Answer:
Step-by-step explanation:
1 hour=60 min
7 hours=60×7=420 min
number of blink=420×13=5460
Answer: 4b - a = 15
Step-by-step explanation: if you replace the variables with their equivalent counterparts you get the equation 4(7) - 12 = __ when you do the math make sure to do the parentheses first then subtract, just like in elementary school remember pemdas parentheses, exponents, multiplication, division, addition, subtraction. I hope this helps.
Answer:
Use the formula y2-y1 / x2-x1
Or
Remember rise / run
just count the blocks
So the answer would be
6-4/2-8
=
2/-6
or -2/6
Step-by-step explanation:
Answer: 600
Step-by-step explanation:
Given : Sue planted 4 times as many apple seeds as she planted orange seeds. 15 percent of the apple seeds grew into trees, and 10 percent of the orange seeds grew into trees
Let x be the number of apply seeds and y be the number of orange seeds , the we have the following equations:-
(1)
(2)
Put x= 4y in (2), we get
Divide both sides by 0.70.
Hence, Sue planted 600 orange seeds.
26/10 = 2.60 .... 2.60 x 30 = 78. So 78 is the answer