On Tuesday, Jennifer will mix Crunchy Grain cereal
with Super Grain cereal for her breakfast. Super
Grain cereal provides 240 calories per cup. If the total
number of calories in one cup of Jennifer's mixture is
270, how much Super Grain cereal is in one cup of
the mixture?
270, how much super grain cereal is in one cup?

Answers

Answer 1

Answer:

there are 1/4 cups of Super Grain Cereal in the mixture

Explanation:

Super Grain cereal provides 240 calories per cup. Thus, for s cups of Super Grain cereal, there will be 240s calories

Crunchy Grain cereal provides 210 calories per 3/4 cups. Thus, 210 ÷ 3/4 per cup.

210 ÷ 3/4 = 280 calories, For c cups of Crunchy Grain cereal, there will be 280c calories

Jennifer mixes c cups of Crunchy Grain cereal, having 280 calories and s cups of Super Grain cereal, having 240 calories to get a final 1 cup mixture containing 270 calories, which can be expressed mathematically as:

280c + 240s = 270 ------- eqn(1)

Since, s cups of Super Grain cereal and c cups of Crunchy Grain cereal equals 1 cup, of the final mixture

c + s = 1 ------- eqn(2)

from eqn(2),

c = 1 - s

substitute c = 1 - s into eqn(1)

280(1 - s) + 240s = 270

280 - 280s + 240s = 270

- 40s = 270 - 280

-40s = -10

s = (-10)/(-40)

s = 1/4

Therefore, there are 1/4 cups of Super Grain Cereal in the mixture

Ans B

(Hope this helps can I pls have brainlist (crown)☺️)

Answer 2

The serving made by Jennifer on Tuesday contains 1/4 cup of Super Grain cereal. Thus, option B is correct.

What is the mathematical expression?

The mathematical expression is given as the representation of the quantities in terms of variables.

The complete question is given in the image attached below.

The serving of 3/4 cup of Crunchy cereal = 210 calories

The serving of x cup of Crunchy cereal = 210/3/4 * x

The serving of x cup of Crunchy cereal = 280x calories

The serving of 1 cup Super Grain cereal = 240 calories

The serving of y cup of Super Grain cereal = 240y calories

The total serving made by Jennifer on Tuesday = 270 calories

280x + 240y = 270 calories

The serving made by Jennifer = 1 cup

x + y = 1 cup

x = 1 - y

Substituting the value of x in the equation of calorie:

280 (1 - y) + 240y = 270

280 - 280y + 240y = 270

280 - 270 = 280y - 240y

y = 1/4

The serving of super grain cereal made by Jennifer on Tuesday was y cup. Thus, super grain cereal in one cup was 1/4. Hence, option B is correct.

Learn more about mathematical expression, here:

https://brainly.com/question/14462529

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On Tuesday, Jennifer Will Mix Crunchy Grain Cerealwith Super Grain Cereal For Her Breakfast. SuperGrain

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A researcher conducts a repeated-measures study comparing two treatment conditions (before and after) with a sample of n = 20 participants and obtains a t statistic of t = 4.21. What is the correct decision for a one-tailed test

Answers

Answer:

Reject the null hypothesis with a one-tailed test but fail to reject with two tails

Explanation:

at city high school the sophomore class has 60 students and the freshman class the junior class has 50 fewer students than twice the students in the freshman class the senior class is three times as large as the freshman class if there are a total of 1424 students at city high school how many students are in the freshman class ​

Answers

Answer:

Explanation:

Freshman: x students

Sophomore: 60 students

Junior: 2x - 50 students

Senior: 3x students

Total: 1424 students

Add all these together, it will be equal to 1424.

x + 60 + (2x - 50) + 3x = 1424

x + 60 + 2x - 50 + 3x = 1424

x + 2x + 3x + 60 - 50 = 1424

6x + 10 = 1424

6x + 10 - 10 = 1424 - 10

6x = 1414

[tex]\frac{6x}{6} = \frac{1414}{6}[/tex]

x = 235.67

The freshman class has either 235 or 236. 236 would make sense if we round it off.

But if freshman class has 236 students, the total would be 1426. If it has 235 students, the total would be 1420.

It's kinda weird. I don't know if I miss anything.

Kể về một kỉ niệm của một người thân trong gia đình Ngữ Văn 9

Answers

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