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
ira [324]
3 years ago
14

The Escobar family and the Johnson family each used their sprinklers last month. The water output rate forthe Escobar family's s

prinkler was 20 gallons per hour. The water output rate for the Johnson family's sprinkler was40 gallons per hour. The families used their sprinklers for a combined total of 32 hours, resulting in a total wateroutput of 960 gallons. How many hours was each family’s sprinkler used?
Mathematics
1 answer:
DENIUS [597]3 years ago
3 0

Answer:

J = 32

E = 0

Step-by-step explanation:

E is the number of hours for the Escobar family

J is the number of hours for the Johnson family

E + J = 32

E * 20 + J * 30 = 960

Multiply the first equation by -20 so we can use elimination

-20 E -20 J = -640

Add this to the second equation

E * 20 + J * 30 = 960

-20 E -20 J = -640

---------------------------------

         10 J = 320

Divide by 10

J = 32

Now find E

E + J = 32

E  + 32 = 32

E = 0

You might be interested in
Just need help with B and C <br><br><br> 30 POINTS
saw5 [17]

Answer:

b) 6/7

c) 14

Step-by-step explanation:

b) Scale Factor = Red/(Red+Blue) = 8/(8+6) = 8/14 = 6/7.

c) x =  8+6 = 14.

EXTRA TIP: If you aren't sure, think about wheter these triangles are isosceles(from the diagram). Hope this helps!

4 0
2 years ago
Ms. Lapido bought a car and pay for it $20.000.At the end of 10 years the car has no value whatsoever. Assuming that the car is
Leviafan [203]

Answer:

A) the value of the car will be 13,333.34 after 3 years ( not sure )

B) the depreciation of the car will be 2222.22 per year ( not sure)

C)  i do not know

4 0
2 years ago
The assembly line that produces an electronic component of a missile system has historically resulted in a 2% defectiverate. a r
sattari [20]

<span>Defective rate can be expected to keep an eye on a Poisson distribution. Mean is equal to 800(0.02) = 16, Variance is 16, and so standard deviation is 4.
X = 800(0.04) = 32, Using normal approximation of the Poisson distribution Z1 = (32-16)/4 = 4.
P(greater than 4%) = P(Z>4) = 1 – 0.999968 = 0.000032, which implies that having such a defective rate is extremely unlikely.</span>

<span>If the defective rate in the random sample is 4 percent then it is very likely that the assembly line produces more than 2% defective rate now.</span>

3 0
3 years ago
Write 16 + 32 = as a product of two factors using GCF and the distributive property
N76 [4]

Answer:

16 (1+2)

Step-by-step explanation:

factors of 16: 1,2,4,8,16

factors of 32: 1,2,4,8,16,32

16 x 1 = 16

16 x 2 = 32

8 0
2 years ago
Find the area of the figure below
satela [25.4K]

Answer:

The total area is 300 ft^2

Step-by-step explanation:

First find  the area of the rectangle

A = l*w = 24*10 = 240

Then find the area of the triangle on the top

A = 1/2 bh

The base is 24 and the height is 15-10 = 5

A = 1/2 (24)*5 = 60

Add them together

240+60 = 300

The total area is 300 ft^2

7 0
3 years ago
Read 2 more answers
Other questions:
  • An engineer is comparing voltages for two types of batteries (K and Q) using a sample of 37 type K batteries and a sample of 58
    11·1 answer
  • <img src="https://tex.z-dn.net/?f=how%20%5C%3A%20can%20%5C%3A%20you%20%5C%3A%20use%20%5C%3A%20dimensional%20%5C%3A%20analysis%20
    12·2 answers
  • Choose the answer. 2. (1 pt) Frankie paid $11.75 for the movie ticket and $4.75 for popcorn and a drink. How much did Frankie sp
    11·1 answer
  • The area of a square is 144 square centimeters. Find the length of the diagonal. Write your answer in simplest radical form.
    10·1 answer
  • Here yall happy thanksgiving!
    6·1 answer
  • There are 6 spectral colors: red, orange, yellow, green, blue, and violet. Bees can only see 2/3 of these colors. How many of th
    14·1 answer
  • Somebody pls help me!!!
    5·2 answers
  • Easy question - giving brainly if correct AND WORK IS SHOWN.​
    6·2 answers
  • How much is a square mile
    13·1 answer
  • Find the distance from the point (1, 0, -2) to the origin.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!