Solve the problem.x and y are two positive numbers and y is three greater than x. The product of the numbers is 130. Find the smaller number, x.
A. 7
B. 13
C. 10
D. 5
Answer: C
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Use a proportion to solve the problem.A quality-control inspector examined 260 calculators and found 10 of them to be defective. At this rate, how many defective calculators will there be in a batch of 18,200 calculators?
A. 70 calculators B. 2600 calculators C. 700 calculators D. 7 calculators
Use lattice multiplication to determine the product.185 × 302
A. 55,970 B. 55,870 C. 55,880 D. 55,860
Solve the system of equations by the substitution method. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent.-5x - 44 = 9y-2x + 3y = -22
A. (2, -6) B. Infinitely many solutions; dependent C. (1, -5) D. (2, -5)
Solve for x using an equivalent exponential expression.The outside of a water storage tank is in the shape of a sphere. Approximate to the nearest hundredth the volume of the tank with a radius of 13 feet. Use 3.14 for ?.
A. 9,198.11 cu ft B. 707.55 cu ft C. 6,898.58 cu ft D. 530.66 cu ft