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Olin [163]
3 years ago
6

How do you this? I need help for this.

Mathematics
1 answer:
Genrish500 [490]3 years ago
7 0
X=-3
-4x=-2x+6
Add -2x to -4x
-2x=6
Divide -2x on both sides
x=-3
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The radius of a wheel is 21m.how much distance will it covers when it rotates 5 times?​
mrs_skeptik [129]

Answer:

Distance = 660 meters

Step-by-step explanation:

Given the following data;

Radius, r = 21 m

Number of revolutions = 5 times

To find the distance covered;

The distance covered in one revolution is given by the circumference of a circle.

Mathematically, circumfeence of a circle is equal to;

C = 2πr

Substituting into the formula, we have;

C = 2 * 22/7 * 21

C = 44 * 3

C = 132 meters

Next, we find the distance covered;

Distance = Circumference * Number of revolutions

Distance = 132 * 5

Distance = 660 meters

8 0
3 years ago
2280÷60 how to work it out
Arturiano [62]
You could do 228/6 = 38 

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4 0
3 years ago
What equals to 20 and 84
Charra [1.4K]
Two is equivalent to twenty and 84
4 0
3 years ago
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Chet started to slow his eating speed down later in the evening. He was
ozzi

Answer:

The unit rate is:

  • 1/8 turkey/per hour.

Step-by-step explanation:

As Chet was eating 1/4 of a turkey every 2 hours.

This tells us that every two hours, Chet will eat  175  1/4 of a turkey.

  • Unit rate basically means 'how much of something per 1 unit of something else'.

A unit rate is a rate with a denominator of  1  unit.

This means, in 1 hour, Chet will eat half of what he eats every 2 hours.

so Chet will eat \frac{\frac{1}{4}}{2}=\frac{1}{8} of a turkey in 1 hour.

i.e.

\frac{\frac{1}{4}}{2}=\frac{1}{8}

Therefore, the unit rate is:

  • 1/8 turkey/per hour.

6 0
3 years ago
What is the definition of fractions
Serjik [45]
A numerical quality that is not a whole number. 
5 0
3 years ago
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