1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tangare [24]
3 years ago
12

Brock is training for a Crossfit competition. He began the training completing pull-ups and box jumps origanally, his training p

lan had him completing and box jumps at a ratio of 5:4 After two months of his training , he decided to focus on his leg strength and adjusted his ratio 2:7. If he completed 63 box jumps at the end of his training , how many pull-ups and hos box jumps at the of his training, how many pull-ups did he completed in the initial stage of training
Mathematics
1 answer:
siniylev [52]3 years ago
8 0

If the adjusted ratio was 2:7, then

2x is the number of pull-ups

and

7x is the number of box jumps.

You can state that since he completed 63 box jumps at the end of his training, then

7x=63,

x=9

and

2x=18.

The total number of exercises performed is 2x+9x=18+63=81.

As at start the ratio was 5:4, then

5y was the number of pull-ups

and

4y was the number of box jumps.

Therefore, 5y+4y=81,

9y=81,

y=9

and 5y=45, 4y=36.

Answer: Initially: 45 pull-ups and 36 box jumps. At the end: 18 pull-ups and 63 box jumps.

You might be interested in
Can I please have some help????
DedPeter [7]

Answer:

avn= -8 + (n-1)(-7)

Step-by-step explanation:

arithmetic sequence formula= avn= av1 + (n-1)d

av1= first number in the sequence

d= common difference

n= the number of the term to find

The common difference is -7 so d=-7 and you plug it into the equation. The first number in the sequence is -8 so av1.

There is no specific n to find so it remains n.

I hope this helps! Let me know if this helps.

8 0
2 years ago
Read 2 more answers
What’s the answer for IJG
Flauer [41]

Answer:

<u>∠IJG = 123° </u>

Step-by-step explanation:

Since AB║CD, EF ║GH, we can use the Corresponding Angles Postulate, for finding the following congruent angles:

∠IKL ≅ ∠EIJ and  ∠EIJ  ≅ ∠GJA

∠GJA and ∠IJG are supplementary, therefore:

∠GJA + ∠IJG = 180°

∠IJG = 180° - 57°

<u>∠IJG = 123°</u>

4 0
3 years ago
The populations of Cities A and B are 1.6 x 10^5 and 1,070,000​, respectively. The population of City C is twice the population
Semenov [28]

Answer:

13.375 times

Step-by-step explanation:

1,070,000 times 2=2,140,000. 2,140,000 divided by 160,000=13.375.

3 0
3 years ago
Use equivalent ratios to find unknown value plz halp!!!!​
iogann1982 [59]

Answer:

21

Step-by-step explanation:

It might be 21/30 , hope it helps though :)

7 0
3 years ago
Read 2 more answers
If a data value in a normal distribution has a negative z-score, which of the following must be true?
Tamiku [17]
<span>The data value must be less than the mean.</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • If D is the midpoint of the segment
    8·1 answer
  • How do you do this question please help me
    12·1 answer
  • Find the rectangle of largest area that can be inscribed in a semicircle of radius r, assuming that one side of the rectangle li
    13·1 answer
  • Y = -5x + 3<br> y = 8x – 23
    15·1 answer
  • PLEASE. WILL GIVE BRAINLIEST
    7·1 answer
  • Hey I need help on this question if you help me 333 envelopesuehwhhegehshdhdgsgsgsgdgdhsgshdhdhdhdhdhdhdhdjdhdhdhdhdhdhdhdhdhdhd
    7·1 answer
  • If f(x)=2x^2+3x-4, find 2f(x)
    9·1 answer
  • Pls help me with this problem
    10·1 answer
  • Help ASAP it should turn in in 10 mins​
    13·2 answers
  • Help<br>ques starts frm a rectangular garden​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!