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Anuta_ua [19.1K]
4 years ago
14

In preperation for an easter egg hunt, 4 blue eggs are filled for every 7 green. How many green eggs will be filled if 100 blue

eggs were filled

Mathematics
1 answer:
ivann1987 [24]4 years ago
8 0

Answer:

1. Typed question: 175 green eggs

2. Attached: 22 tables

Step-by-step explanation:

For the question you typed down, it is a ratio and proportion problem. You need to solve for the ratio proportional to the first ratio given.

4 blue eggs are filled for every 7 green. This means that the ratio between blue eggs and green eggs is 4:7.

Now yo need to figure out a ratio proportional to 4:7 if 100 blue eggs were filled. Below is how this is set up:

\dfrac{4\;blue\;eggs}{7\;green\;eggs} = \dfrac{100\;blue\;eggs}{x\;green\;eggs}

Now let's solve for x:

\dfrac{4\;blue\;eggs}{7\;green\;eggs} = \dfrac{100\;blue\;eggs}{x\;green\;eggs}\\\\or\\\\\dfrac{4}{7}=\dfrac{100}{x}\\\\Cross-multiply\\\\4x = (7)(100)\\\\4x = 700\\\\Divide\;both\;sides\;by\;4\\\\\dfrac{4x}{4}=\dfrac{700}{4}\\\\x=175

For your attached problem:

You have a total of 175 people, you need to figure out how many round tables you need if here are 8 chairs for each table You just need to divide the number of people by the number of chairs per table.

175 ÷ 8 = 21.9 tables

Now since you cannot have half a table, you round up to the nearest whole number. (we round up because you need to make sure that all of them are seated)

21.9 ≅ 22 tables.

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How many grams of cream that is 10% fat should a barista add to 120 grams of cream that is 20% fat mixture to get a 18% fat mixt
Doss [256]

Answer:

x = 30

Step-by-step explanation:

10% fat = 0.1x

x = the solution, what we want to find

120 grams of 20% fat = 0.2 * 120

What we want is mixture of 18%

So....

0.1x + 0.2 * 120 = 0.18 (x + 120)

Solve:

0.1x + 24 = 0.18 (x +120)

0.1x + 24 = 0.18x + 21.6

24 = 0.08x + 21.6

x = 30

4 0
3 years ago
Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!! NO SCAM LINKS !!!!!!!!!!!!!!!!!!
Xelga [282]

Answer:

115

Step-by-step explanation:

180-65=115

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4 0
3 years ago
Solve the following inequalities:
Ghella [55]

Answer:

A) w > -7

B) 1.5 < t

C) -3.5 makes A) true and B) false

    10 makes both inequalities true

Step-by-step explanation:

The idea of these exercises is to clear our variable, we need it to be alone on one side of the inequality

A) 2w + 17 ˃ -4w -25

First, we will put together on one side the terms with a w and on the other the terms without w.

For that, we have to add 4w - 17 on both sides

2w + 17 + 4w - 17 ˃ -4w -25 + 4w - 17 (Notice that 17-17=0 and -4w+4w=0, so we don't have to write them below)

2w + 4w > -25 - 17

Now we can sum the terms (we didn't do it before because <u>we can't sum a term with a w with one without it</u>)

6w > -42

We divide by 6 on both sides and we have

6/6w > -42/6

w > -7

B) 2.3 + 0.6t ˂ 2 + 0.8t

We start as before; in this case we have to put together the terms with a t (our variable changes name but the idea is the same)

We will add -2 - 0.6t on both sides

2.3 + 0.6t -2 - 0.6t ˂ 2 + 0.8t -2 - 0.6t  

2.3 - 2 < 0.8t - 0.6t

Now we sum the terms  

0.3 < 0.2t

We divide by 0.2 on both sides and we have

0.3/0.2 < 0.2/0.2t

1.5 < t

C) Let's check -3.5 on both inequalities:

We have to replace the variable by -3.5:

2*(-3.5) + 17 ˃ -4*(-3.5) -25 (remember that if there is no sign between a number and a variable, it means that is a multiplication)

Now we just solve the calculation

-7 + 17 > 14 -25

10 > -11

That's true, so -3.5 makes the inequality true.

Now, in the other inequality, we replace the t by -3.5 and solve as before

2.3 + 0.6*(-3.5) ˂ 2 + 0.8*(-3.5)

2.3 - 2.1 < 2 - 2.8

0.2 < -0.8

That's false because we are saying that a negative number is bigger than a positive one, so -3.5 makes the inequality not true.

  Now we do the same with 10 in both inequalities:

   2*10 + 17 ˃ -4*10 -25

   20 + 17 > -40 -25

   37 > - 65

   It's true!

   2.3 + 0.6*10 ˂ 2 + 0.8*10

   2.3 + 6 < 2 + 8

   8.3 < 10

   It's true!

3 0
3 years ago
Help me!!! the question is in the attachment
pentagon [3]
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therefore the integers it's between are 16 and 17
4 0
3 years ago
Is 3.77 rational or irrational
faltersainse [42]
It is rational because it doesn't go on forever
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