Answer:
x=−4/5 or x=−3
Step-by-step explanation:
Step 1: Factor left side of equation.
(5x+4)(x+3)=0
Step 2: Set factors equal to 0.
5x+4=0 or x+3=0
x=−4/5 or x=−3
<span>This is a 25% discount.
</span>
We can restate this problem as:
$13 is what percent of $52?
First, let's call the percent we are looking for "p" or <span>p%</span>.
"Percent" or "%" means "out of 100" or "per 100", Therefore p% can be written as <span>p100</span>.
When dealing with percents the word "of" means "times" or "to multiply".
Putting this all together we can write this equation and solve for p while keeping the equation balanced:
<span>$13=<span>p100</span>×$52</span>
<span>$13=<span><span>$52p</span>100</span></span>
<span>$13×<span>100<span>$52</span></span>=<span><span>$52p</span>100</span>×<span>100<span>$52</span></span></span>
<span><span><span>$1300</span><span>$52</span></span>=<span><span>$52p</span>100</span>×<span>100<span>$52</span></span></span>
<span><span><span>$1300</span><span>$52</span></span>=<span><span><span>$52</span>p</span>100</span>×<span>100<span>$52</span></span></span>
<span><span>130052</span>=<span>p</span></span>
<span>25=p</span>
Step-by-step explanation:
464.5cm³
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Answer:
9
Step-by-step explanation:
Given that:
Dimension of Original photo = 4 inches by 6 inches
Intended dimension of model = 3 feet by 4 1/2 feets
Converting from feets to inches :
1 foot = 12 inches
Therefore,
Intended dimension of model :
3 feets = (3 * 12) = 36 inches
by 4 1/2 feets = (4 1/2 * 12) = 54 inches
Hence, scale factor required :
36 /4 = 9
54 / 6 = 9
Scake factor = 9
Answer:
All the 3 expressions are equivalent.
Step-by-step explanation:
1/2 ( x + 4 )
= x/2 + 4/2
= x/2 + 2
x/2 + 2 is same as 2 + x/2