70% off means she only paid 30% so if x = original price,
54/x = 30/100.
Cross multiply
30x = 5400 so divide by 30
x = $180
Answer:
Length of perpendicular by pythagoras theorem :
P² = H² - B²
P² = 3² - 1²
P² = 9 - 1
P² = 8
P = 2√2
Step-by-step explanation:
Hello!
You read scientific notation by moving the decimal that amount of spaces next the the 10
1.263 * 10^3
You move the decimal over 3 places
1.263 * 10^3 = 1263
The answer is 1.263 * 10^3
Hope this helps!
Answer:
It will take him 24 days to have Rs 60 in hand.
Step-by-step explanation:
A man earns Rs 20 on first day and spends Rs 15 on next day. He again earns rs 20 on third day and spends Rs 15 on fourth day. It means that in 2 days, the man saves Rs 5, in 4 days, he saves 5 + 5 = Rs 10. On the sixth day,he would be having 5+5+5 = Rs15 and on the eighth day, he would be having 5+5+5+5 = Rs 20
If he continues to save in this way, the number if days it will take him to save Rs 60 would be
(60×2)/5 = 24
Answer:
baguettes are b = $0.80
rolls are r = $0.30
Step-by-step explanation:
1b + 4r = 2
3b + 2r = 3 step 1 when we need to balance and make one the same
6b + 4r = 6 step 2 when both equations must have 1 same value ie) 4r we take 2r and x2 to all values on that same equation.
6b + 4r = 6
-
1b + 4r = 2 step 3 when both equations show add we subtract them
5b = 4
b = 4/5
b = 0.8 b = 0.8 = 4/5 step 4 when we find x we plug in for x in this case we found b and plug in for b
1(0.8) + 4r = 2
0.8 + 4r = 2
4r = 2 - 0.8
4r = 1.2
r = 1.2 /4
r = 0.3
