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Studentka2010 [4]
3 years ago
11

Evaluate y^2+7y-8 when y=-3

Mathematics
1 answer:
inessss [21]3 years ago
6 0

Answer:

the answer if the first picture

Step-by-step explanation:

the second one is the explanation

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Machine A pops 12.75 ounces of popcorn in 3 minutes. Machine B pops 18 ounces of popcorn in 4 minutes. If each machine pops popc
Harrizon [31]

Answer: Yes, there are enough popcorn for eight 9- ounce bags.

Step-by-step explanation:

Since we have given that

From Machine A,

Amount of popcorn  in 3 minutes = 12.75

Amount of popcorn in 1 minute is given by

\frac{12.75}{3}=4.25\text{ ounces}

Amount of popcorn in 10 minutes is given by

4.25\times 10=42.5\text{ ounces }

From Machine B,

Amount of popcorn  in 4 minutes = 18 ounces

Amount of popcorn in 1 minute is given by

\frac{18}{4}=4.5\text{ ounces}

Amount of popcorn in 10 minutes is given by

4.5\times 10=45\text{ ounces }

Total amount of popcorn is given by

42.5+45=87.5\text{ ounces}

Now, there are eight 9-ounce bags means 72 ounces

Since 87.5 ounces is greater than 72 ounces .

So, there are enough for eight 9-ounce bags.

8 0
3 years ago
Read 2 more answers
Solve -3x + 2y = 5 for y
Anna11 [10]

Answer:

<u>y=4</u>

Step-by-step explanation:

5 0
3 years ago
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HELP ME PLZ !!!!!!!!
nekit [7.7K]

Answer:

LM=JM

Step-by-step explanation:

  • If Jk=Lk Maybe that K was not 90 This means that the triangles are not congruent
  • if it was K = 90 maybe Jk ≠ Lk and that means the two triangles are not congruent
  • if LM = GM و MK = MK It means that the two triangles are congruent
8 0
3 years ago
-4+x= -11 please answer it
Slav-nsk [51]

Answer:

x=-7

Step-by-step explanation:

add 4 to both sides. leaving you with x=-7

8 0
3 years ago
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Math<br><br> 2(8x -4) = 32<br><br> show work
Umnica [9.8K]
<span>2(8x - 4) = 32   distribute through parenthesis
16x - 8 =32  add 8 on both sides to isolate x
16x = 40   divide by 16 on both sides to isolate x
x= 40/16   simplify, Divide 40 by 16 
x = 2.5  this is your final answer, I hope it helps!</span>
4 0
3 years ago
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