Answer:
-2
Step-by-step explanation:
7x-21-10x+20=5
7x-10x-1=5
-3x=5+1
x=-6/3
x=-2
Answer:
- x = 10
- B. 3/7
Step-by-step explanation:
1. (x - 2)/ 4 - (3x + 5)/7 = - 3
7(x -2) -4(3x +5) = -84 . . . . . . . multiply by 28
7x -14 -12x -20 = -84 . . . . . . . . eliminate parentheses
-5x -34 = -84 . . . . . . . . . . . . . . collect terms
-5x = -50 . . . . . . . . add 34
x = 10 . . . . . . . . . . . divide by -5
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2. 1/(1 + 1/(1 - 1/x)) = 4
1 = 4(1 +1/(1 -1/x)) . . . . multiply by the denominator
-3 = 4/(1 -1/x) . . . . . . . eliminate outer parentheses, subtract 4
-3(1 -1/x) = 4 . . . . . . . multiply by the denominator
-3 +3/x = 4 . . . . . . . . eliminate parentheses
3/x = 7 . . . . . . . . . . . add 3
x = 3/7 . . . . . . . . . . . multiply by x/7
Answer:
a. 80g fish
b. 200g butter
Step-by-step explanation:
a. you have to divide it by 3 because 2 is 1/3 of 6 so 240/3 = 80g of fish.
b. multiply by 2.5 because 15 is 2.5 times 6 so 80*2.5=200g of butter.
111×4 would exactly be 444 very simple
Hope this helps :)
Answer:
$3.38
Step-by-step explanation:
We know each jar is $2.19 and that two of them are purchased, so 2*2.19 = $4.38
We then know there is a coupon of $1 off 2 jars, the amount of jars purchased
So the total after the coupon is $1 less, $3.38
