Answer:
5 hours
Step-by-step explanation:
Mark recieves 3mg per hour. This can be rewritten as y=3x. Cassie recieves 2x+5. To solve, use substitiution. 3x=2x+5. To solve, subtract "2x" from "3x." You then get x=5.
$1.87 is the answer
explanation: divide $7.48 and 4 because it says per each marker and a little trick: each = divide or multiply! good luck with your school <3
Answer:
b = 6
Step-by-step explanation:
Cross multiply: 39(b) = (26)(9)
39b = 234
Divide both sides by 39
b = 6
Answer:
Step-by-step explanation:
Remark
By manipulating parts of right angle triangles, you get 15/x = x/6
Solution
x^2 = 90
x = sqrt(90)
x = sqrt(3*3 * 2 * 5)
x = 3*sqrt(10)
Answer:
21 miles per gallon
Step-by-step explanation:
13m = 273
m = 21
