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agasfer [191]
3 years ago
9

For art class, Mrs. Stone asked her 6th grade students to draw a zoo. She wanted the class to draw a zoo with a ratio of 5 trees

for every 7 birds.
Mary drew 16 trees for every 16 birds.
Charlie drew 13 trees for every 18 birds.
Phil drew 14 trees for every 19 birds.
Lucy drew 10 trees for every 14 birds.

Which student drew the ratio correctly?
A.
Phil
B.
Lucy
C.
Mary
D.
Charlie
Mathematics
1 answer:
inysia [295]3 years ago
4 0
C Lucy is the answer
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Given that these simultaneous equations
Tatiana [17]

The value of k is(3\sqrt{ 10})/2

<h3>How to solve the simultaneous equation?</h3>

Given:

x-y=k.............(eq i)

2x²+y²-15..............(eq ii)

We would make y the subject formula in eq ii

2x²+y²-15= 0

2x² + y²= 15

y²= 15-2x²

y= \sqrt{15-2x^2}...........(eq iii)

Substitute the value of y into eq i

x-(\sqrt{15-2x^2}= k

x- (\sqrt{15} - 2x= k

k= (3\sqrt{ 10})/2

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brainly.com/question/16863577

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tank a has 100 gallons of water and is being filled at a rate of 2 gallons per hour. tank b has 140 gallons and is being drained
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Answer:

5 hours must pass

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A city manage must predict the population of the city between the years 2000
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Answer:

the answer to predict the city's population is 2050

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Answer is on the attachment. Brainlist pls.

Step-by-step explanation:

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3 years ago
PLEASE ANSWER ASAP WORTH 100 points get it right please
Trava [24]

Answer:

See below.

Step-by-step explanation:

Part A:

triangle QPR and triangle PSR are similar

Part B:

Triangle QPR is a right triangle with right angle QPR.

Triangle SPR is a right triangle with right angle PSR.

Angle QPR of triangle QPR corresponds to and is congruent to angle PSR of triangle PSR.

Angle R of triangle QSR corresponds to and is congruent to angle R of triangle PSR.

The similar triangles by AA Similarity are

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