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german
3 years ago
14

Please help me with 1-4

Mathematics
1 answer:
dsp733 years ago
8 0
For problem 1, it will be 25/100, which is equal to 25%
2) The relationship is that both, the bar model and the proportion, show that x is 1/4 of the actual amount. The bar graph is more a visual. However, in both cases, the x can be solved for to be 25%
3) The percent error for 23°C will be less since it is closer to 25°C, the actual amount. The percent error is greater for 5°C since it is farther for 25°C.
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X - y = 6
Dominik [7]

the system has no solution.

Option C is correct.

Step-by-step explanation:

We need to solve the system of equations by substitution

x - y = 6\,\,\,eq(1)\\x = y + 2\,\,\,eq(2)

Putting value of x from eq(2) into eq(1)

(y+2)-y=6\\y+2-y=6\\0+2=6\\0=6-2\\0\neq4

As as 0≠4is not true, we cannot find the value of y so the system has no solution.

Option C is correct.

Keywords: System of equations

Learn more about system of equations at:

  • brainly.com/question/7490805
  • brainly.com/question/9045597
  • brainly.com/question/13168205

#learnwithBrainly

4 0
3 years ago
Please helppppp!!!!!!!!
Drupady [299]

Answer:

128 cm^2

Step-by-step explanation:

The area of a trapezoid is given by

A = 1/2 (b1+b2) h

where b1 and b2 are the lengths of the bases and h is the height

A =1/2( 10+22) * 8

A = 1/2 (32)8

  = 128

7 0
2 years ago
Read 2 more answers
You bought 34 pound of dry ice for an experiment. When the experiment was over, you found that you had used only 13 of what you
MrRa [10]
If you only used 13% then you used 4.42 pounds of dry ice. 
3 0
3 years ago
$83 giraffe; 17% markup
zzz [600]

Answer:

Step-by-step explanation:

5 0
3 years ago
For every 5 chocolate cones sold, 7 vanilla cones are sold. On Monday, 70 chocolate cones were sold. How many cones were sold IN
FromTheMoon [43]

Answer: 168

Step-by-step explanation: 70/5=14. 14x7=98.  70+98=168.

5 0
3 years ago
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