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docker41 [41]
3 years ago
9

If y = 2x + 1, what is y when x = 3?

Mathematics
2 answers:
ivann1987 [24]3 years ago
5 0

Answer:

x=3

y=2x+1

y=2(3)+1

y=6+1

y=7

docker41 [41]3 years ago
5 0

Answer:

7

Step-by-step explanation:

y=2x+1 x=3

y=2(3)+1

y=6+1

y=7

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Ten percent of number equals 40 what is the number
Masteriza [31]
400Let x = the number 10% of x = 400.10 x = 400.10x/0.10 = 40/0.10x = 400 check:10% of 400 = 400.10 * 400 = 4040=40
7 0
4 years ago
Mason has lunch at a restaurant and the cost of his meal is $30. Mason
alekssr [168]

Answer:

Step-by-step explanation:

30*20%= 6 so $6.00 tip

Total with tip is $36.00

3 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP
vovikov84 [41]
Surface area = 4πr²
⇒ 400 = 4 * 3.14 * r²
⇒ r² = 400/12.56
⇒ r² = 31.84
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Hope it helps!
8 0
3 years ago
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frozen [14]

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Step-by-step explanation:

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B2%7D%20%3D%20%5Cfrac%7Bx%20-%204%7D%7B3%7D" id="TexFormula1" title="\frac{5}{
valentina_108 [34]

Step-by-step explanation:

\frac{5}{2}  =  \frac{x - 4}{3}

3 \times \frac{5}{2}  =  \frac{x - 4}{3}

\frac{3}{1}  \times  \frac{5}{2}  =  \frac{x - 4}{3}

cross multiplication

\frac{6 \times 5}{2}  =  \frac{x - 4}{3}

15 =  \frac{x - 4}{3}

15 \times 3 = x - 4

45 + 4 = x

49 = x

4 0
3 years ago
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