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
pantera1 [17]
3 years ago
8

Simplify the expression 53 + 3(5 − 3). 137 131 27 21

Mathematics
1 answer:
Paul [167]3 years ago
7 0
5-3 is 2 multiply that by 3 and you get 6 add that to 53 and you get 59... using PEMDAS
You might be interested in
El administrador de una cafetería sabe que vende diariamente 50 litros de jugo mixto. Para elaborar este jugo se emplean dos pre
Strike441 [17]

Answer:

<em>El administrador debe usar 37.5 litros de jugo al 5% y 12.5 litros de jugo al 25%.</em>

Step-by-step explanation:

<u>Sistemas de Ecuaciones</u>

Llamamos:

x = litros de jugo al 5% natural

y = litros de jugo al 25% natural

El administrador de la cafetería desea hacer 50 litros de jugo, luego:

x + y = 50                   [1]

Esos 50 litros de jugo deben tener 10% de jugo natural. Como cada parte de x aporta 5% y cada parte de y aporta 25%:

5x + 25y = 10*50 = 500

Dividimos entre 5:

x + 5y = 100             [2]

Restamos [2] menos [1]:

4y = 50

y = 50/4 = 12.5

De [1] tenemos que:

x = 50 - y = 50 - 12.5 = 37.5

El administrador debe usar 37.5 litros de jugo al 5% y 12.5 litros de jugo al 25%.

5 0
3 years ago
The probability that it will snow on the last day of January is 85%. If the probability remains the same of the first eight day
MrRa [10]

Answer:

Here, we have:

P(5 days snow in this 8 days) = 8C5 x (0.85)^5 x (1 - 0.85)^3 = 0.084

P(6 days snow in this 8 days) = 8C6 x (0.85)^6 x (1 - 0.85)^2 = 0.238

P(7 days snow in this 8 days) = 8C7 x (0.85)^7  x (1 - 0.85)^1  = 0.385

P(8 days snow in this 8 days) = 8C8 x (0.85)^8 x (1 - 0.85)^0 = 0.272

Add up those above, then the probability that it will snow AT LEAST five of those days in February:

P = 0.084+ 0.238 + 0. 385 + 0.272 = 0.979

Hope this helps!

:)

5 0
3 years ago
Danielle’s chemistry professor has a complicated grading system. Each lab counts once and each test counts as two labs. At the e
Murrr4er [49]

Answer:

92

Step-by-step explanation:

Lab Scores are 84, 81, and 93

Test Scores are 89 and 94

Each lab counts once and each test counts as two labs. At the end of the semester there is a final lab that counts as three regular labs.

Total Number of Labs= (3X1)+(2X2)+(1X3) =3+4+3 =10

To recieve an A(90), the average of her scores must be 90.

Let her final lab score =b

Refer to the attached diagram

Total Score=624+3b

For her average =90

\frac{624+3b}{10}=90

Cross multiplying

624+3b =90 X 10

624+3b =900

3b =900-624

3b =276

Dividing both sides by 3

b= 92

She must score 92 in her final lab to receive an A.

6 0
3 years ago
Which would be the best name for a function that takes the time of day and returns the numbers of coffee sold at a coffee shop?
konstantin123 [22]

Answer:

Coffee(time)

Step-by-step explanation:

A function's output variable will be:

output(input)

So we need to find the input variable and the output variable.

We know that when the time of day changes, we get a certain amount of coffee sold. This means that the amount of coffee sold is directly influenced by the time of day.

The time of day then becomes our input as the coffee sold relies on that number.

That leaves coffee sold as our output!

So the best name for a function in this scenario is Coffee(time).

Hope this helped!

3 0
3 years ago
Is 5 and 45/9 a rational number
Inga [223]

Answer:

Yes

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Complete the statement with &lt;, &gt;, or =.<br><br> 9/7 _1
    10·1 answer
  • Question number 1 pls
    13·2 answers
  • Carl and Florence Lyles have the option of investing their $20,000 in a four-year CD with 5.15% interest compounded annually, 5%
    5·1 answer
  • 8. A candle is 4 inches tall and burns at the rate of 0.6 inch per hour. If the height of the candle after x hours is 1.5 inches
    6·1 answer
  • Danielle owns a vacation cottage. during the current year, she rented it for $1,500 for 48 days, and lived in it for 12 days. ho
    12·1 answer
  • Which type of triangle will always have a perpendicular bisector that is also an angle bisector?
    9·1 answer
  • WILL GIVE BRAINLIEST!!!! A teacher wrote the equation 3y + 12 = 6x on the board. For what value of b would the additional equati
    17·2 answers
  • How many equal line segments are needed to make a line of 30 treianges
    11·1 answer
  • Solve this for me please.
    14·1 answer
  • Morgan is designing a rectangular quilt. The quilt will be 1 3/5m wide and will have a an area of 6 m2. How long is the quilt?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!