Answer:
x = 23
Step-by-step explanation:
Δ ABC and Δ DEF are congruent by the SAS postulate, thus corresponding sides are congruent, that is
BC = EF, substitute values
x - 4 = 19 ( add 4 to both sides )
x = 23
Answer: Sally recieves £60 more than Megan
Step-by-step explanation:
Add the ratio together 1+3+2=6
£180 divided by 6 = 30
Megan gets 30
Sally gets 30x3=90
Tom gets 30x2=60 30:90:69
Step-by-step explanation:
it means 13 tables have 6 chairs
and 7 tables have 4 chairs
so
total chairs in the cafeteria= 13×6 + 4×7 = 78+28=106