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Finger [1]
3 years ago
9

Jessica increases the temperature of a block of ice by 20º. Which integer represents the amount by which Jessica must change the

temperature for the block of ice to return to its starting temperature? A. –40 B. –20 C. 20 D. 40
Mathematics
2 answers:
ivolga24 [154]3 years ago
5 0

Answer:

b

Step-by-step explanation:

horrorfan [7]3 years ago
4 0

Answer:

B. -20

Step-by-step explanation:

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NISA [10]

Answer:

40.2

Step-by-step explanation:

7 0
3 years ago
ASAP PLEASE <3A rectangular garden has length and width as given by the expressions below. Length: 4 − 7(3x + 4y) Width: 3x(−
creativ13 [48]

Answer:

  • 8 - 42x - 56y - 12xy

Step-by-step explanation:

<u>Given sides of a rectangle</u>

  • Length: l =4 − 7(3x + 4y)
  • Width: w = 3x(−2y)

<u>Perimeter of rectangle</u>

  • P = 2(l + w)

<u>Using the given values</u>

  • P = 2( 4- 7(3x + 4y) + 3x(-2y)) =
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4 0
3 years ago
There are 63 female performers in a dance recital. the ratio of men to women is 5:9. how many men are in the dance recital?
valentinak56 [21]
In d ratio 5:9 which equals 5+9=14
the total female performers is 63
For men = 5/14*63=5/2*9
=45/2 =22.5
The men would be about 22.5 in the dance recital
5 0
2 years ago
What is 1 hundredth + 3 tenths=
musickatia [10]
Answer is 0.31. Hope this helps.
6 0
3 years ago
The discriminant finds the
mafiozo [28]

Answer: The discriminant is the part of the quadratic formula underneath the square root symbol: b²-4ac. The discriminant tells us whether there are two solutions, one solution, or no solutions.

4 0
2 years ago
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