answer.
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
Lelu [443]
2 years ago
8

The track team is trying to reduce their time for a relay race. First they reduce their time by 2.1 minutes. Then they are able

to reduce that time by 1/10. If their final time is 3.96 minutes, what was their beginning time?
What was the track teams initial relay time in minutes?
Mathematics
1 answer:
klemol [59]2 years ago
3 0
Answer: 15.7 minutes

Step-by-step explanation:

Let x be the time in the beginning (in minutes).

Given: The track team is trying to reduce their time for a relay race.

First they reduce their time by 2.1 minutes.

Then they are able to reduce that time by 10

If their final time is 3.96 minutes, then

x-t1-t2= 3.6
x= 3.6+ t1+ t2
x= 3.6+ 2.1+ 10
x= 15.7

Hence, their beginning time was 15.7 minutes.
You might be interested in
Q#1:The volume of a cube is 46656 cubic metres.Find the length of each side?
Lady_Fox [76]

Answer:

Step-by-step explanation:

1) To find the cube root of a number prime factorize

46656 = 2*2*2*2*2*2 * 3 * 3 * 3 * 3 * 3 * 3

\sqrt[3]{46656}=\sqrt[3]{2*2*2*2*2*2*3*3*3*3*3*3}  =2*2*3*3 = 36

Length of each side = 36 m

Q) i) -512 = (-8) * (-8)*(-8)

-512 is a cube number

v) -17576 = (-26) * (-26)*(-26)

        -17576 is cube number

3 0
1 year ago
Anna is an avid reader. Her generous grandparents gave her money for her birthday, and she decided to spend at most $150.00 on b
Effectus [21]

Answer:

The solutions for 3 questions are explained one after the other below.

Step-by-step explanation:

1).Let x be the number of paperback books that she buys,  y be the number of hardback books that she buys.

for the first condition, i.e, she has decided to spend at most $150.00 on books,the required inequality will be :

8x+12y\leq 150

for the second condition , i.e, she wants to purchase at least 12 books,

the required inequality will be:

x+y\geq 12

2). the graph is in the attachment..

3). x,y are the two required solutions. where,

x =number of paperback books she buys.

y=number of hardback books she buys.

4 0
1 year ago
Read 2 more answers
Carson is a high school student with two part-time jobs. He earns $6 per hour for babysitting, and he earns $8 per hour doing cl
pickupchik [31]

Answer:

Step-by-step explanation:

7 0
1 year ago
Read 2 more answers
Nakita rode her skateboard at an average speed of 8.8 feet per second for 0.2 miles. She wants to calculate how long it took her
timama [110]

Answer: 2\ minutes

Step-by-step explanation:

We know that:

d=rt

Where "d" is distance, "r" is rate and "t" is time.

Solved for the time "t":

t=\frac{d}{r}

The first step is to convert the distance from miles to feet.

Since 1\ mile=5,280\ feet, we get:

d=(0.2\ mi)(\frac{5,280\ ft}{1\ mi})\\\\d=1,056\ ft

Knowing that:

r=8.8\ \frac{ft}{s}

We can substitute values into t=\frac{d}{r} in order to find the time in seconds:

t=\frac{1,056\ ft}{8.8\ \frac{ft}{s}}\\\\t=120\ s

Since:

1\ minute = 60\ seconds

The time in minutes is:

t=(120\ s)(\frac{1\ min}{60\ s})\\\\t=2\ min

7 0
2 years ago
Match the expression with its name. 10x2 – 5x + 10
puteri [66]

Answer:

Step-by-step explanation:

quadratic trinomial :  YES.  Three terms, 2nd order polynomial.

cubic monomial:  NO; this is neither a cubic nor a monomial (1 term).

not a polynomial :  NOT true; this is definitely a polynomial.

fourth-degree binomial:   NO; it's a second-degree trinomial.

5 0
2 years ago
Other questions:
  • Ahmed doubled his savings, then deposited another hundred dollars. Let s represent the amount he originally had in savings. Whic
    15·2 answers
  • 2 inches 3 inches Pivot. If 60 lbs. of force must be applied to the valve for it to open, how much upward force must push rod X
    15·1 answer
  • A board game is played as follows: a number cube numbered 1 to 6 is rolled. If the number 1 comes up, you get nothing. If the nu
    12·2 answers
  • The Rockville Employment Agency just placed Howard Jacobson in a job as a junior pharmacist. The job pays $51.2k. The agency fee
    8·1 answer
  • Wang Hao wants to spend at most $15 on dairy products. Each liter of goat milk costs $2.40 and each liter of cow's milk costs $1
    5·2 answers
  • Find the p​-value in a test of the claim that the mean College Algebra final exam score of engineering majors equal to​ 88, give
    7·1 answer
  • Suppose bug A lands on the end of the blade farthest from the pivot. Assume the wiper turns through an angle of 120°. In one cyc
    12·1 answer
  • Which table shows exponential decay? A 2-column table has 4 rows. The first column is labeled x with entries 1, 2, 3, 4. The sec
    6·2 answers
  • Write the verbal sentence as an equation. let y represent the number
    6·1 answer
  • A town has two shopping malls. A survey conducted on the shopping preferences of the town's residents showed that 62% of the res
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!