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Tanzania [10]
3 years ago
12

The average of your first three test grades is 78. what grade must you get on your fourth and final test to make your average 80

?
Mathematics
1 answer:
Alex73 [517]3 years ago
7 0
You need to score 86
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3 years ago
For each mile Jason runs Megan runes 1/4 mile farther if Jason ran 6 miles how far did Magen run ?
fenix001 [56]
Let, Jason = J and M = Megan

M = J(1 + 1/4) 

So putting 6 where J is and solving:
<em>M = 6(1 + 1/4)
</em><em>M= 7.5</em>

When Jason runs 6 miles Megan runs 7.5
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4 0
3 years ago
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13. Higher Order Thinking Kyra has a rock collection. When she puts her rocks into 2 equal piles, there are no rocks left over.
NNADVOKAT [17]

she has 12 rockes in her collection. Hope this helps!


3 0
4 years ago
Andrea is selling candles as a fundraiser. she spent $50 on supplies for making the candles. she plans to sell the candles for $
Luda [366]
In order for Andrea to make profit, the value of the C in the given function must not be 0 or less than zero. So, let's find the value of x when C is zero.

C = 0 = 10x - 50
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Hence, the number of candles sold represented by x must be more than 5 (< 5). Therefore, the domain is (5,+∞). When the value of x is more than 5, the C or the range would be greater than 0. Thus, the range is (0,+∞).
8 0
3 years ago
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