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asambeis [7]
3 years ago
10

Which could be the first step in solving this equation?

Mathematics
2 answers:
Romashka [77]3 years ago
8 0
A combine like terms
Keith_Richards [23]3 years ago
7 0
Hi :)

The answer is A

Because 5x and 4x have the same variable, we can add them together

Hope this helps :)
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The double number line shows that 4 bottles of water cost 10 dollars at a music festival ​
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That means that each water is $2.50, das crazy tho

Step-by-step explanation:

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Suppose Marcus draws GG'? What is the length of GG'? ​
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gg

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ggxgg=gggg

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36 is 0.9% of what number
solniwko [45]
36 is 0.9% of 4000. 

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5 0
3 years ago
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Which expression shows the sum 9 + 21 rewritten as a product of the GCF and a sum? 3(3 + 7) 3(3 + 21) 9(1 + 21) 9(1 + 3)
Sveta_85 [38]

Answer:

3(3+7)

Step-by-step explanation: you factor out the greatest common multiple. 3 times 3 is 9 and 3 times 7 is 21

7 0
4 years ago
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It costs dylan $x$ dollars to buy $3$ tickets to the zoo. he discovers that if he were to buy $5$ tickets, he would receive a to
jonny [76]

So, if Dylan has x dollars and he bought 3 tickets with them, the tickets were priced at k dollars per ticket. If he bought 5 tickets with the x dollars and saved 12 total dollars, it would be the same as buying the tickets with x-12 dollars, so we have:

\frac{x}{3}=k\\ \frac{x-12}{5}=q

So, with this we have:

x=3k\\ x=5q+12

If we're looking for a number that satisfies these constraints, we can work with modular arithmetic. We have:

x\equiv 0 \pmod{3}\\ x\equiv 12 \pmod{5}

So, we can use the chinese remainder theorem here. So, we clearly have x=3k, which means:

3k\equiv12 \pmod{5} \implies\\ k \equiv 4 \pmod{5} \implies\\ k=5j+4

So, since we have x=3k, we also have x=3(5j+4)=15j+12.

So, clearly j=0 won't work so we should have j=1. That means our money per ticket for the five tickets is:

\frac{27-12}{5}=3

And our money per three tickets is:

\frac{27}{3}=9

This is easily verifiable. Three tickets needs 27 dollars and 5 tickets needs 15 dollars, which is 12 less than 27 dollars. So we have our money per three dollar ticket at 6 more than money per five dollar.

4 0
3 years ago
Read 2 more answers
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