3 years ago

Can u show the step and thanks

Mathematics

1 answer:

Rudiy273 years ago

4 0

Answer:

B) 378 students could be expected to attend the game.

Step-by-step explanation:

Out of 40 students, 45% agreed,

45% of 40

= 45/100 * 40

= 18 students,

18 students out of 40 agreed.

So, Out of 840 students 18/40 * 840 students would be expected to agree. We get :- 378

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Genna threw 45 grams of sugar into 55 grams of water. She made ___ grams of ___% sugar syrup.

OlgaM077 [116]

Answer:

She made She made 100 grams of 45% sugar syrup.

Step-by-step explanation:

Genna added 45 grams of sugar into 55 grams of water.

Total amount she mixes = 45 + 55 = 100 grams.

Percentage of sugar in total mixture (sugar syrup) = 45 grams sugar in 55 grams syrup.

$\text{\% by mass}=\dfrac{\text{mass of solute}}{\text{(mass of solute + mass of solvent)}} \times 100$

Here, Solute is sugar and Solvent is water.

mass of solute = 45

mass of solute + mass of solvent = 100

Putting values, we get,

$\text{\% by mass}=\dfrac{45}{100} \times 100$

$\text{\% by mass}=45\%$

Thus, She made She made 100 grams of 45% sugar syrup.

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