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scoray [572]
3 years ago
13

Christy earned $41.25 for selling 3 birdhouses at a craft market. The equation y=13.75x can be used to represent this situation.

What is the constant of proportionality? Express your answer in decimal form.
Mathematics
1 answer:
kobusy [5.1K]3 years ago
6 0
K=y/x

k=68.75/5 (you can pick any number by multiplying x by 13.75)

k=13.75

hope this helps
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Help me with this question!
Damm [24]

Answer:

it will cost him £2.38

Step-by-step explanation:

bc you first multiply 4.25kg with £1.40 and that equals to 5.95

then you take 5.95 and devide it with 2.5 kg then that equals to £2.38.

I hope that this helped you.

8 0
3 years ago
A washer and a dryer cost $857 combined. The washer costs $93 less than the dryer. What is the cost of the dryer?
Lelechka [254]

Answer:

Dryer cost $475;  Washer cost $382

Step-by-step explanation:

For this problem, we will simply set up a system of equations to find the value of each the washer (variable x) and the dryer (variable y).

We are given the washer and dryer cost $857 together.

x + y = 857

We are also given that the washer cost $93 less than the dryer.

x = y - 93

So to find the cost of the dryer, we simply need to find the value of y.

x + y = 857

x = y - 93

( y - 93 ) + y = 857

2y - 93 = 857

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y = 475

So now we have the value of the dry to be $475.  We can check this by simply plugging in the value and see if it makes sense.

x + y = 857

x + 475 = 857

x = 382

And check this value:

x = y - 93

382 ?= 475 - 93

382 == 382

Therefore, we have found the values of both the washer and the dryer.

Cheers.

6 0
4 years ago
Given: ∠ A = ∠ C, E is the midpoint of AC<br> Prove: △AEB △CED
bija089 [108]

Answer:

Step-by-step explanation:

3.AE = CE                   E is the midpoint of AC

4. ∠AEB = ∠CED        Vertically opposite angles are equal

5. ΔAEB = ΔCED       ASA congruence

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Answer:

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Step-by-step explanation:

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