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Xelga [282]
3 years ago
13

You have $78 in your savings account. You are buying a computer and the minimum down payment you can make is $120. Write and sol

ve an inequality to represent the amount of money you need to reach or exceed the minimum down payment for the computer
Mathematics
1 answer:
Alex Ar [27]3 years ago
3 0

Answer:

x >= 42$

Step-by-step explanation:

78$ + x >= 120$

78$ + x >= 120$ /-78$

x >= 42$


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at a particular school 50% of students travel by bus. if this represents 600 children how many children attend the school
hichkok12 [17]

Answer:

1200 students at the school

Step-by-step explanation:

Let x be the total number of students at the school

50% ride the bus

600 students ride the bus

x*50% = 600

Changing to decimal form

.50x = 600

Divide each side by .5

.50x/.5 = 600/.5

x =1200

1200 students at the school

4 0
3 years ago
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Lelechka [254]

Answer:

5,-1,-7

Step-by-step explanation:

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Ab over 2 equal 2a minus 1,express a in terms of b
sasho [114]

\frac{ab}{2} = 2a - 1

2(\frac{ab}{2}) = 2(2a - 1) <em>multiplied both sides by 2 </em>

ab = 4a - 2 <em>distributed the 2 on the right side</em>

ab - 4a = -2 <em>subtracted 4a from both sides</em>

a(b - 4) = -2 factored out "a" from the left side

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Answer: a = \frac{-2}{b - 4}

6 0
2 years ago
What is the missing numerator of 4/9= ?/81
yKpoI14uk [10]
To solve this question, first cross multiply
Let ? = x

4/9 = x/81

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Simplify.

81 x 4 = 324

324 = 9x

Isolate the x, divide 9 from both sides

324/9 = 9x/9

x = 324/9

x = 36


4/9 = 36/81

36 is your answer

hope this helps!
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