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
kvv77 [185]
3 years ago
7

Evaluate 20-z when z=-12 please

Mathematics
1 answer:
WITCHER [35]3 years ago
3 0

answer is 8

Step-by-step explanation:

z=12

20-z= 20-12

=8

You might be interested in
How do I do standard deviation ?
Marianna [84]
<span>Work out the Mean (the simple average of the numbers)Then for each number: subtract the Mean and square the result.Then work out the mean of those squared differences.<span>Take the square root of that and we are done!</span></span>
6 0
3 years ago
Michael and Lindsey are saving money. Michael begins with $20 and saves $5 per week. Lindsey begins with no money, but saves $10
True [87]
Let
x----------> number of weeks
y----------> saved money

we now that

<span>Michael begins with $20 and saves $5 per week
so
y=20+5x------> equation 1

and
</span><span>Lindsey begins with no money, but saves $10 per week
</span><span>y=10x-------> equation 2

</span><span>the number of weeks it will take for Lindsey and Michael to save the same amount of money is when equation 1 is equals to equation 2
</span>
therefore
20+5x=10x------> 10x-5x=20------> 5x=20-----> x=20/5-----> x=4 weeks

the answer is 
4 weeks
3 0
3 years ago
A<br> __ +2≤6<br> 5<br><br> Please help
AlladinOne [14]

Answer:

a=3

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find the area. <br><br> A. 188 in.2<br> B. 278 in.2<br> C. 322 in.2<br> D. 250.5 in.2
agasfer [191]
A 188 inches .2 Because you have to run them all to the nearest five
8 0
3 years ago
Find the greatest common factor of 7 and 21.
sertanlavr [38]

Answer: 7

Step-by-step explanation:

Factors of 7 are, 1, and 7. The factors of 21 are, 1, 3, 7, and 21, making 7 the gcf.

6 0
3 years ago
Other questions:
  • How do you interpret algebraic expressions in terms of their context
    8·2 answers
  • Benjamin's credit card has an APR of 19%, calculated on the previous monthly balance, and a minimum payment of 2%, starting the
    9·1 answer
  • The triangular prism below has a base area of 9 cm and a height of 23 cm. What is the volume of the prism?
    10·2 answers
  • Given f(x) = 2* and g(x) = 2x + 1 evaluate (f?g)(o) and (g?f)(2).
    9·1 answer
  • Simplify:
    10·2 answers
  • - 2d - 29 = 10 a easy question for your guys points lol
    9·1 answer
  • Please help.<br> Algebra.
    6·1 answer
  • A tennis ball has a diameter of 2.7 inches. What is the approximate volume of the tennis ball
    7·1 answer
  • Plz answer....,.......................
    11·1 answer
  • There are 400 students at a sports camp. Two hundred students play soccer, 100 students play baseball, and 100 students play bas
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!