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
Serjik [45]
3 years ago
7

Solve each equation mentally.

Mathematics
2 answers:
motikmotik3 years ago
7 0
16. 4 (9*4=36) 
17. 6 (6*11=66)
18. 8 (10*8=80)
19. 9 (9*5=45)
20. 48 (4*12=48)
21. 13 (13*2=26)



andreyandreev [35.5K]3 years ago
4 0
16.4
17.6
18.8
19.9
20.48
21.13
You might be interested in
Is it true that a continuous function that is never zero on an interval never changes sign on that​ interval? give reasons for y
Elden [556K]
<span>Yes it is true that a continuous function that is never zero on an interval never changes sign on that interval. This is because of ever important Intermediate Value Theorem.</span>
7 0
3 years ago
What is the area of a cirlcle that's 4cm ​
Elena-2011 [213]
If the radius of the circle is 4 than the area would be 50.27.

If you are saying that 4 is the diameter, than divide that by 2 to get the radius which is 2. The area for this would be 12.57.

I don’t know which one you mean but hope this helps :))
7 0
3 years ago
What is the area of this triangle A=bh/2 <br> A:17m2<br> B:30m2<br> C:60m2<br> D:120m2
adelina 88 [10]
Base = 5
height = 12

Area = (5*12)/2 = 30 m²
5 0
3 years ago
Nov 09, 17:58:28 AM
Marianna [84]
The percent discount is 30%.
If you multiply $32 by .30, you will get $9.60. That is the amount of the discount. If you subtract $9.60 from $32, you will get $22.40 which is what he paid before tax. Therefore the percent discount is 30%.
7 0
3 years ago
Find the ratio of a to b if 2a=3c and 12c=7b​
postnew [5]

Answer:

I think the answer is 1a : 14b

6 0
2 years ago
Other questions:
  • Plz help!!!
    13·1 answer
  • What is 2x/5 = 10<br> what is x
    12·2 answers
  • What is 25%as a fractin its lowest term​
    10·1 answer
  • When three pipes fill a pool, they can finish in 12 hours. Two of the pipes can finish in 18 hours if they are working together.
    7·1 answer
  • Is this question a statistical question Which student spends the most time playing musical instruments? explain why or why not
    14·1 answer
  • Write an inequality to represent the graph. <br><br>y ≤ 4x − 2<br> y 4x − 2
    15·1 answer
  • Using eight eights and addition only, can you make 1000?
    12·1 answer
  • Which equation represents a proportional relationship between x and y values
    15·1 answer
  • Amy needs to estimate how many students at her school like online testing. She needs to create a random sample of students. How
    5·2 answers
  • Mrs.Merson is selling her car. her research shows that her car has a current value of 5,500 which is 55% percent of the amount p
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!