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PolarNik [594]
3 years ago
8

Hep plz plz plz plz desperate help

Mathematics
1 answer:
Vikki [24]3 years ago
5 0

Answer:

The equation is: 120 - 4x = 92. There are 7  incorrect answers.

Step-by-step explanation:

You might be interested in
25 points
elixir [45]
C. 4x + y = 21

4(3) + 9 = 21
12 + 9 = 21
21 = 21
8 0
3 years ago
Read 2 more answers
At the beginning of an experiment, the temperature of a solution was 48°C. During a 6-hour
ExtremeBDS [4]

9514 1404 393

Answer:

  • -2.2(6) +1.8(4) . . . temperature change
  • 42 °C

Step-by-step explanation:

At the end of the first 6 hours, the temperature change was ...

  (-2.2 K/h)(6 h) = -13.2 K

The change in the next 4 hours was ...

  (1.8 K/h)(4 h) = 7.2 K

Then the total change over the 10-hour period was ...

  (-2.2)(6) +(1.8)(4) . . . . . expression for temperature change

This evaluates to -13.2 +7.2 = -6.

__

The final temperature is the sum of the initial temperature and the temperature change:

  final temperature = 48 °C -6 °C = 42 °C

_____

<em>Additional comment</em>

When temperature is measured on the Celsius scale, a change of 1 degree is called a kelvin (K).

8 0
3 years ago
People use water to​ cook, clean, and drink every day. An estimate of 33.9​% of the water used each day is for cooking. If a fam
Lady_Fox [76]

Answer:

23 gallons of water

Step-by-step explanation:

People use water to​ cook, clean, and drink every day. An estimate of 33.9​% of the water used each day is for cooking. If a family uses 67.8 gallons of water a day for cooking​, how many gallons do they use every​ day?

This is calculated as:

33.9 % × 67.8 gallons of water

= 0.339 × 67.8 gallons of water

= 22.9842 gallons of water

Approximately = 23 gallons of water

Therefore, 23 gallons of water are used everyday for cooking

5 0
2 years ago
A shirt regularly priced at $36.00 was on sale for 25% off.
VLD [36.1K]

Answer:

C

Step-by-step explanation:

find out the 35% OF 36.00

36x35%=9

36-9=27

3 0
3 years ago
81,27,9,__,__,__,__ fill in the blanks
Sever21 [200]
3, 1, 0.3333, 0.111111
I think
5 0
2 years ago
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