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snow_tiger [21]
3 years ago
15

Dana can jump a rope 264 time in 4 minutes. how many jumps make in one minute

Mathematics
2 answers:
slava [35]3 years ago
4 0
To find how many in 1 minute you will need to divide 264 by 4

66 jumps in 1 minute

andreev551 [17]3 years ago
3 0
66 in one min

because you have to do this -->   264÷ 4

do the butterfly strategy
                                                      
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Please help....There are 42 boys and girls participating in an essay-writing competition. Of the competitors, 21 are in seventh
almond37 [142]
The probability of an 8th grader winning is : 14/42 which reduces to 1/3

the simulation would be : # 3 <====

because u will have 6 equal sections on ur spinner...with each section representing 7 people
one section representing 9th graders...so their is 7 of them
2 sections representing 8th graders....so their is 7 * 2 = 14 of them
and 3 sections representing 7th graders....7 * 3 = 21 of them

7 0
3 years ago
Read 2 more answers
Help plz no wrong answers plz help me ASAP thanks!
wariber [46]

Answer:

480

Step-by-step explanation:

The probability she will roll 2 odd numbers is 12/50  (the number of odd rolls over the total).  This simplifies to 6/25

Multiply the probability times the total number of rolls to get a good estimate of the number of rolls that till be odd odd

6/25 * 2000 =480

5 0
3 years ago
A 10-ft vertical post casts a 14-inch shadow at the same time a nearby cell phone tower cast a 119-ft shadow. How tall is the ce
Yakvenalex [24]

Answer:

The cellphone towers height is 1020 ft.

Step-by-step explanation:

This question is solved using proportions, by a rule of three.

A 10-ft post casts a 14-inch shadow.

Each feet has 12 inches, which means that a post with 10 feet will cast a 14/12 = 1.167 ft shadow. How tall is the cell-phone tower with a 119-feet shadow?

10 feet post - 1.167 ft shadow

x feet tower - 119 feet shadow

Applying cross multiplication:

1.167x = 10*119

x = \frac{1190}{1.167}

x = 1020

The cellphone towers height is 1020 ft.

8 0
3 years ago
3. Kanyla makes and
Triss [41]

Answer:

$23

Step-by-step explanation:

1 phone case = $12

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4 phone cases - Table = 48 - 25 = $23

4 0
3 years ago
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​ Quadrilateral ABCD ​ is inscribed in this circle.
Anna [14]
A quadrilateral, has 4 sides and its internal angles sum, add up to 360, now... you have 3 angles give.. .but we don't have C

so.. C is the difference of all the three angles from 360 or  \bf \measuredangle C=360-x-(2x+1)-148\implies \measuredangle C=360-x-2x-1-148   whatever that is, now, you'll get some value in x-terms

so.... now once we know what C is

you can if you want, do a search in google for "inscribed quadrilateral conjecture",  I can do a quick proof if you need one

but in short, for a quadrilateral inscribed in a circle, each pair of opposites angles are "supplementary angles", namely they add up to 180°

so.. what the dickens does all that mean?   well D+B=180 and A+C = 180

now. we know what A is, 2x+1
and by now, you'd know what C is from  360-x-2x-1-148

so... add them together then   and

\bf \begin{array}{cccclllll}&#10;A&+&C&=&180\\&#10;\uparrow &&\uparrow \\&#10;(2x+1)&+&(360-x-2x-1-148)&=&180&#10;\end{array}

solve for "x"


6 0
3 years ago
Read 2 more answers
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