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
Reil [10]
3 years ago
12

Jena and matt, working together, can mow the lawn in 44 hours. working alone, matt takes four times as long as jena. how long do

es it take jena to mow the lawn alone?
Mathematics
1 answer:
madam [21]3 years ago
6 0
Let jena take x hours to mow the lawn on her own.-  then we can write the equation 

1/x + 1/4x = 1 / 44

44 + 11 = x  

x = 55

x takes 55 hours to mow the lawn
You might be interested in
Use the diagrams below to choose the statement below that is correct.
mamaluj [8]

Answer:

A has the largest surface area.

Step-by-step explanation:

Surface Area of A = 2(10*3.5) + 2(10*4) + 2(4*3.5)

= 70 + 80 + 28

= 178 in^2.

For B:

Area = 2(12*3.2) + 2(12*2.8) + 2(2.8*3.2)

= 76.8 + 67.2 + 17.92

= 161.92 in^2.

5 0
3 years ago
Courtney works at the local shoe store and receives $150 a week plus 3% of all sales over $1000. This week her sales were $3200.
schepotkina [342]

The equation you would use to find her earning for the week would be:

y=0.03(x-1000)+150

This would mean she made $66 from commissions and $216 total.

6 0
3 years ago
the triplex theater has 3 different movies tonight: bucket of fun, bozo the great, and pickle man. each movie has an early and l
serious [3.7K]
Bucket of fun. bozo the great. pickleman
/ \ / \ / \
day night day night day. night

theres three movie choices
5 0
3 years ago
Suppose you can somehow choose two people at random who took the SAT in 2014. A reminder that scores were Normally distributed w
Sindrei [870]

Answer:

22.29% probability that both of them scored above a 1520

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 1497, \sigma = 322

The first step to solve the question is find the probability that a student has of scoring above 1520, which is 1 subtracted by the pvalue of Z when X = 1520.

So

Z = \frac{X - \mu}{\sigma}

Z = \frac{1520 - 1497}{322}

Z = 0.07

Z = 0.07 has a pvalue of 0.5279

1 - 0.5279 = 0.4721

Each students has a 0.4721 probability of scoring above 1520.

What is the probability that both of them scored above a 1520?

Each students has a 0.4721 probability of scoring above 1520. So

P = 0.4721*0.4721 = 0.2229

22.29% probability that both of them scored above a 1520

8 0
2 years ago
Happy paws charges $19.00 plus $1.50 per hour to keep a dog during the day. Woof watchers charges $13.00 plus $2.75 per hour. Co
natta225 [31]
For paws charges $20.50 and woof watchers charge $15.75
6 0
3 years ago
Other questions:
  • Solve for the indicated variable. Include all of your work in your answer. Submit your solution. P = 3r + 2s; for s.
    14·1 answer
  • Packaging milk in cardboard containers is a way to prevent destruction of which vitamin by ultraviolet light?
    14·1 answer
  • Questions 1-3 40 points
    15·1 answer
  • Help please I do not get it
    6·1 answer
  • 1. Evaluate −5|x−1| when x=−8
    12·1 answer
  • 11) Krystal and Rob each improved their yards by planting hostas and ivy. They bought their
    12·1 answer
  • If AC = 2, CD = 6, and CE = 3, what is BC?
    10·2 answers
  • A camp counselor needs 12 bags of candy that each weigh 112 pounds. How many ounces of candy does the camp counselor need?
    10·2 answers
  • The density of water is 1 gram per cm^3. An object floats in water if its density is
    13·1 answer
  • If the graph of the second equation in the system passes through the points (-12, 20) and
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!