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diamong [38]
3 years ago
8

Simplify by dividing.

Mathematics
2 answers:
hodyreva [135]3 years ago
5 0
The answer that i got is D. 15/32
bearhunter [10]3 years ago
5 0
It is A because it is not b or c cuz it is negative and d is not even applicable and you would do LCC you would leave ( the first fraction alone) change( change the division sign to multiply)change ( switch numerator and denominator)
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If the mean weight of 4 backfield members on the football team is 221 lb and the mean weight of the 7 other players is 202 lb, w
MatroZZZ [7]

Let x_1, x_2, x_3, x_4, x_5, x_6, x_7, x_8, x_9, x_{10}, x_{11} be the weight of i-th player.

1. If the mean weight of 4 backfield members on the football team is 221 lb, then

\dfrac{x_1+x_2+x_3+x_4}{4}=221\ lb.

2. If the mean weight of the 7 other players is 202 lb, then

\dfrac{x_5+x_6+x_7+x_8+x_9+x_{10}+x_{11}}{7}=202\ lb.

3. From the previous statements you have that

x_1+x_2+x_3+x_4=221\cdot 4=884 \lb,\\ \\x_5+x_6+x_7+x_8+x_9+x_{10}+x_{11}=202\cdot 7=1414\ lb.

Add these two equalities and then divide by 11:

x_1+x_2+x_3+x_4+x_5+x_6+x_7+x_8+x_9+x_{10}+x_{11}=884+1414=2298\ lb,\\ \\\dfrac{x_1+x_2+x_3+x_4+x_5+x_6+x_7+x_8+x_9+x_{10}+x_{11}}{11}=\dfrac{2298}{11}=208\dfrac{10}{11}\ lb.

Answer: the mean weight of the 11-person team is 208\dfrac{10}{11}\ lb.

4 0
2 years ago
Can someone help me ? i need to get done ASAP
Inga [223]

Answer:

Alright well the exact form to this question is

Exact form: 27/49 Well hope this helps have a nice day :)

Step-by-step explanation:


7 0
3 years ago
A $150 Chrome book is on sale for 20% off. How much should you pay for the chrome book
AlladinOne [14]

Answer:

$30

Step-by-step explanation:

8 0
2 years ago
A prime number less than 100 is selected randomly. what is the probability that its square has units digit $7$?
liberstina [14]
Any number ends with 0, 1, 2, 3, 4, 5, 6, 7, 8 or  9

Given any number. The square of this number is the last digit of square of the original numbers units digit.

For example

23*23 ends with 9 (3*3=9)

149*149 ends with 1 (9*9=81)

2564*2564 ends with 6 (4*4=16) 

and so on

so all the possible unit digits of a square number are {0, 1, 4, 5, 6, 9}

because:

0*0= 0 ; 1*1=1; 2*2=4; 3*3=9; 4*4=16; 5*5=25, 6*6=36; 7*7=49; 8*8=64, 9*9=81

Thus, the probability that the square of a number selected from any set of numbers being 7, is 0.


Answer: 0
 

4 0
3 years ago
A cyclist covers a distance of 15 miles in 2 hours. Calculate his speed.
Neporo4naja [7]

Answer:

7.5mph

Step-by-step explanation:

Speed = Distance / Time

Speed = 15 ÷ 2

Speed = 7.5 mph

8 0
3 years ago
Read 2 more answers
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