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likoan [24]
3 years ago
9

Plz help and explain

Mathematics
2 answers:
Rashid [163]3 years ago
6 0

Answer: D

Step-by-step explanation: the answer is d because it can be simplified more

agasfer [191]3 years ago
6 0
It want you to say which one is correct. 3/2 is more than one and therefore more than 40/65

2/9 you can change to 4/18 which is less than 5/18.

17/51 is less than one and 12/8 is more than one.

for the correct answer (D) you can change 3/2 to 90/60
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A recipe for oatmeal raisin cookies call for 1 2/3 cups of flour to make 4 dozen cookies. How many cups of flour are needed to m
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It would take about 2 1/2 to make six dozens
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3 years ago
In the following picture, (QS) ̅ and (PR) ̅ are chords of the circle. Find the length of QS. (Remember to show formulas/equation
Inessa [10]
<h3>Answer: QS is 37 units long</h3>

=========================================

Explanation:

PN = 24 and NR = 14 are pieces of the chord PR. The two pieces multiply to some value. At the same time, the other two pieces QN = 21 and NS = 2x-4 also multiply to that same value. In short, the chord pieces multiply to the same number. This is known as the intersecting chord theorem.

PN*NR = QN*NS

24*14 = 21*(2x-4)

336 = 42x-84

336+84 = 42x-84+84 .... add 84 to both sides

420 = 42x

42x = 420

42x/42 = 420/42 ...... divide both sides by 42

x = 10

We know that x = 10 so we can use it to find the length of NS

NS = 2x-4

NS = 2*10-4

NS = 20-4

NS = 16

Therefore,

QS = QN + NS

QS = 21 + 16

QS = 37

--------

note: as a check,

PN*NR = QN*NS

24*14 = 21*16

336 = 336

we get a true equation, so we have the proper values

4 0
3 years ago
Least common multiple of 168 and 76
yuradex [85]

Answer:

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4 0
2 years ago
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Answer:

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