Answer: 12
Step-by-step explanation:
Since they are similar, the ratio of corresponding sides is constant
cross multiply
21x = 252
x = 12
Answer:
Step-by-step explanation:
Distributive Law:The distributive Property says that multiplying a number by a group of numbers added together is the same as doing each multiplication separately.
a×(b+c)= a×b+a×c
commutative property: Commutative property says that we can swap numbers over and still get the same answer.
p×q=q×p
∴d( 10+20)
=d×10+d×20 [using distributive property]
=d×10+20×d [ using commutative property]
When you're looking for the percent markup, you subtract the old price from the new price ($70.20-$65=$5.20). Then you put the difference over the original price ($5.20/$65) and multiply it by 100. Your answer is 8% markup.
3y - yz = 2z
First separate y from 3y - yz = 2z
3y - yz is the same as y * (3 - z) so...
y (3 - z) = 2z
Now divide both sides by (3 - z)
y = 2z / (3 - z)
The answer is y = 2z / (3 - z), the answer you stated is correct except at the end, it isn't - 2, but - z, and also you should include parenthesis around it. Found this helpful? Give it a Brainiest reward if so.
Answer: 5.8% = 0.058 in decimal form.
Step-by-step explanation: