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
Alekssandra [29.7K]
2 years ago
9

Use Order of Operations to simplify. 42 + 5[61 – (5x6)]

Mathematics
1 answer:
Dovator [93]2 years ago
6 0
First you would work on getting rid of the parentheses so you would do the 5 times 6 to get 30. Then you would subtract 61 - 30 to get 31. to get rid of the parentheses you would then multiply 31 and 5 to get 155 and finally you would add 155 and 42 together to get 197 as your answer.
Hope this helped
You might be interested in
A student solved 6x+4=2(x−8) in four steps as shown:
mr_godi [17]
The first thing you should do is solve the equation yourself.

1) Distribute the 2.  
6x + 4 = 2x – 16

2) Next, you'll want to get the x's on one side. So add -2x to both sides.
6x + 4 + -2x = 2x + -2x - 16
4x + 4 = -16

3) Now subtract 4 from both sides
4x + 4 – 4 = -16 – 4
4x = -12

4) Finally, divide both sides by 4
4x/4 = -12/4
x = –3

To solve this problem all you need to do is look back out you work, and figure out the correct solution. The answer the question is The student made an error in Step 1.

7 0
3 years ago
Someone help me out with this question please
storchak [24]

Answer: 9.1

Step-by-step explanation:

Add all of the numbers up and divide by 8

6 0
3 years ago
Read 2 more answers
Luke correctly graphs the fundamental period of the function f(x)=sinx.
aleksandrvk [35]

Answer:

Period is 2pi

Y- intercept is (0,0)

For points, use the last option

6 0
2 years ago
Read 2 more answers
What is -15=11-2t solved
scoray [572]
The answer would be 13
6 0
3 years ago
We are interested in the amount that students study per week. Suppose you collected the following data in hours {4.4, 5.2, 6.4,
olga nikolaevna [1]

Answer:

Step-by-step explanation:

Hello!

The objective is to estimate the average time a student studies per week.

A sample of 8 students was taken and the time they spent studying in one week was recorded.

4.4, 5.2, 6.4, 6.8, 7.1, 7.3, 8.3, 8.4

n= 8

X[bar]= ∑X/n= 53.9/8= 6.7375 ≅ 6.74

S²= 1/(n-1)*[∑X²-(∑X)²/n]= 1/7*[376.75-(53.9²)/8]= 1.94

S= 1.39

Assuming that the variable "weekly time a student spends studying" has a normal distribution, since the sample is small, the statistic to use to perform the estimation is the student's t, the formula for the interval is:

X[bar] ± t_{n-1;1-\alpha /2}* (S/√n)

t_{n-1;1-\alpha /2}= t_{7;0.975}= 2.365

6.74 ± 2.365 * (1.36/√8)

[5.6;7.88]

Using a confidence level of 95% you'd expect that the average time a student spends studying per week is contained by the interval [5.6;7.88]

I hope this helps!

3 0
3 years ago
Read 2 more answers
Other questions:
  • the sum of three consecutive number odd integers is 18 less than five times the middle number find the three integers
    11·1 answer
  • Which two fractions have a sum of - 7/24
    15·1 answer
  • And triangular pyramid and a triangular prism have congruent bases and the same height the triangular pyramid has a volume of 90
    9·1 answer
  • Please help, multiple choice
    14·1 answer
  • What is 10.4 divided by 5?
    12·1 answer
  • How many edges does a hexagonal prism have​
    15·2 answers
  • Subtract 6.1 and 51.24
    6·1 answer
  • The complex solutions of which equation have a real component of 4?
    7·2 answers
  • PLEASE HELP (TIMED TEST) WILL GIVE EXTRA POINTS
    8·2 answers
  • Find the range of the function y= 1/2 x + 3 when the domain is -2, 0, 2, 4
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!