25x/45=-65
25x=2925
x=117
I wasn't sure if you wanted a solution
Answer: She bought 68 books.
Step-by-step explanation:
Subtract 31 from 99 to find the difference! The difference tells us how many books she bought at the yard sale.
Answer:
that's the answer
Step-by-step explanation:
for the next time, dont post you derivative questions on brainly, there is a lot of websites that can solve this for you with steps.
Answer:
70
Step-by-step explanation:
to solve : start wit the inside brackets first
10 [25-{8-6 (16-13)}÷5 start 16-3
10[25-{8-6(3)}÷5 then multiply 6 and 3
10[25-{8-18}]÷5 then subtract 8-18
10[25-(-10)]÷5
10[25+10)÷5 add numbers inside brackets
10×35÷5=70 multiply and divide
Answer:let f be the female costumes and m be the male costumes:
3f + 4m = 48
3f + 2m = 36
solve simultaneous equations
2m = 12
male = 6 metres
sub vale back in
3f + 2m = 36
3f + (2×6) = 36
3f + 12 = 36
3f = 24
f = 8 metres
each female costume requires 8 metres of fabric and every male costume requires 6 metres of fabric.
Step-by-step explanation: