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katrin [286]
3 years ago
14

Jacob had 15 apples and gave 10 to his brother. If he had 21 apples and wanted to give the same percentage to his brother, how m

any apples should he get?
Mathematics
2 answers:
Dvinal [7]3 years ago
8 0
14 Apples

10 is 2/3 of 15, and 14 is 2/3 of 21, so 14 apples would make it an equal percentage
Tju [1.3M]3 years ago
6 0

Answer:

14 apples

Step-by-step explanation:

10/15 = 2/3 = 66 2/3%

21 / 3 = 7

7x2 = 14

14 apples

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The 18 faculty members in a college math department range in age from 32 to 68. A stem plot follows: The first and third quartil
valentina_108 [34]

Answer:

Q_{1}=39, \:and\: Q_{3}=58

Step-by-step explanation:

1) This Stem and Leaf plot works like a Histogram. Completing the question, check below the Stem plot. Look the data out of the Stem plot and within (in the graph below)

32, 34 , 38 , 39 , 39 , 40 , 43 , 45 , 46 , 49 , 53 , 54 , 57 , 58 , 59 , 59 , 63 , 68

2) Notice how the first digit is on the Stem column (check below)

3) To find the first and Third Quartiles

Let's use the formulas to find the position, then the value. As it follows:

Q_3=\frac{3}{4}(n+1) \Rightarrow  Q_3=\frac{3}{4}(18+1) Q_3=14.25 \approx14th =58

Q_1=\frac{(n+1)}{4} \Rightarrow Q_1=4.75 th \approx Q_1 =5th =39

4 0
3 years ago
1) 2x – y = 1
aleksandrvk [35]

Answer:

1) (2, 3)

2) (2, -5).

Step-by-step explanation:

2x – y = 1

2x +2y = 10   Subtract to eliminate  the 2x:

2x - 2x - y - 2y = 1  - 10

-3y = -9

y = 3.

Plug this into the first equation:

2x - 3 = 1

2x = 4

x = 2.

2)

5x – y =15

x + y = -3     Adding to eliminate y:

5x + x - y + y = 15 + -3

6x = 12

x = 2

Plug this into the first equation:

5(2) - y = 15

-y = 15 - 10 = 5

y = -5.

6 0
3 years ago
Express the following as standard numbers:
Ksenya-84 [330]

Answer:

A. 56,000

B. 784,000,000

C. 620

D. 0.00000432

Step-by-step explanation:

{ \tt{}}

5 0
3 years ago
I need help for this
Alenkasestr [34]
Answers is
A'= -3,3
B'=4,-1
C'=-2,0
5 0
3 years ago
Convert base 10 273 to a base 12
Margaret [11]
The highest power of 12 that divides 273 (with remainder) is 12^2=144, and dividing gives

273=1(144)+129

Divide the remainder term by the next highest power of 12, 12^1=12.

129=10(12)+9

So 273_{10}=1a9_{12}, since

273=1\cdot144+10\cdot12+9\cdot1=1\cdot12^2+10\cdot12^1+9\cdot12^0
7 0
3 years ago
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