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Talja [164]
3 years ago
9

Aiko jump rope for an amazing 20 min she stopped at 8:05 when did she start

Mathematics
2 answers:
Scrat [10]3 years ago
6 0
Aiko jump roped for 20 minutes before stopping at 8:05. Just count 20 minutes back in order to see when she started.

8:05 - 20 minutes = 7:45
WINSTONCH [101]3 years ago
6 0
7:45 , I believe. 8:00 minus 15 min. equals 7:45      
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Sine, cosine, and tangent to calculate the height of the buildings in the diagram below.
DiKsa [7]

Answer: Around 68.0858 m

Step-by-step explanation:

  • Set the height of 37°-53°-90° triangle as x
  • Set the height of 50°-40°-90° triangle as y
  • The horizontal side both triangles share = 35

To find x                            To find y  

tan(37)=\frac{x}{35} \\\\35tan(37)=x\\\\x=26.37439...                     tan(50)=\frac{y}{35} \\\\35tan(50)=y\\\\y=41.7113757...

To find the height of the building, add the x-value and y-value:

x+y=26.3744+41.7114=68.0858  

<em>I hope this is correct o_o</em>

7 0
3 years ago
A total of 192 units is planned, and the number of family units (2 and 3 bedroom townhouses) will equal to the number of 1 bedro
algol13

Answer:

96 one bedroom homes

64 two bedroom homes

32 three bedroom homes

Step-by-step explanation:

If x is the number of 1 bedroom homes, y is the number of 2 bedroom homes, and z is the number of 3 bedroom homes:

x + y + z = 192

x = y + z

x = 3z

Solve the system of equations using substitution or elimination.  Using substitution:

x + x = 192

2x = 192

x = 96

z = x / 3

z = 32

y = x − z

y = 64

3 0
3 years ago
Issac put $5 in a shoe box every day for the months of april, may, and june. He then spent 75% of the money on baseball cards. H
igor_vitrenko [27]
As of 2021:
April-$150
May-$155
June-$150
Total-$455
Spent 75%=455/100x75
=341.25
455-341.25=$113.75
Round off to 3sf: $114
Have a good day
3 0
3 years ago
In the proportion 1/z = 4/5/8 which number os equal to z in the proportion
kobusy [5.1K]

I think it’s -156.250771950772

6 0
3 years ago
1.What is the solution to the system of equations?
Ludmilka [50]
1. x=4, y=0
3. x=2.6666, y=0.3333
8 0
3 years ago
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