SAT & ACT Math: Growth and Decay Problems
A cat initially weighs 850 grams. It loses 4 percent of its weight every 7 years. Find its weight after 6 years.
A cat initially weighs 850 grams. It loses 4 percent of its weight every 7 years. Find its weight after 6 years.
The half life of a cell is 180 years. The initial mass is 40 units. Find the mass after 300 years.
Line w passes through (6,12) and (-4,-8). Find the x int and y int. Line q is perpendicular to line w. Line q passes through (14,2). Find the x int and y int of line q. If line q passes through (2,d), what is the value of d? Tutoring Englewood Cliffs Tutoring Englewood Tutoring Teaneck[…]
Did you know? Many math topics are on both the SAT and ACT. Here’s an example—midpoint, slope, distance, and linear functions problems? Try these two for fun 1. Find the midpoint between (-6,12) and (4,-8). 2. (3,6) is the midpoint of (a,b) and (12,-4). Find the values of a and b. Summer is here and[…]
What number is 405% of 90 What percent of 500 is 75? 42 is 70% of what number 45% of 500 is what number 12 out of 15 is what percent 125% of 80 is what number 21 out of[…]
Remnant- Leftover piece/memory of something Raiment- Clothing Sonorous- Deep voice/sound Somnolent- Sleepy Vittles- Food, supplies Caisson- Chest or wagon for holding bullets, Diadem- Crown Dyad- Two opposing sides Diodes- Two terminal electrical component Exegesis- Summary/interpretation of a text Funicular- Cable car Fusillade- Round of shots or fireworks Capacious- Roomy Osculate- Kiss or to be tangent[…]
Municipal- County or Local Lattice- A wooden frame Preclude- Prevent, cut off possibilities Tyrant- Ruthless dictator Efficacious- Efficient, helpful Calamity- Disaster Revel- Partying/Enjoying Sparring- Dueling physically, or engaging in an argument Portend- Predict into the future Pontificate- Lecture in a bossy tone Proscription- Not allowed, not permitted Vagary- Unpredictable or extravagant action or notion Alderman-[…]
Truculent- Fierce, cruel, savage Extenuating- Mitigating/lessening the severity of Novice- Beginner/Apprentice Venerable- Respected because of age. Incipient- Initial stage/ coming into being Congenial- Pleasant/agreeable Ad hoc- Improvised, makeshift solution designed for a specific problem or task, non- generalizable, and which cannot be adapted to other purposes Status quo- Current situation Subjugate- Bring under control/ dominate (political[…]
Dilettante- A person who is interested in something like the arts, but does not really know a lot about it. Recidivist- A criminal who repeats the offense Robust- Strong Plight- Suffering/Bad situation Complicity- Participating in a crime Arbor- Related to the earth or trees Eulogy- Tribute (+) for someone who died Felicity- Great happiness Felicitous- Pleasing/lucky[…]
Verizona offers a cell phone plan that provides 250 free text message. After that, consumers pay $0.05/message. Sprintina has a plan that charges $0.02/message. At what quantity of messages do Verizona and Sprintina cost the same. 12x–y=8x+40x+6y=50 Find the value of y–x. Point A: (11, 5) Point B: (-4,-3) Point C: (10.5,-4) Point D: (2,4) Find[…]