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m_a_m_a [10]
3 years ago
15

I need help please i need step by step help

Mathematics
2 answers:
lana66690 [7]3 years ago
7 0
The first one is 3x + 7x = 3
10x = 3
The second one is x^2-2x + 15x = 3
x^2 + 13x = 3
melomori [17]3 years ago
3 0
Mmmmbrntnrjneuneunre unenriched
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A cube with side length 4 centimeters is 25% full of sand. What is the volume of sand
earnstyle [38]
First, find the volume of the whole cube
Volume of cube = 4 x 4 x 4 = 64 cm³

The volume of sand is 25% of the volume of cube so,
Volume of sand = 25/100 x 64 = 16 cm³
4 0
3 years ago
Jacob and Ayden work at a dry cleaners ironing shirts. Jacob can iron 25 shirts per hour, Ayden can iron 35 shirts per hour. Ayd
Anestetic [448]

Answer:

jacob ironed 100 shirts

ayden ironed 280 shirts

Step-by-step explanation:

jacob ironed for 4 hours and ayden for 8 hours

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3 years ago
three apples and four bananas cost $4.85 . three apples and ten bananas cost $8.75.Find the cost of an apple.
konstantin123 [22]
8.75-4.85= 3.90= cost of 6 bananas
3.9/6=0.65= cost of one banana
.65*4=2.60= cost of 4 bananas
4.85-2.60= 2.25= cost of 3 apples
2.25/3=.75= cost of an apple
5 0
3 years ago
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The manager of a warehouse would like to know how many errors are made when a product’s serial number is read by a bar-code read
maw [93]
<span>In order to determine the total number of errors that were made by the bar code scanner, we first have to calculate how many total scans were made. Because there were six items scanned 1,000 times each, there were 6,000 total scans made. Next, we have to add up the total number of errors made by each item (36+14+21+39+11+2). As a result, there were a total of 123 errors made during the 6,000 scans.</span>
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How much does it cost to fix an odometer?
lorasvet [3.4K]
I believe you cant fix one rather you need a new one. It runs about 300 plus labor

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