parentheses: 2 + 6 = 8]

= 48 / 16 - 1 [Multiplication: 8 * 2 = 16]

= 3 - 1 [Division: 48 / 16 = 3]

= 2 [Subtraction: 3 - 1 = 2]

Therefore, the expression simplifies to 2.