<span>[(40 + 5) − 32] ÷ 9
Following BODMAS, we solve the expressions in the bracket.
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<span>[(40 + 5) − 32] ÷ 9
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<span>[45 − 32] ÷ 9
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<span>[13] ÷ 9
13/9 ≈ 1.44...
Hope this helps.
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Answer:
Step-by-step explanation:
move all the terms to the right so your equation will equal 0. then look for the common denominator. which in this case is 60 (5*4*3).
multiply all terms by 60 then simplify.
12(2x-3)-15(6-3x)+120-20(7x)=0
24x-36-90+45x+120-140x=0
combine like terms and then divide
-71x=6
x=-6/71
(do not forget parenthesis when simplifying they are very important when it comes to distributing the minus sign)
Answer:
Mean: 20
Median: 20
Step-by-step explanation:
Mean: 10, 15, 18 22, 25, 30 =120/6=20
Median: 10, 15, 18 22, 25, 30= 18+22=40/2=20
Answer:
Solution (-2, 7)
Step-by-step explanation:
2x + 3y = 17 (1)
5x + 6y = 32 (2)
Using elimination method
Multiply (-2) to the equation (1)
-4x - 6y = -34
Now you have 2 new equations
-4x - 6y = -34
5x + 6y = 32
----------------------------Add
x = -2
Substitute x = -2 into 2x + 3y = 17
2(-2) + 3y = 17
- 4 + 3y = 17
3y = 21
y = 7
Solution (-2, 7)
Answer:
table C
Step-by-step explanation:
The constant of proportionality k= y/x
table C shows constant proportionality :
90/9=140/14=240/24=10
