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den301095 [7]
3 years ago
9

Michael can clean the store in 6 hours. Together him and Lebron can clean the same store in 2 hours. How long would it take for

Lebron to clean the store alone?
Mathematics
1 answer:
Contact [7]3 years ago
3 0

Answer:

4 hours.

Step-by-step explanation:

The difference between 6 and 2 is 4.

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At noon, the shadow of a flagpole is 10 feet long. At the same time, the shadow of a 140-foot tall building is 60 feet long. Wha
Free_Kalibri [48]
10=2x5
60=2x2x3x5

2x2x5x3=60

i think to do this you need lcm but im not sure

6 0
3 years ago
What is the value of f(7)
kkurt [141]
F(7) means f(x) when x = 7. The x is replaced with 7.

So we'll replace every x with 7 to go from x = 7 to 3-x = 3-7 = -4

Put another way
f(x) = 3-x
f(7) = 3-7
f(7) = -4

Answer: -4
8 0
3 years ago
Read 2 more answers
johns dinner costs $52.30. Sales tax is 6.5% and he wants to leave a 20% tip for the waitress. what is the total cost for johns
Tasya [4]

Answer:

The total cost for john's meal would be $66.84

Step-by-step explanation:

6.5% of 52.30 = 3.3995

52.30 plus 3.3995 = 55.6995

20% of 55.6995 = 11.14$

55.6995 + 11.14 = $66.84

3 0
2 years ago
The ratio of boys to girls in a group is 5:1. If there are 60 more boys than girls, work out how many people there are in total
REY [17]

Answer:

Step-by-step explanation:

5+1=6

5-1=4

4/6 = 60

6/6 = ?

6/6 x 60 x 6/4

= 75 people

4 0
3 years ago
a trapezoid has base lengths of 6 and 15 centimeters with an area of 136.5 square centimeters. What is the height of the trapezo
MrRa [10]
•*Ok first let me show you the formula for the Area of the trapezoid.
A=a+b/2 h.(I will be using the letter x for the multiplication sign)
 
*And here is the formula to find the height of a trapezoid
h=2 x A/a+b (2 times the Area over base "a" plus base "b")


*We need to plug in the numbers: h = 2 x 136.5/6+15
*Next, we add the two bases to get 21: 6+15=21 (h=2 x 136.5)  
*Then, divide the total of the two bases (21) from the area to get 6.5: 136.5/21-6.5
*Finally we multiply 2 by 6.5: 2 x 6.5= 13
The height if this trapezoid is 13.

Hope this helps you ☺
3 0
3 years ago
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