Answer:
7
Step-by-step explanation:
You can spend about 3.54 per square ft.
In order to find this we will need to figure out how many square ft. there are exactly. We can do this by doing 20 x 12, which is 240. Now, to figure how much we could spend per square ft., we would have to do 850 / 240, which is(rounded) 3.54.
<u><em>The total number of red counters that are in the box is; 728 red counters</em></u>
- We are told that the box contains 1079 counters.
Let the number of white counters be x.
Let the number of red counters be y.
Let the number of black counters be z.
Thus;
z:x = 2:7
Thus; 2x/7 = z
Also, we are given;
x:y = 3:8
Thus;
8x/3 = y
- Since total number in the box is 1079,then;
x + y + z = 1079
x + (8x/3) + (2x/7) = 1079
Multiply through by 21 to get;
21x + 56x + 6x = 22659
83x = 22659
x = 22659/83
x = 273
2x/7 = z
Thus; z = 2 × 273/7
z = 78
8x/3 = y
y = 8 × 273/3
y = 728
273 white counters
728 red counters
78 black counters.
Read more at; brainly.com/question/11712611
Answer:
Required equation is 42 = 5 + 3.70d
Step-by-step explanation:
Emma took a taxi from the airport to her house. She paid a flat fee of $5 plus $3.70 per mile.
The fare came to $42
Flat fee = $5
Variable fee = $3.70 per miles
Total fare = $42
Let Emma traveled d miles
Total fare = Flat fee + variable fee of d miles
According to given info.
42 = 5 + 3.70d
Now we solve for d,
Therefore, d=10 miles
Thus, Required equation is 42 = 5 + 3.70d , d=10 miles
