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
VLD [36.1K]
3 years ago
14

Find the value of 7 Y if 3 bracket Y - 1 bracket is equal 21​

Mathematics
1 answer:
lawyer [7]3 years ago
8 0

Answer:

7y = 56

Step-by-step explanation:

3(y - 1) = 21

Divide 3 on both sides:

y - 1 = 7

Add 1 to both sides:

y = 8

Multiply by 7 on both sides:

7y = 56

You might be interested in
a rectangular prism 1/4 centimeter long, 4 centimeters wide, and 1/2 centimeter high. What is the volume, in cubic centimeters,
Hoochie [10]

Answer:

0.5cm^3

Step-by-step explanation:

volume of rectangular prism= length x width x height

1/4cm x 1/2cm x 4cm =

0.25cm x 0.5cm x 4cm =

0.5cm^3

7 0
3 years ago
Identify whether the following
erik [133]
It opens downwards so it looks like this “n”. That is because a in the formula is a negative number in this situation
6 0
3 years ago
4 / 3 is equal to 12 / k<br> What does k equal?
Natali5045456 [20]

Answer:

k=9

Step-by-step explanation:

4/3 = 8/6 = 12/9

8 0
3 years ago
Read 2 more answers
Last one - Thank you an advance :)
Ivan
Answers:
a. Given
b. Transitive property of congruence
c. Vertical angles are congruent
d. Transitive property of congruence

Let me know if you need any clarification as to how I got those answers. They should be self-explanatory but I'm happy to clarify further if needed. 

5 0
3 years ago
Read 2 more answers
Determine the factors of 3x2 + 10x − 8. (Which is the right answer?)
VMariaS [17]

ANSWER

(3x  - 2)(x + 4)

EXPLANATION

The given quadratic trinomial is

3 {x}^{2}  + 10x - 8

Comparing to the general quadratic trinomial:

a{x}^{2}  + bx  + c

We have a=1, b=10 and c=-8

ac =  3  \times  - 8 = - 24

The factors of -24 that adds up to 10 are -2 and 12.

We split the middle term to obtain;

3 {x}^{2}   + 12x   - 2x- 8

Factor;

3x(x+ 4)  -  2(x + 4)

Factor further;

(3x  - 2)(x + 4)

The last option is correct.

4 0
3 years ago
Other questions:
  • PLEASE HELP AND SHOW WORK!! i'm terrible, literally terrible at math, just explain it to me, please ? i need both x and y!
    11·1 answer
  • Quadratic Equations of the form ax²+ b×+ c=0<br> ײ+3×-54=0 ?
    8·1 answer
  • Lana had 8 4/6 cups of flour. If she used 6 1/6 cups of flour, how much flour<br> did she have left?
    15·1 answer
  • A company policy requires that, for every 40 employees, there must be 3 supervisors. If the are 285 supervisors at the company h
    11·1 answer
  • Which statement must be true?
    6·1 answer
  • Perpendicular Vectors:
    5·1 answer
  • When checking lightbulbs, a salesclerk found that 15% of the 680 he checked were defective. How many of the lightbulbs were foun
    8·2 answers
  • Pls help me i will apprcieate it. Giving you brainlist ;)
    10·1 answer
  • Please help me on both?!?
    7·1 answer
  • Each sheep has 4 legs and each chicken has 2 legs.if a farm boy counts 50 heads and 130 feet, how many sheep are there
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!