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Lemur [1.5K]
2 years ago
5

3.4a=57.8 What is the value of a in this

Mathematics
1 answer:
lakkis [162]2 years ago
7 0

Answer:

a = 17

Step-by-step explanation:

3.4a=57.8

/3.4    /3.4 (Divide both sides by 3.4)

a = 17

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Which of the following expressions could give the total amount of a $45 restaurant bill with a 15% tip added on?
vazorg [7]

Answer:

$51.75

Step-by-step explanation:

Given

Total amount of bill, x= $45

Tip Percent=15%

⇒15% on $45 is to be paid extra as tip, other than the already paying $45

⇒Tip=\frac{15}{100}\times x=\frac{15}{100}  \times45=6.75

So <em>total amount to be paid</em>= Bill+ tip

= x + tip=x+\frac{15}{100} x=1.15x=1.15\times45

=$51.75

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What is the midpoint of a segment whose endpoints are (3, 7) and (7, 3)
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3 years ago
 solve for x x/9−5=5<br><br>x=​
gregori [183]

Answer:

<u>x=90</u>

Step-by-step explanation:

<em />

<em>Let's solve your equation step-by-step.</em>

x/9−5=5

<em>Step 1: Simplify both sides of the equation.</em>

x/9−5=5

1/9x+−5=5

1/9x−5=5

<em>Step 2: Add 5 to both sides.</em>

1/9x−5+5=5+5

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<em>Step 3: Multiply both sides by 9.</em>

9*(1/9x)=(9)*(10)

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Answer:

<u>x=90</u>

3 0
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