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
larisa [96]
2 years ago
8

Teri incorrectly solved the system of equations below. Correctly identify the error Teri made. 2x - 10 y = -30 x - 5y = 20 Step

1: x - 5y = 20 x = 5y + 20 Step 2: 2(5y + 20) - 10 y = -30 10y + 40 - 10y = -30 40 = -30
Mathematics
1 answer:
umka21 [38]2 years ago
3 0

Answer:

See explanations below

Step-by-step explanation:

Given the system of equation

2x - 10 y = -30 ... 1

x - 5y = 20 ... 2

Step: From 2;

x = 20 + 5y ...3

Step 2: Substitute equation 3 into 1

2x - 10y = -30

2(5y+20) - 10y = -30

Open the bracket

10y + 40 - 10y = -30

10y - 10y + 40 = -30

0+40 = -30

40 = -30

The steps taken by Teri are correct all through. He didn't make any error whatsoever

You might be interested in
Please help me on this it’s due tomorrow:(((
BigorU [14]

Answer:

Bro

Step-by-step explanation:

sorry

7 0
2 years ago
Read 2 more answers
I have to turn that into the simplest form
zimovet [89]

5.006=5\frac{6}{1000} =5\frac{3}{500}...or...\frac{2,503}{500}

Hope this helps!

8 0
3 years ago
Read 2 more answers
The "off-peak" weekly average cost of hiring a caravan in Wales is 520. In July the average cost increases to 800. calculate the
Artemon [7]
For this case you can solve the problem by applying a simple rule of three in which we have
 520 ---> 100%
 800 ---> x

 Clearing x we have
 x = (800/520) * 100 = 154%
 the percentage increase in cost was
 154-100 = 54%
 answer
 the percentage increase in cost was 54%
8 0
3 years ago
Read 2 more answers
For t=2, 15t - 2t is equal to
weqwewe [10]

Answer:

26

Step-by-step explanation:

=15(2) - 2(2)

=30 - 4

=26

6 0
3 years ago
Please help and thank you
Akimi4 [234]

Answer:

Its B. Hope it helps! <3

5 0
3 years ago
Read 2 more answers
Other questions:
  • What are equal intervals?
    10·2 answers
  • I need help please ! I do not get this /:
    10·1 answer
  • Suppose r = 9 + 3s. What is r, if s = 6?
    15·2 answers
  • The circumstance of a circular painting is 15.7 feet. What is the radius of the painting. Use 3.14 for pi and do not round your
    7·1 answer
  • i need help with a math problem right now it says A car rental agency advertised renting a car for $23.95 per day and $0.25 per
    13·1 answer
  • Adam was packing up his toys he managed to squeeze 52 toys into a box if adam filled 92 boxes how many toys did he pack total
    13·1 answer
  • If a+b = 5, a³+b³+15ab=?​
    6·1 answer
  • 4 hours to 30 minutes
    12·2 answers
  • 5) IF...<br> 481 = 2<br> 708 = 3<br> 475 = 0<br> 849 = 3<br> 208 = ?
    12·1 answer
  • store A offers successive discounts of 10% one week and 20% the second week. store B offers a one-time discount of 25% the secon
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!