Subtract 8 from both sides
-3x < 15 - 8
Simplify 15 - 8 to 7
-3x < 7
Divide both sides by -3
<u>= x > -7/3</u>
Answer:
x = 5.4
Step-by-step explanation:
Since A is the scale image of B,
4/3 = 7.2/x
Cross multiplying,
4x = 3*7.2
Dividing by4,
x = 3*7.2 / 4
x = 5.4
Answer: 66
Step-by-step explanation:
6+4^3-8÷2
4^3 = 64
6+64-8÷2
70-8÷2
70-4 = 66
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Answer:
There are 11 four person passengar cars
Step-by-step explanation:
let's call the number of four person cars A , & the number of six person cars B
there are 3 less 6 person cars than 4 people cars which can be written as:
A - 3 = B
there are also 92 total people that can go on max on the whole ride which can be written as:
4A + 6B = 92
Now we need to subsitute in our first equation into the second, so:
4A + 6(A-3) = 92
then distrbute the 6:
4A + 6A - 18 = 92
bring like terms to the same side & consolidate:
4A + 6A = 92 + 18
10A = 110
divide the right by # of A to get a single term :
A = 110/10
A= 11
