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artcher [175]
3 years ago
14

A store has 127 boxes of cookies. There are 21 cookies in each box. What is the total number of cookies in the boxes

Mathematics
1 answer:
ElenaW [278]3 years ago
4 0

Answer:

2667 cookies

Step-by-step explanation:

127 times 21 = 2667

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Find two rational numbers such that the sum of the first and three times the second is 5 and the sum of second and two times the
masha68 [24]

Answer: E. (x,y) = (-19/5, 3/5)

Step-by-step explanation:

7 0
3 years ago
The length of a rectangular painting is 3 inches longer than its width. If the diagonal is 15 inches long, what is the length of
vladimir2022 [97]
A^2+b^2= 15^2

b=a-3

Use substitution
a^2+(a-3)^2= 225
a^2+a^2-6a+9=225
2a^2-6a=-216
2a^2-6a+216=0

2(a^2-3a+108)
2(a-12)(a+9)

(a-12)=0
a=12
(a+9)=0
a=-9
A is -9 or 12, but since an object can't have a negative length or width, a must be 12.

Plug this value of a in.
b=(12)-3
b=9

Final answer: Length=9, width=12
8 0
3 years ago
Read 2 more answers
The price-earnings ratio for firms in a given industry follows the normal distribution. In this industry, a firm whose price-ear
lesantik [10]

Answer:

The correct answer is

A. 16%

Step-by-step explanation:

The zscore is used to solve problems of normally distributed samples.

This score indicates the percentage of a certain measure. It can be found looking at the z table.

For example, if a measure has a percentile of 75%, it is in the 100%-75% = highest 25 percent of all the measures.

Z = 1 has a pvalue 0.8413. So it is in the highest 1-0.8413 = 0.1587 = 16% percent of firms in the industry.

The correct answer is

A. 16%

4 0
3 years ago
What are two other ways to name plane C?
svetoff [14.1K]
Answer: Other names for plane C can be plane EFG or plane EBF hope that helps (:
4 0
2 years ago
If 2x+4 = (x²)²÷2 then what is x?
Leviafan [203]

Answer:

Below.

Step-by-step explanation:

2x+4 = (x²)²÷2

2x + 4 = x^4/2

x^4 = 4x + 8

x^4 - 4x - 8 = 0

We can try trial an error to solve this

Looks like x = 2 fits it:

2^4 - 4(2) - 8

= 16 -8 -8 = 0

so x = 2 is one solution.

I can't find any other solution among other integers.

To find the other solutions you can draw a graph manually or by using software.

There will be either 1 or 3 more real solutions.

I used software to draw the graph and found one other solution:

x = -1.296

8 0
1 year ago
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