The official answer explanation is a bit confusing. Can you please explain B)?
A truck enters a stretch of road that drops 4 meters in elevation for every 100 meters along the length of the road. The road is at 1300 meters elevation where the truck entered, and the truck is traveling at 16 meters per second along the road. What is the elevation of the road, in meters, at the point where the truck passes t seconds after entering the road?
A) 1300-0.04t
B) 1300-0.64t
C) 1300-4t
D)1300-16t
Hi Sir,
A class X cargo ship can hold a maximum of 18000 standard containers. A class X cargo ship can hold 20 percent more containers than a class Y cargo ship. How many more containers can a class X cargo ship hold than a class Y cargo ship?
How to resolve this question?
Thank you!
I had a question about practice question #3 of the Angles, Triangles, and Polygons chapter. I understand the logic behind why A)15 is the answer (Triangle Inequality Theorem), but I think that C)22 could also be a possible answer because the problem never specifies whether RS is one of the two congruent sides or the non-congruent side. If RS were the non-congruent side, and 22 was the perimeter, the remaining sides would each be 6.5, which are not integers. Is my reasoning correct?
What is the best way to solve this problem within ~1 minute? (given SAT time limit)
y -x =2 and y + x= -2 ,Then ( x+y)(x-y)=?
COLLEGE BOARD Test 9 Math Section 3 #13
Could you suggest a shortcut or fast way to solve this? All the answers are written in vertex form, so we can quickly eliminate two of them, as the coordinates of the vertex, as indicated by the graph provided, must be (3,1). That leaves choices A and C. Is there a quick way to solve from there without plugging in values from the graph?
In question #10 of the backsolving chapter : in the xy plane, a line containing the points (a, a^3) and (10,40) passes through the origin. Which of the following could be the value of a?
I found the explanation in the answer key to be too time-consuming if I were to solve the equation with backsolving. Can you explain how to solve this question algebraically instead?
Test 7 Section 3: #8
Test 7 Section 3: #6
For #23 on Test 8, I understand the “q/4” part on the exponent but why does the rate stay the same? Wouldn’t you divide 1.02 by 4?
Hi Mike! Can you please solve #29 (Test 8, Section 4)?
Thank you!
Can you please solve #37 in Section 4 of Test 8?
Thank you!
The call signs of radio and television stations in the United States generally begin with the letter W east of the Mississippi River and the letter K west of the Mississippi. Repetition of letters is allowed. How many different call signs are possible if each station uses a W or K followed by 3 letters?
O.M 0.N5
24. M and N represent digits in the two decimals
listed above. One of the decimals is equivalent
to 1/4 and the other is equivalent to 1/2. What
is the sum of M and N?
(A) 2
(B) 3
(C) 5
(D) 6
(E) 7
Renting video games from The Video Vendor costs
$6 per game with no annual membership fee. Renting
video games from The Game Garage costs $3 per
game, but a customer must pay an additional $60 for
an annual membership. If n represents the number of
video games a customer rents in a year, which of the
following gives all values of n for which it costs less
to rent from The Game Garage than from The Video
Vendor?
