SAT-Mathematics 試験問題を無料オンラインアクセス

It takes eight people 12 hours to clean an office. How long would it take six people to clean the office?

• A.18 hours
• B.15 hours
• C.24 hours
• D.16 hours
• E.9 hours

What is the distance from the point where the line given by the equation 3y = 4x + 24 crosses the x-axis to
the point where the line crosses the y-axis?

正解：

10
Explanation/Reference:
Write the equation in slope-intercept form

The line crosses the y-axis at its y-intercept, (0,8). The line crosses the x-axis when

Use the distance formula to find the distance from

In the diagram above of f(x), for how many values does f(x) = -1?

• A.1
• B.3
• C.2
• D.0
• E.4

The function -8 when j = -3 j = -3, what is the value of k?

正解：

6
Explanation/Reference:
j@k = -8whenj = -3then:

If a number is chosen at random from a set that contains only the whole number factors of 24, what is the
probability that the number is either a multiple of four or a multiple of six?