9514 1404 393
Answer:
A: x + y = 55; y - x = 25
B: 15 minutes running
C: no
Step-by-step explanation:
<h3>Part A:</h3>
The two equations relate to the total number of minutes, and to the difference specified in the problem statement.
x + y = 55 . . . . . . total time is 55 minutes
y = x + 25 . . . . . . dances 25 minutes longer
__
<h3>Part B:</h3>
We can substitute for y in the first equation to find the value of x, the time spent running.
x + (x +25) = 55
2x = 30 . . . . subtract 25
x = 15 . . . . . . divide by 2
Jackie spends 15 minutes running each day.
__
<h3>Part C:</h3>
The value of y from is found using the second equation:
y = x +25 = 15 +25 = 40
Jackie <u>will not spend 45 minutes dancing</u> if she meets the requirements on times.
Answer : 1⅖ft.²
<u>Given</u><u> </u><u>:</u><u>-</u>
- Print is 7/8 ft wide and 1⅗ ft long .
<u>To </u><u>Find</u><u> </u><u>:</u><u>-</u>
Here the length of the print is 1⅗ ft . So on converting this into improper fraction , we have ;
→ length = 1⅗ ft = (5*1+3)/5 ft = (5+3)/5ft = 8/5ft.
Also ,
→ breadth = 7/8ft .
We know that the area of a rectangle is ,
→ Area = length * breadth
On substituting the respective values,
→ Area = 8/5 ft. * 7/8ft
→ Area = 7/5 ft.²
After converting improper fraction into mixed fraction ,
→ Area = 1⅖ ft² .
<u>Henceforth</u><u> the</u><u> area</u><u> of</u><u> the</u><u> </u><u>print</u><u> </u><u>is </u><u>1</u><u>⅖</u><u>f</u><u>t</u><u>.</u><u>²</u><u> </u><u>.</u>
<em>I </em><em>hope</em><em> this</em><em> helps</em><em>.</em>
Answer:
9:22
Step-by-step explanation:
9 is the boys 13 is the girls
22 is the total
Answer:
1st pic) 17.8
2nd pic) 16.8
3rd pic) 9.1
4th pic) 13.5
Step-by-step explanation:
<u>1st pic:</u>
(write equation) Cos 27 (cos 27 = 0.89) = 
(new equation) 0. 89 = 
(multiply 20 on both sides) 0.89 x 20 =
x 20
(solve) 17.8 = x
<u>2nd pic:</u> 
(write equation) tan 40 (tan 40 = 0.84) = 
(new equation) 0.84 = 
(multiply 32 on both sides) 0.84 x 20 =
x 20
(solve) 16.8 = x
<u>3rd pic:</u> 
(write equation) cos 55 (cos 55 = 0.57) = 
(new equation) 0.57 = 
(multiply 16 on both sides) 0.57 x 16 =
x 16
(solve) 9.1 = x
<u>4th pic:</u> 
(write eqaution) tan 42 (tan 42 = 0.90) = 
(new equation) 0.90 = 
(multiply 15 on both sides) 0.90 x 15 =
x 15
(solve) 13.5 = x
Answer:
it should be 14,580 m^2
(the ^2 means squared btw)