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Nadusha1986 [10]
3 years ago
6

Ruby frosted 8 cookies in 20 minutes. At this rate how many cookies could she frost in 2 hours?

Mathematics
1 answer:
svlad2 [7]3 years ago
3 0
We know that an hour has 60 minutes. She took 20 minutes to do one batch so we can see how many batches she makes with dividing 60 by 20. This would give us 3 batches per hour. Now we know she makes 8 frosted cookies per 20 minutes so we multiply 8 by 6 (2 hours as 20 min) and it would give us 48 frosted cookies
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A girl scout troop sold cookies. If the girls sold 5 more boxes the second week than they did the first, and if they doubled the
VARVARA [1.3K]
N = first integer 
n + 1 = second integer 
n + 2 = third 
n + 3 = fourth 

the sum is 114 so: 

n + (n + 1) + (n + 2) + (n + 3) = 114 

solve: 

4n + 6 = 114 
4n = 108 
n = 27 

so 27 is your first. 
27 + 1 is your second (remember n +1 n +2 and n +3) 

so your first four integers are: 27 28 29 and 30 


(I'll also help with one) 

week one: x 
week two: x + 5 
week three: 2(x+5) or 2x + 10 

week1 + 2 + 3 = 431 

so its: 

x + (x+5) + (2x + 10) 
4x + 15 = 431 
4x = 416 
x = 104 

its then: 

week one: 104 sold 
week two: 109 sold (x + 5) 
<span>week three: 218 (2x + 10)
</span>
7 0
3 years ago
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Multiply 9/4 x 14<br><br> -23/4<br> -28<br> -63/2
Tatiana [17]

Answer:

<h2>\frac{63}{2}</h2>

Step-by-step explanation:

14 =  \frac{14}{1}

\frac{9}{4}  \times  \frac{14}{1}  =  \frac{126}{4}  =  \frac{63}{2}

6 0
3 years ago
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Sergeu [11.5K]

Answer:

s = 3

Step-by-step explanation:

we know the rectangles are similar

2 × __ = 16

s × __ = 24

so,

16÷2 = 8

2 × 8 =16

s × 8 =24

then,

24 ÷ 8 = s

3 = s

2 × 8 = 16

3 × 8 =24

hoped i helped :)

8 0
3 years ago
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frez [133]
It’s -57 thank me later
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