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uysha [10]
3 years ago
10

Markus scored 85, 92, 82, and 94 on the first four tests of the semester. His teacher has not yet told him his score on his fift

h test, but did tell him that his score on the fifth test is five points lower than the average (arithmetic mean) of all five tests. Which equation could Markus use to determine the score of the fifth test, x?
Mathematics
2 answers:
algol133 years ago
5 0
It’s x=83 I believe
I am Lyosha [343]3 years ago
5 0

Answer:

5(x + 5) = 353 + x


Step-by-step explanation:


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What is the solution of this equation -12x-7=53
umka21 [38]

Answer:

<em>x </em>= -5

Step-by-step explanation:

You have to work backwards.

53 + 7 = 60

60 ÷ 12 = 5

Add the negative »»» -5

8 0
2 years ago
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The mass of earth is 5.9 x 10^24. The mass of Pluto is 13,000,000,000,000,000,000,000 kg. Compared to Pluto, how much greater is
nadya68 [22]
5.9 × 10^24 = 5,900,000,000,000,000,000,000,000 minus
13,000,000,000,000,000,000,000 equals
5,887,000,000,000,000,000,000,000 kg
which is the amount greater that Earth's mass is. you could write this problem as
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7 0
4 years ago
Can anybody help me with this this is all I need for today and it is for a grade. PLEASE HELP
zzz [600]
Not proportional, because the 185 divided by three isn’t 65. However, the others were 65 so it wasn’t consistent.

The constant would be 65.
4 0
3 years ago
Please help me with this it’s is urgent
Irina-Kira [14]

Answer:

the nominator could be any number here

4 0
2 years ago
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PLEASE HELP IT'S DUE IN LIKE 20 MINUTES
Alexeev081 [22]

9514 1404 393

Answer:

  • x +3x = 180
  • x = 45 . . . . . . . choice C
  • 3x = 135 . . . . . choice F

Step-by-step explanation:

Let x represent the measure of the original angle in degrees. Three times its measure is 3x. That will be the supplement if the sum of the two angles is 180°.

  x + 3x = 180 . . . . . . . . . equation for finding the angle

  x = 180/4 = 45 . . . . . .  divide both sides by 4

  3x = 3(45) = 135

The first angle is 45°. The second angle is 135°.

4 0
3 years ago
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