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
Andrews [41]
3 years ago
8

PLS HELP WILL MARK YOU BRAINLIEST, NO FAKE ANSWERS!!

Mathematics
1 answer:
Makovka662 [10]3 years ago
3 0

Answer:

1. if x + 5 = 12, then x = 7

:Subtraction property of equality

2. If x + y = 20, and y = 5, then x + 5 = 20.

<u>:Substitution property of equality</u>

3. If 2x3 = 11, then 11 = 2x - 3.

<u>:Symmetric property of equality</u>

You might be interested in
How many degrees does the hour hand of a clock turn between 3p.m and 7:30p.m
sergeinik [125]
It turns 4 times because 3 x 4 = 7

give thanx plz

8 0
3 years ago
Read 2 more answers
Find the unit rate kenny reads 5/8 pages in 2/3 minutes
Cerrena [4.2K]
.9375 pages / 1 minute

or 15/16 pages for every 16/16 minute.
4 0
3 years ago
Suppose that Y varies directly with X andY equals 12 when X equals -2 what is X when Y equals -6
VLD [36.1K]

Answer:

x=1

Step-by-step explanation:

A direct variation equation has the following format:

y=kx

Where k is a constant.

We know that y is 12 when x is -2. Thus, substitute:

12=-2k

Divide both sides by -2:

k=-6

So, our direct variation equations is:

y=-6x

To find what x is when y equals -6, substitute in -6 for y:

-6=-6x

Divide both sides by -6:

x=1

So, our answer is 1 :)

4 0
3 years ago
If 9x²+Px+25 is a perfect square, then find the value of P​
kvv77 [185]
30 is the value of P
Steps:
A perfect square follows the pattern a^2+2ab+b^2\\\boxed{a=3,b=5}\\\boxed{2ab=30}
8 0
3 years ago
Read 2 more answers
True or False:
DIA [1.3K]
True. If you're just changing the form, yes. But remember when you change one side of an equation, you must change the other in the same way.
7 0
3 years ago
Read 2 more answers
Other questions:
  • HELP FAST BUT BE CORRECT(:
    5·1 answer
  • So for line of best fit, I got y=1.72x+73.35
    6·1 answer
  • You need to estimate how many employees you need to hire to clean a building. Each employee can clean 14
    11·1 answer
  • Why is -10+(-10)=0 wrong
    8·2 answers
  • Evaulate and solve for the variable !<br><br> -2x + 3x - 5 = 6 - 21
    6·1 answer
  • What does &lt;1 equal <br><br> helppppo
    7·2 answers
  • 1.7x0.825<br> 0.24x3.3<br><br> Pls help thx
    14·2 answers
  • What is the gradient of the blue line? ​
    14·2 answers
  • 7. Matthew drove 350 miles on 10 gallons of gasoline. How many miles per gallon does
    15·1 answer
  • Let h(x)=-1/3x+2. Find -4h(9)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!