The answer to your question is D.
Question-
A team math contest has $11$ teams of $6$ students each. Before the contest begins, every student high-fives every other student who is not on their team. How many high-fives take place in all?
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Define jam and bread mix
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Let the number of jar of jam be x
Let the number of packages of bread mix be y
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Form equations and solve
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x + y = 8 --------------------- (1)
6x + 5y = 45 ---------------- (2)
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Rewrite equation to make x the subject
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x+ y = 8
x = 8 - y ----------------------------(1a)
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Substitute (1a) into (2)
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6(8 - y) + 5y = 45
48 - 6y + 5y = 45
y = 48 - 45
y = 3
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Substitute y = 3 into (1) to find x
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x + 3 = 8
x = 8 - 3
x = 5
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Find jam and bread mix
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Jars of Jam = x = 5
Packages of bread mix = y = 3
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Answer: Jam = 5 ; bread mix = 3
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Answer:
-6, -8/7, 7/8, 7.5
Step-by-step explanation:
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13 i beleive good luck sorry if it not right:(
