Write a system of equations to describe the situation below, solve using elimination, and fill in the blanks.Emma likes to knit hats and mittens for friends and family. Last fall, she knitted 1 hat and 3 pairs of mittens, which took a total of 46 hours. This fall, she knitted 1 hat and 1 pair of mittens, which took a total of 18 hours. If each hat takes the same amount of time and each pair of mittens takes the same time, how long does it take Emma to knit each item?It takes Emma _ hours to knit a hat and _ hours to knit a pair of mittens.
Q. Write a system of equations to describe the situation below, solve using elimination, and fill in the blanks.Emma likes to knit hats and mittens for friends and family. Last fall, she knitted 1 hat and 3 pairs of mittens, which took a total of 46 hours. This fall, she knitted 1 hat and 1 pair of mittens, which took a total of 18 hours. If each hat takes the same amount of time and each pair of mittens takes the same time, how long does it take Emma to knit each item?It takes Emma _ hours to knit a hat and _ hours to knit a pair of mittens.
Define Variables: Let's denote the time it takes Emma to knit a hat as h hours and the time it takes to knit a pair of mittens as m hours. From the first scenario, we have the equation h+3m=46 because she knitted 1 hat and 3 pairs of mittens in 46 hours.
Form Equations: From the second scenario, we have the equation h+m=18 because she knitted 1 hat and 1 pair of mittens in 18 hours.
Elimination Method: We now have a system of two equations. We will use elimination to solve for h and m. To eliminate h, we can subtract the second equation from the first equation.
Subtract Equations: Subtracting the second equation from the first, we get (h+3m)−(h+m)=46−18, which simplifies to 2m=28.
Solve for m: Solving for m, we divide both sides of the equation by 2, giving us m=14. This means it takes Emma 14 hours to knit a pair of mittens.
Substitute into Equation: Now that we know m, we can substitute it back into the second equation to find h. Substituting m=14 into h+m=18 gives us h+14=18.
Final Solution: Solving for h, we subtract 14 from both sides of the equation, giving us h=18−14, which simplifies to h=4. This means it takes Emma 4 hours to knit a hat.
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