336
explanation:
percent. part
_______ = _____
100. whole
42. ?
____ = ____
100. 800
cross multiply
800×42=33,600
then divide by 100
33,600/100=336
Answer:
10%
Step-by-step explanation:
You can solve this equation by back-solving. Pick a random percent that you would think is close and convert it to decimal, then multiply it by the original price and subtract that from the original price.
1block=2cm
1cm=10mm
therefore 1block=2×10=20
1000÷20=50
=50blocks
w=15 no
w=21 yes
w=14 no
plz mark brainliest
- boys=5x
- girls=3x
5x+3x=32
8x=32
x=32:8
x=4
5×4=20 (boys)
3×4=12 (girls)
