Answer:
120 magazines
Step-by-step explanation:
1.15x = 138
x = 120 magazines before increase
Check:
before increase + increase = sold
120 + 120(.15) = 138
120 + 18 = 138
138 = 138
Answer:
28 = 14 + x, 51 = 38 + x
Step-by-step explanation:
I got both sums because the last part says "is 28" and "is fifty-one," signaling that they each take up one side of the equation. Sum means add (so a + sign) and more than also means add (in this case). X just stands for the numbers not given.
You can apply the distance between points formula.
D =√[(diff. of x-coord.)² +(diff. of y-coord.)²]
D = √(2.5 -1.5)² +(3.5-4.5)²
D = √[1² +(-1)²] = √2
D ≈ 1.14142 units
Multiply by 0.1 mile
D = 1.14142 * 0.1 = 0.14142
D≈0.141 miles
Answer: 665.68 ft
Step-by-step explanation:
You‘re trying to find the circumference of the Ferris wheel. The formula for circumference is C=3.14(approximation for pi)x the diameter. So you would do 3.14 x 212 = 665.68
When there are no special grouping symbols, math problems are solved from left to right. Although there are other important rules about the order in which you do the operations (addition/subtraction/multiplication/division) in a math expression or equation, this lesson will focus on grouping symbols. The rest of the order of operations rules will be explained in the Determining Order of Operations lesson. To help prevent confusion as you learn how to use the grouping symbols, this lesson will only use addition and subtraction.
