Make sure that you are multiplying the inputted furniture price by 1.70, not .70, because mark up is essential adding to. You don't want .70 of the furniture price, you want it to be marked up by .70. Otherwise, your math looks great!
Answer:78 guests
Step-by-step explanation:
understanding the problem
the furniture is set up for the reunion and we need to determine how many guests are expected
devising a plan
the furniture for guests = chairs
steps
determine the number of tables as there are 6 chairs to each table
what is the unknown?
number of tables and number of chairs
what are the data?
364 furniture legs
tables sit 6 chairs each
tables have 4 legs
each chair has 4 legs
which letter should determine the unknown?
a= tables
b= chairs
what is the condition linking the letters
a*6=b
(a+b)*4=364
is the condition sufficient to determining the unknown?
364/4= a+b
91= a + b
a * 6 = b
b/6 = a
91- b = a
91 = (91-b) + a
(91-b) * 6 = b
b/6=91-b
b= 6*91 - 6b
b = 546 - 6b
b + 6b = 546
7b = 546
b = 546 / 7
answer
b = 78 guests = chairs
test
a*6 = 78
a= 78/6 = 13 tables
(a + 78) * 4 = 364
(13+78)*4 = 364
91*4= 364 correct
364/4= a+ 78
91 = a + 78
91 - 78 = a = 13 tables
Answer:
x=69
Step-by-step explanation:
1. (6,8)
2. (-8,-6)
EXPLANATION:
1. x^2 +(x+2)^2 = 100
> x^2 +(x+2)^2 = 100-1
>> x^2 +2x - 48 = 0
>>> x - 6 = 0 , x + 8 = 0
>>>> x = 6, -8
2. Y = 8,-8
3. Y = 6, -6
(8,6)
(-8, 6)
Answer:
9*3.14=28.26
Step-by-step explanation:
Hope this Helps!