I think she will need 3 cups of flour. B. If 2 cups make 20. Then 2 more cups would make 40. so i think it would be 3 cups. Which is in between 2 and 4. And 30 is in between 20 and 40.
I hope this will help you!!
X+y=17 solve for a variable and plug into the 2nd equation
(x+3)/y=1 also could be written as x+3=y
x=17-y
17-y+3=y combine and add y over to other side
20=2y
y=10
plug back in x+10=17
x=7
so the original fraction is 7/10
Answer:
9.75*1.2= 11.7min (time spent reading in science)
24.5*0.8=19.6min (time spent reading play)
19.6+11.7= 31.3min (total time spent reading)
A ×+By=c I think that is the answer
160+40+550+42.01=792.01 is the amount needed to pay. If you start with $16.83 and add $800=$816.83. Subtract the difference. The remaining checking account balance will be $24.82