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sergeinik [125]
2 years ago
15

David has scored 81 , 87 , 69 , and 82 on his previous four tests. what score does he need on his next test so that his average

(mean) is 82 ?
Mathematics
1 answer:
kvv77 [185]2 years ago
7 0
91 so the mean can avrege out to 82
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The quotient of a number and 2 is the same as the difference of the number doubled and 3. What is the number?
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Answer:

Step-by-step explanation:

x/2 = 2x-3

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What Should i write down basically i just need the answers and let me copy and paste
Anastaziya [24]

Answer:

✔️Ratio of weight to mass in simplest form: 49/5 or 49 : 5

✔️x = 110

Step-by-step explanation:

Since the ratio of weight to mass is constant, therefore we can use any pair of values from the table to find the ratio that represents the table. Let's pick the first row:

(20, 196)

Ratio of weight to mass = 196 : 20

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✔️Let's use this ratio/proportion to find x in the table

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Cross multiply

x*49 = 1078*5

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x = 5,390/49

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