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4 years ago

The following two-way table shows the data for the students of two different grades in a school:

Mathematics

2 answers:

victus00 [196]4 years ago

6 0

Answer:

Grade 7

Step-by-step explanation:

The relative row frequency of members of the Science Club is: Member of Science Club / Total

in Grade 7: 20/22 = 0.91.

And in Grade 8 is: 20/28 = 0.71.

Then, students of Grade 7 are more likely to be members of the science club.

kompoz [17]4 years ago

5 0

Answer: grade 7

Step-by-step explanation:

Grade 7: 20/22 students in club

Grade 8: 20/28 students in club

Grade 7 has higher % of students in science club

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4. Sean bought 1.8 pounds of gummy bears and 0.6 pounds of jelly beans and paid $10.26. He went back to the store the following

valkas [14]

Let

the price of gummy bears per pound = x

the price of jelly beans per pound = y

$\begin{gathered} 1.8x+0.6y=10.26 \\ 1.2x+1.5y=15.09 \\ 1.2x=15.09-1.5y \\ x=12.575-1.25y \\ \\ 1.8(12.575-1.25y)+0.6y=10.26 \\ 22.635-2.25y+0.6y=10.26 \\ -1.65y=10.26-22.635 \\ -1.65y=-12.375 \\ y=\frac{-12.375}{-1.65} \\ y=7.5 \\ \\ 1.8x+0.6y=10.26 \\ 1.8x+0.6(7.5)=10.26 \\ 1.8x+4.5=10.26 \\ 1.8x=10.26-4.5 \\ 1.8x=5.76 \\ x=\frac{5.76}{1.8} \\ x=3.2 \end{gathered}$

price per pound of gummy bear = $3.2

price per pound of jelly beans = $7.5

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2 years ago

Which car traveled the farthest on 1 gallon of gas? SEE THE PICTURE

xeze [42]

Answer:

Car A. would travel the farthest

6 0

4 years ago

Read 2 more answers

Expand and simplify <br> (X+7)(x-9)

Lorico [155]

Answer:

X²+16x-63

Step-by-step explanation:

expand out the brackets to get:

X²+9x+7x-63

simplify:

X²+16x-63

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3 years ago

"Jose wants to put wall-to-wall carpeting in a rectangular room that measures 11 feet by 12 feet. The carpet costs $4.12 per squ

garri49 [273]

Answer:

$543.84

Step-by-step explanation:

Find the area of the room:

11*12 = 132ft^2

Multiply the area by the cost per square foot:

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4 years ago

Use mental math to solve the equation. x – 14 = 13

Ahat [919]

X=27 because you would add 14 to 13

6 0

3 years ago