Answer:
3.375 for k12
Step-by-step explanation:
A.
(3, 1), (9, –1), (7, –4), and (1, –2)
B.
(3, 1), (9, –1), (7, 0), and (1, –2)
C.
(3, 5), (9, 3), (7, 0), and (1, 2)
D.
(1, 7), (7, 5), (5, 2), and (–1, 4)
The number 97.356 pounds written in word form would be 'ninety-seven point three five six pounds'. When writing decimals in word form, use 'point' for the decimal, and state each digit individually after the decimal.
To write 97.356 pounds in word form, simply write it as 'ninety-seven point three five six pounds'
This is simply a conversion of each digit and the decimal point into its corresponding word in the English language. The 'point' corresponds to the decimal point in the number, and 'ninety-seven', 'three', 'five', and 'six' correspond to the digits in the number.
In general, when converting decimal numbers into word form, remember to say 'point' where the decimal occurs, and then state each digit after the decimal individually.#SPJ11
This question is based on the system of equation. Therefore, the 8 litres of the 20% and 7 liters of the 50% solution.
Given:
A chemist needs to mix an 20% acid solution with a 50% acid solution to obtain 15 liters of a 34% acid solution.
We need to determined the numbers of liters of each of the acid solutions must be used.
According to the question,
Let the number of liters be x for 20% and y for the 50% solution.
Then,
⇒ 0.2x + 0.5y = 15 0.34
⇒ 0.2x + 0.5y = 5.1
Also we have:
Multiply the first equation by -2:
⇒ x + y = 15
Adding these last 2 equations:
⇒ -0.4x - y = -10.2
⇒ 0.6x = 4.8
⇒ x = 4.8 / 0.6
⇒ x = 8 and y = 15 - 8 = 7 .
Therefore, the 8 liters of the 20% and 7 liters of the 50% solution acid solutions must be used.
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Answer:
8 litres of the 20% and
7 litres of the 50% solution.
Step-by-step explanation:
Let the number of litres be x for 20% and y for the 50% solution. Then
0.2x + 0.5y = 15*0.34
0.2x + 0.5y = 5.1 Also we have:
x + y = 15 Multiply the first equation by -2:
-0.4x - y = -10.2 Adding these last 2 equations:
0.6x = 4.8
x = 4.8 / 0.6
x = 8.
and y = 15 - 8 = 7 .
Table showing prices and incentives at different stores - first column Store, second column Regular price, third column Incentive. First row Store A, Regular price 199 dollars and 99 cents, Incentive 10 dollar mail-in rebate. Second row Store B, Regular price 217 dollars and 95 cents, Incentive sale for 15 percent off. Third row Store C, Regular price 235 dollars and 87 cents, Incentive 25 dollars off sale and 15 dollar off coupon. Fourth row, Store D, Regular price 206 dollars and 75 cents, Incentive coupon for 5 percent off a regular-price item ( picture below )
Answer:
B and D
Step-by-step explanation:
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