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Ivanshal [37]
3 years ago
15

Using a scale, Jamal found the mass of a rock to be 3000 grams. Kemen used a different scale and recorded a different mass for t

he same rock. The percent error for Kemen's measurement was 5%. Which measurement could be the mass that Kemen recorded? A) 15000 g B) 2850 g C) 600 g D) 150 g.
Mathematics
1 answer:
NNADVOKAT [17]3 years ago
3 0
It's answer B) 2850 because
3000:100x5=150           3000-150=2850
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9514 1404 393

Answer:

  20 = 2 + (7 -4) × 6

Step-by-step explanation:

The Order of Operations requires the parentheses be evaluated first, then the multiplication performed. Finally, the addition is performed.

If each of the blanks is filled with a single digit, the result of the multiplication must be a composite number greater than 10. Those are 12, 14, 15, 16, 18, 20. For the expression shown above, we have chosen to make the product be 18. That means the first blank is filled with 2 and the remaining blanks must evaluate to one of the products 2×9 or 3×6.

We have chosen 6 for the last blank, so the two blanks in parentheses must have a difference of 3. The digits 2 and 6 cannot be used, leaving possible choices as (3-0), (4-1), (7-4), (8-5).

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3 0
3 years ago
Help please I will give brainliest
mestny [16]
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3 years ago
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What are prime numbers ? And a list of examples ?
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7 0
3 years ago
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6 0
3 years ago
How do you do this?????????????
uranmaximum [27]
Hey there!

To find the value of an angle in a triangle, you need to add the 3 angles. You have angles with 55 degrees, 65 degrees, and x degrees. Put this into an equation. The equation would be 55+65+x=180. Simplify to get 120+x=180. You need to isolate x, so subtract 120 from both sides to get x=60. So the value of x is 60 degrees.

I hope this helps!
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3 years ago
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