To find the percent of increase, subtract the second number from the original/first number (3.68-3.2=0.48) and divide that result by the original number (0.48/3.20=0.15=15%)
30 gallons x 3/5 = 18
250 miles/(50 miles per hour) = 5 hours
Interest = Principal x Rate = $10,000 x 0.07 = $700
$20 - $16.65 = $3.35
One ton = 2,000 pounds. Therefore, 4 tons = 8,000 pounds
15 apples is three times as many as 5 apples, so 15 apples will cost 3x$2 = $6
Explanation:
The correct answer is (B). Algebra is not necessary in this situation. Instead, try each possible response to see which one yields a true statement:
When x= −2, we get:
(−2)(−2−2) > 7 → (−2)(−4) > 7 → 8 > 7
This is accurate, as 8 is greater than 7.
Explanation:
The correct answer is (C). It is stated that AE←→⊥FC←→. This denotes a right angle (90°) formed by the two lines. Any angle that is higher than 90° (but less than 180°) is referred to as an obtuse angle.
Only OA−→and OD−→ have angles that are larger than 90 degrees. Answer options (D) and (B) produce acute angles (less than 90°), whereas answer option (A) rays produce a right angle.
From 7:45 am today to 7:45 am tomorrow is 24 hours. From 7:45 am tomorrow to 3:15 pm tomorrow is 7 1/2 hours. Total is 31 1/2 hours
If it requires 4 people for 2 days, then it would require 8 people for 1 day.
Explanation:
The correct answer is (D). The unit pricing (price per pretzel) is $4.00 since we know that one pretzel costs $4.
We must first estimate the unit pricing when purchasing "3 pretzels for $10" in order to calculate how much we save. In order to do this, we must divide $10 by 3 pretzels:
$10÷3=$3.33 for each pretzel.
To calculate the savings, we take the difference in unit prices:
$4.00−$3.33=$0.67
$5.40/12 = $0.45
Explanation:
The correct answer is (D). Let t stand in for Thomas' age, which is an unknown in this scenario.
"First add 4 to Thomas' age," it says, t+4
The following instruction is to "multiply this sum by three": 3(t+4)
Last but not least, we know that this outcome equals 51: 3(t+4)=51
