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
nlexa [21]
4 years ago
7

[(21+42)×3]+[4×(18+12)]=

Mathematics
2 answers:
alex41 [277]4 years ago
6 0
[(21+42)3] +[4(18+12)]
189+120
309
Olin [163]4 years ago
4 0
First you have to do the problem in the perenteces, so 21 + 42 = 63. Now we have to do 63 x 3 which is 189. We have to do the second one now so 18 + 12 is 30, and now we times that by 4, so know it is 120. Lastly we add 189 + 120 which gives us an answer of 309.

It is 309.

You might be interested in
What is the solution to the equation
djyliett [7]

h = 7 is the answer to the question
5 0
3 years ago
Read 2 more answers
Where is a major league ballpark in which the distance from home plate to the center-field fence and the height of the center fi
jonny [76]
Given:

A height of 2 feet above the ground and angle of elevation of 86 degrees. 

Assuming that the form of our problem is a right triangle, we can solve for the remaining angle:

180 - (90+86) = 4 degrees

The distance from the home plate to the centerfield is

2/sin 4 = x / sin 86

solve for x

x = 28.60 feet
  <span />
8 0
3 years ago
2-4a = 16<br><br> What is the solution
motikmotik
Answer:

a = -3.5

Explanation:

2 - 4a = 16

-4a = 14

a = -3.5
5 0
3 years ago
Read 2 more answers
Liam sarah and Emily share some money in the ratio 2:3:7 Emily got £80 more than liam how much money did sarah get
sergey [27]
Sarah got £48, Liam got £32, and Emily got £112
3 0
3 years ago
How do I do 2 root 20 - 3 root 5
Komok [63]
2√20=2((√4)(√5)=2((2)(√5)=4√5

now we have
4√5-3√5=1√5=√5
8 0
3 years ago
Other questions:
  • Mr. James is 4 times as old as his daughter. The difference in their ages is 36 years. Find their ages.
    11·1 answer
  • Prompt: What does Lincoln hope to gain by using the statement, "let us judge not, that we be not
    7·2 answers
  • Help pls!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    8·2 answers
  • Paul has 7 piles of sports cards. There are3 basketball. football. and4 baseball cards in each pile. How many total sports cards
    12·2 answers
  • How many wheels are on 27 cars?
    13·2 answers
  • Mary has 200ml of hand sanitizer that is 15% alcohol. She mixes it with 200ml of a
    6·1 answer
  • Exercises 1-3, tell which equation you would choose to solve for one of the variables. Explain.
    12·2 answers
  • PLEASE HELP PRE ALGEBRA EASY 10 POINTS
    8·1 answer
  • HELP ASAP (best answer will get marked BRAINELEST)<br> solve step-by-step for each Question
    10·1 answer
  • PLEASE HELP !!!!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!