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Margaret [11]
2 years ago
7

1. Chris takes 25 minutes to replace one car tyre.

Mathematics
1 answer:
vekshin12 years ago
3 0

Chris and Jim must replace a <em>total</em> quantity of 17 tyres.

<h3>What is the minimum number of tyres to be replaced?</h3>

In this problem we must use an inequality of the form f(x) ≥ a, where f(x) is the difference between the number of tyres replaced by Jim and the number of tyres replaced by Chris:

(25/20) · x - x ≥ 3

(5/20) · x ≥ 3

x ≥ 12

Then, the <em>minimum</em> number of tyres to be replaced is n = 15 + 12 = 17 tyres.  

To learn more on inequalities: brainly.com/question/20383699

#SPJ1

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sveticcg [70]
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3 0
3 years ago
Massa says that 540 ÷ 6 = 9. Is he right? Explain how you know using an equation.
Masteriza [31]

Both sides of the equation are not equal, therefore, Massa was wrong.

<h3>How to Evaluate an Equation?</h3>

For an equation to be correct, the values on both sides of the equation must be equal and balance.

Given the expression, 540 ÷ 6 = 9, 540 divided by 6 is 90. 90 is not equal to 9.

Thus, the value on the both sides are not balanced, therefore, Massa is incorrect.

Learn more about equations on:

brainly.com/question/25678139

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7 0
2 years ago
Can y'all help me please because I don't get it
pishuonlain [190]
Ok so here we go!
a steam and leaf plot is very simple to figure out
for example if a number was 6|4 it would equal 64
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which equals 27
5 0
3 years ago
Sally has a box that has 30 red balloons and 60 total balloons. What is the probability a randomly selected one is red?
Andreyy89
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6 0
4 years ago
I need help with his question
Doss [256]

Answer:

27-24i

Step-by-step explanation:

It is trust me:)

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