Answer:
$2
Step-by-step explanation:
Sandy adds $4 to a certain amount of money she already has saved.
Let the amount she has saved be x.
=> x + 4
Kyle already has 10 times as much money as sandy has saved (10x) but then spends 14$ dollars of his savings.
=> 10x - 14
They both have the same amount of money now:
=> 10x - 14 = x + 4
To get x, collect like terms and simplify:
10x - x = 4 + 14
9x = 18
x = 18 / 9 = $2
This means that Sandy had already saved $2.
Answer:
22 times 4 1/2 divided by 2
Answer:
Step-by-step explanation:
we would like to integrate the following integration:
notice that you can simplify the integrand
recall that,
thus substitute:
remove parentheses:
factor out 2:
we can use algebraic identity i.e
a²-b²=(a+b)(a-b) to factor the denominator
reduce fraction:
distribute:
use sum integration formula:
recall integration rules:
and we of course have to add constant of integration
Answer : 35 brownies
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working:
3/5 = 21
1/5 = 21 / 3
1/5 = 7
5/5 = 7 x 5
1 (the amount of brownies she brought) = 35
Therefore, she brought 35 brownies