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yKpoI14uk [10]
2 years ago
13

in an 7th grade class with 80 people, seven tenths of the students wore shorts, if three sevenths of those students who wore sho

rts also wore tank tops, how many 7th graders wore shorts and tank tops
Mathematics
2 answers:
Trava [24]2 years ago
8 0

Answer:

56

Step-by-step explanation:

VladimirAG [237]2 years ago
5 0

Answer:

24

Step-by-step explanation:

\frac{7}{10}· 80 wore shorts; this equals 56

of the 56, 3/7 wore tank tops; 56 · \frac{3}{7} = 24

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Read 2 more answers
Bradly completed 0.8 of his homework and Max completed 8% of his homework. Who completed more of their homework? How do you know
Helga [31]

Answer:

Bradly finished more

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4 0
2 years ago
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A circle has a circumfernce of 6. It has an arc length of 1
fomenos

Answer:

The circumference formula for a circle is C=πd where C is the circumference, d is the diameter of the circle and π is a constant. If you plug in 6 for C and solve the equation for d like:

6= πd and then divide both sides of the equation by π you get that d = 1.90

To find the central angle of an arc you would use the equation S = rθ where S is the length of the arc, r is the radius of the circle, and θ is the measure of the angle which in this case is unknown. So with S = 1 and r = d/2 = 1.90/2 = 0.9549 you would have an equation that looks like this:

1 = 0.9549θ.  

If you divide both sides of the equation by 0.9549 you get θ = 1.047197 radians.  

The question asked for the angle measure in degrees so you would need to convert the angle measure to degrees by multiplying the degree measurement by 180/π

1.047197 x 180/π =  60°

8 0
3 years ago
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