Homework Explained - Math Practice 101

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Grade 7 HMH Go Math - Answer Keys


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  • Question 1 (request help)

    Which expression is equivalent to \((9\text{x} - 3\frac{1}{8}) - (7\text{x} + 1\frac{3}{8})\)?

    • \(2\text{x} - 4\frac{1}{2}\)
    • \(16\text{x} - 4\frac{1}{2}\)
    • \(2\text{x} - 1\frac{3}{4}\)
    • \(16\text{x} - 1\frac{3}{4}\)
  • Question 2 (request help)

    Timothy began the week with $35. He bought lunch at school, paying $2.25 for each meal. Let x be the number of meals he bought at school and y be the amount of money he had left at the end of the week. Which equation represents the relationship in the situation?

    • \(\text{y} = 2.25\text{x} + 35\)
    • \(\text{y} = 35 - 2.25\text{x}\)
    • \(\text{x} = 35 - 2.25\text{y}\)
    • \(\text{y} = 2.25\text{x} - 35\)
  • Question 3 (request help)

    Which expression factors to \(8(\text{x} + 2)\)?

    • \(8\text{x} + 2\)
    • \(8\text{x} + 10\)
    • \(16\text{x}\)
    • \(8\text{x} + 16\)
  • Question 4 (request help)

    Ramón’s toll pass account has a value of $32. Each time he uses the toll road, $1.25 is deducted from the account. When the value drops below $10, he must add value to the toll pass. Which inequality represents how many times Ramón can use the toll road without having to add value to the toll pass?

    • \(10 - 1.25\text{t} \ge 0\)
    • \(-1.25\text{t} + 32 \lt 10\)
    • \(32 - 1.25\text{t} \ge 10\)
    • \(32 - 10\text{t} \ge 1.25\)
  • Question 5 (request help)

    A taxi costs $1.65 for the first mile and $0.85 for each additional mile. Which equation could be solved to find the number x of additional miles traveled in a taxi given that the total cost of the trip is $20?

    • \(1.65\text{x} + 0.85 = 20\)
    • \(0.85\text{x} + 1.65 = 20\)
    • \(1.65\text{x} - 0.85 = 20\)
    • \(0.85\text{x} - 1.65 = 20\)
  • Question 6 (request help)

    A sales tax of 6% is added to the price of an item. If Marisa buys an item, which expression indicates how much she will pay in all?

    • \(\text{n} + 0.06\)
    • \(0.06\text{n}\)
    • \(\text{n} + 0.06\text{n}\)
    • \(0.06 + 0.06\text{n}\)
  • Question 7 (request help)

    Which equation has the solution x = 12?

    • \(4\text{x} + 3 = 45\)
    • \(3\text{x} + 6 = 42\)
    • \(2\text{x} - 5 = 29\)
    • \(5\text{x} -8 = 68\)
  • Question 8 (request help)

    The 23 members of the school jazz band are trying to raise at least $1,800 to cover the cost of traveling to a competition. The members have already raised $750. Which inequality could you solve to find the amount that each member should raise to meet the goal?

    • \(23\text{x} + 750 \gt 1,800\)
    • \(23\text{x} + 750 \ge 1,800\)
    • \(23\text{x} + 750 \lt 1,800\)
    • \(23\text{x} + 750 \le 1,800\)

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