Isabel had 12 pages of history and 12 pages of science assignments to read. It took her 10 minutes to read a page of history. She spent a total of 216 minutes to complete all of her reading assignments.

Let x be the time it took Isabel to read one page of science.

Use the equation editor to enter the equation that represents the problem. The equation should have the form p(x+q)=r, using the variable x and the correct values for p, q, and r.

the equation can be 12(x+10)=216

Step-by-step explanation:

time taken for reading 12 pages of science =12×x

time taken for reading 12 pages of history=12×10=120

total time taken =216

the expression can be 12x+120=216

which expressed in the form p(x+q)=r,, it will be 12(x+10)=216

where p=12

q=10

r=216

hope this helps

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2

step-by-step explanation:

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column