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natka813 [3]
3 years ago
6

Andrew buys books and videos in a store. He uses the expression 4b + 8v to find the cost of what he is buying, where b is the nu

mber of books and v is the number of videos he buys. Use the expression to find the total cost of 3 books and 7 videos. Total cost =
Mathematics
1 answer:
7nadin3 [17]3 years ago
7 0

Answer:

68

Step-by-step explanation:

1) Plug In (when you plug in you replace the defined variable with the number given. usually you have to find the numbers to plug in but since they're already given to you you just plug them in.) 4(3) + 8(7)=T   T= total cost

2) Multiply 4*3=12 8*7=56

3) Add 12+56=68

4) <u>T=68</u>

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Find the greatest common factor of 10 and 125.
natulia [17]

Answer:

5

Step-by-step explanation:

10 = 2 * 5

125 = 5 * 5 * 5

Taking out the duplicates from the  2 lists :-  GCF = 5

5 0
3 years ago
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Alisiya [41]

Since you know the value of x, you can substitute/plug it into the equation to find the value of y:

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6 0
4 years ago
Which of the following mathematical symbols represents "the opposite of"?
asambeis [7]

Answer:

the minus sign

Step-by-step explanation:

In mathematics, the symbol for the additive opposite is the minus sign

The symbol for the multiplicative opposite is the inverse operation 1/x (I think)

So, yes, specific opposites have symbols, BUT...

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7 0
3 years ago
Read 2 more answers
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Andre45 [30]

Answer:

I think it should be 11/3

5 0
3 years ago
I need help on this asap please!
son4ous [18]

Answer:

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