Answer:
C. Inverse
Step-by-step explanation:
The second statement is the inverse, because in an inverse, the hypothesis and the conclusion are both negated. In this case, the sun doesnt shine and the people wont be in a good mood, as opposed to the sun will shine, and the people will be in a good mood.
Pergunta correta:
Seja 17x + 51y = 102. Qual é o valor de 9x + 27a? (A) 54 (B) 36 (C) 34 (D) 18 (E) indeterminado
Resposta: A) 54
Explicação passo a passo:
17x + 51y = 102 - - - - equação 1
Divulgue até 17
x + 3y = 6 - - - - - - - Equação 2
9x + 27y - - - - - - - equação 3
Comparando as equações 2 e 3
(Equação 3) = 9 × (equação 2)
Isso é, 9x + 27y = 9 × (x + 3y = 6)
9x + 27y = 9x + 27y = 54
Portanto ; 9x + 27y = 54
Answer:
The number of bouquets of flowers that the stand will sell by 6:00 PM is:
C) 204
Step-by-step explanation:
a) Data and Calculations:
Number of bouquets of flowers that the Stand sells in one hour = 24
Operating time starts at 9:00 AM and closes at 12:30 PM for a 30-minute lunch break.
From 9:00 AM to 12:30 PM, 3.5 hours, it has sold 24 * 3.5 = 84 bouquets of flowers
From 1:00 PM to 6:00 PM, 5 hours, it will sell 24 * 5 = 120 bouquets of flowers.
Therefore, total bouquets of flowers sold within 8.5 hours = 204 (84 + 120).
Suppose x grams of 8% solution should be mixed to make 100 g of 3% solution.
here we shall have:
the amount of 3% solution in the 100 g will be:
3/100*100=3 grams
the the equation will be, 8% of what quantity becomes 3g?
(8/100)*x=3
hence solving for x we shall have:
0.08x=3
x=3/0.08
x= 37.8 grams
The implication of this is that, when you have 37.5 grams of 8% solution, that will contain 3 of pure chemical and hence when you add more solvent on top of 37.5 g until you reach 100g, that will be 3% solution.
1/3x + y < = 5 <== ur inequality
y < = -1/3x + 5....u have a slope of -1/3....ur y int is (0,5)....ur x int is (15,0)....it will be a dashed line (because there is an equal sign in the problem) and it will be shaded below the line (because it is less then)
