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xenn [34]
3 years ago
8

To celebrate the first day of school, Austin brought in a tray of caramel brownies and walnut brownies. He brought 14 caramel br

ownies and 6 walnut brownies. What percentage of the brownies were caramel?
Mathematics
1 answer:
kramer3 years ago
5 0
The answer is 70%. There were 20 brownies total (14+6), and 14 out of 20 were caramel. 14/20 as a percent is 70%!
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Apples are on sale for 1.20 a pound. Logan bought 3/4 of a pound. How much money did he spend in all
sergeinik [125]
$1.20                    3($1.20)
-------- * (3/4 lb) = ------------ = $0.90   (cost of 3/4 lb of apples)
  1 lb                          4 lb
3 0
3 years ago
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Which expression is equivalent to \sqrt(-80)?
DedPeter [7]
√-80 can be factored out, to see which factors can be square rooted. A pair of factors would be 16 and -5, so that would be 4√-5. But, negative numbers cannot be inside a square root. So, √-1 is the same thing as <em>i</em>, or <u>imaginary number</u>. So, the expression equivalent to √-80 is 4<em>i</em>√5.
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8 0
2 years ago
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For numbers 7 and 8, determined whether the triangles are congruent. explain your reasoning.
raketka [301]

Answer:

#7 is congruent

#8 is not congruent

Step-by-step explanation:

#7 is congruent because of the angle angle side triangle congruency theorem.

#8 is not congruent because it’s properties don’t match with any of the triangle congruency theorems.

3 0
2 years ago
A large airplane has 3 sections of seating, with 75 seats in each section. Which pair of expressions shows two ways to determine
valentina_108 [34]

Answer:

You can either multiply 3 by 75 or do 75+75+75

thats pretty much it

Step-by-step explanation:

7 0
3 years ago
I am donating packages for Christmas drive. After the first week, I spent 126 to donate three children packages and 8 adult pack
anastassius [24]

Answer:

Step-by-step explanation:

Let the price for children and adults package be represented with x and y respectively.

For the first week the sum of the package will be as follows:

3x+8y = 126

For the two weeks after:

6x+4y= 108

So, we will be having two equations

3x+8y = 126..... (1)

6x+4y= 108.......(2)

These are simultaneous equations

From equation 1

3x+8y = 126

3x = 126-8y

X = 126-8y/3 ............. (3)

Put equation 3 into 2

6 ( 126-8y)/3 +4y = 108

756-48y/3 +4y = 108

756-48y+12y/3 = 108

Cross multiplying

756-48y+12y= 108×3

756-48y+ 12y = 324

Collecting like terms

756-324 = 48y-12y

432= 36y

Divide both sides by 36

432/36 = 36y/36

y= 12

Substituting y into equation 1

3x+8= 126

3x+96=126

3x= 126-96

3x= 30

Divide both sides by 3

3x/3 = 30/3

x = 10

Hence for each of the packages for children and adults. It will be 10 and 12 respectively.

8 0
3 years ago
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