Answer:
(D) is the best explanation
Step-by-step explanation:
The total number of students is 158 + 139 = 297. This number can be rewritten as ...
297 = 37 × 8 + 1
That is, if there were 37 chaperones, 1 student would remain without a chaperone. That means the number of chaperones must be increased by 1 to 38. This is best explained by choice D.
Answer:
3
Step-by-step explanation:
S is a point on line segment RT.
So RS+ST=RT.
(7y-1)+(y+5)=28
Combine like terms:
8y+4=28
Subtract 4 on both sides:
8y=24
Divide both sides by 8:
y=3
Raul uses 998 grams of fruits.
This can be solved by converting 48,000 milligrams to grams. We do this by dividing by 1000. We get 48g. Then, we convert 0.5kg to grams by multiplying by 1000. We get 500g
It’s an acute angle but need help with what?
Answer:
10 rows with 6 passengers per row
Step-by-step explanation:
Let x be the number of rows and y the number of passengers per row.
Then we can interpret the story as the following two equations:
xy=60
(x+2)(y-1)=60
Solving these two equations:
y=60/x
(x+2)(60/x-1)=60 (substitute y)
60 - x + 120/x - 2 = 60 (multiply by -x)
x² + 2x - 120 = 0 (factor)
(x-10)(x+12) = 0
x = 10
y = 60/10 = 6
and indeed 10 * 6 = 60 and also 12 * 5 = 60
