Answer:
31 
Step-by-step explanation:
First type of clay required 3 cups of flour per batch 
She made 5 batches 
5 * 3 = 15 
So she used 15 cups of flour for the first type of clay 
Second kind of clay required 4 cups of flour per batches 
She made 4 batches 
4 * 4 = 16 
So she used 16 cups of flour for the second type of clay 
we now add the total number of cups of flour used for each type of clay 
16 + 15 = 31
She used a total of 31 cups of flour 
 
        
             
        
        
        
Answer:
Read below.
Step-by-step explanation:
If you include going back home, then its 
3710 miles × 5 days = 
<u>18,550 miles</u>
If you don't include going back home, then it's 
3710 miles ÷ 2 × 5 days = 
1855 miles × 5 days = 
<u>9,275 miles</u>
 
        
             
        
        
        
Answer:
112 km/h
125 km/hr
Step-by-step explanation:
Distance = time * speed
Distance  = distance train 1 + distance train 2
474 = 2(s) + 2(s + 13)
Distribute
474 = 2s + 2s + 26
Combine like terms
474 = 4s + 26
Subtract 26 from both sides
448 = 4s
Divide both sides by 4
112 = s
s = 112 km/h
s + 13 = 125 km/hr
 
        
             
        
        
        
Answer:
39 feet
Step-by-step explanation:
From the question;
let length of ladder =x feet
height of ladder will be=x-3 feet
ground distance of ladder bottom to building=15 feet
Applying Pythagorean relation
a²+b²=c²
where a=15 feet b=x-3 feet and c=x feet thus
x²-15²=(x-3)²
x²-225=x²-6x+9
collect like term
x²-x²-225-9=-6x
-234= -6x
x= 39 feet length of ladder
distance from ground to top of ladder= 39-3=36 feet