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GalinKa [24]
2 years ago
14

There are y cupcakes in the class. It is two more than 4 times the number of donuts (X). How many donuts are there in the class?

Mathematics
1 answer:
Snezhnost [94]2 years ago
6 0

Answer:

  (c)  x = (y -2)/4

Step-by-step explanation:

The given relationship between x and y can be solved for x.

__

<h3>given relation</h3>

There are 2 more cupcakes (y) than 4 times the number of donuts (x):

  y = 2 +4x

<h3>solve for x</h3>

  y -2 = 4x . . . . . subtract 2

  x = (y -2)/4 . . . . divide by the coefficient of x . . . . matches 3rd choice

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A shelter in the city house birds and dogs . There are 25% more dogs then birds. If there are 50 birds how many dogs are there?
AfilCa [17]

Answer:

They have 83 dogs and 50 birds.

There are 133 animals in total in the shelter.

Step-by-step explanation:

So let's call the dogs D and the birds B.

D = 25% + B

What ever the amount of animals, the total for D must always be 25% more than B.

To get 100% of the animals, B must equal 37.5% and D must equal 62.5%.

The way I worked this out was:

100% - 25%= 75%

75% divided by 2= 37.5%

37.5% + 25%= 62.5%

And just to check

37.5% + 62.5% = 100%

So to work out 100%:

37.5% = 50

divide both by 37.5 to get 1%

1% = 1.333333

time both by 62.5 to get 62.5%

62.5% = 83.333313

We'll round that answer because I'm pretty sure they don't have a .333313th of a dog.

So D = 62.5% = 83

They have 83 dogs and 50 birds.

Phew! That was the hard part. Now onto something wayyy easier.

To get the total number of animals in the shelter we just do 83 + 50, which is 133.

There are 133 animals in total in the shelter.

Hope this helps you :)

7 0
3 years ago
I need help is it a, b, c, or d
Salsk061 [2.6K]
It’s B
23x+23
Just add
3 0
3 years ago
Which of the numbers below could be terms in the sequence an=7n +4?<br> 24<br> 46<br> 32<br> 36
mrs_skeptik [129]

Answer:

46

Step-by-step explanation:

46 - 4 = 42

42/7 = 6

7 0
3 years ago
How can you use rates to determine wheather a situation is a proportional relationship
svp [43]

<em>If the rate is a constant, the relationship is proportional.</em> (The rate is the constant of porportionality.)

_____

For two or more points on the function curve, divide the dependent variable value by the independent one. If you get the same result in every case, the relationship is porportional.

___

<em>Note</em>

For some non-proportional relationships, it is possible to find points on the graph that will pass the above test. If you suspect the relationship is actually not one of proportionality, try more points. Check also to make sure that (0, 0) is on the curve.

7 0
3 years ago
What is the slope-intercept equation<br> for the following line?<br> y=-x+
abruzzese [7]

Answer:

y=-1/2x-3

I hope this helps u :)

Step-by-step explanation:

5 0
3 years ago
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