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
AnnZ [28]
2 years ago
14

Find the mistake: two-step equations

Mathematics
2 answers:
kirill [66]2 years ago
8 0

Answer:

Ling did not make a mistake.

Step-by-step explanation:

\bf -2q+11=-32

\bf -2q=-43 (Step 1)

\bf q=21.5 (Step 2)

First step, Ling subtracted 11 from both sides which's correct.

Then she divided each side of the equation by -2. correct*

Hence, Ling didn't make a mistake.

_____________________

Bezzdna [24]2 years ago
6 0
Ling did not make a mistake
You might be interested in
How do you do number 15 and 17? Help please?
vodomira [7]
15)

m = Miguel Indurian titles amount        l = Lance Armstrong titles amount

they both won titles to the tour de france, if we add all together, they sum up to 12 for both of them
so.. whatever "m" and "l" are, we could say that m + l = 12

now... Miguel won 2 fewer than Lance, so, whatever "l" is, m = l - 2
thus    \bf \begin{cases}
\boxed{m}=l-2\\\\
m+l=12\\
----------\\
\left( \boxed{l-2} \right)+l=12
\end{cases}

solve for "l", to see how many Lance won

how many did Miguel win? well,  m = l - 2

---------------------------------------------------------------------------------

17)

c = mgs amount in 12oz cup of regular coffee at starbucks
d = mgs amount in 12oz cup of regular decaffeinated coffee at starbucks

we know the regular coffee cup, has 13 times more than the decaf, same 12ouncer

thus whatever "c" and "d" are, we know that c = 13d
both 12ouncers put together, yield 280mgs of caffeine

so, one could say that whatever "c" and "d" are, c + d = 280

thus      \bf \begin{cases}
\boxed{c}=13d\\\\
c+d=280\\
----------\\
\left(  \boxed{13d}\right)+d=280
\end{cases}

solve for "d" to see how much is in the decaffed cup

the regular coffee cup?  well c = 13d
8 0
3 years ago
How do you do #1 & #2 ?
Alexeev081 [22]
Answer: \\ 1. \: x = \frac{ {32}^{2} }{24} = \frac{128}{3} \\y = \sqrt{ {24}^{2} + {32}^{2} } = 40\\ z = \frac{32 \times 40}{24} = \frac{160}{3} \\ \\ 2. \: x = \sqrt{( {4 \sqrt{5} )}^{2} - {8}^{2} } = 4
7 0
3 years ago
Easy but need help :(((
adelina 88 [10]
A function cannot be a function if any x is repeating. The x in A has the number 1 repeating. The x is C has 2 repeating the x in D has 1 repeating.
Therefore, our answer would be (B)
7 0
3 years ago
Read 2 more answers
What is the area of the circle?​
Alika [10]

Answer:The area of a circle is pi times the radius squared (A = π r²)

Step-by-step explanation:The area of a circle is pi times the radius squared (A = π r²)

3 0
3 years ago
3 hours in 11 questions help plsssssss !!!!!!!!!!
e-lub [12.9K]

Answer:

regular a polygon is: c, e, a

irregular is: b

not a polygon is f, d

Step-by-step explanation:

Regular is a normal shape which has angles

Irregular has straight lines all the way.

Not a polygon has not straight lines and sometimes has a gap in between the lines.

Hope this helps.

7 0
2 years ago
Other questions:
  • Hey i need help on a homework
    13·1 answer
  • 30.597/47<br> please help me
    5·2 answers
  • the slope of the line below is 2. use the labeled point to find a point-slope equation of the line. (1, 9)
    15·1 answer
  • Solve the equation <br>r²-4s+s²=8r+2s=28​
    12·1 answer
  • Simplify.<br> <img src="https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7Bn%7D%7B18%7D%20%7D" id="TexFormula1" title="\sqrt{\frac{n}{1
    14·1 answer
  • a classroom had 35 glue sticks at the ratio of glue sticks to glue bottles with 5 to 2 how many glue bottles does a classroom ha
    13·1 answer
  • Here’s a picture of it
    10·1 answer
  • Gavin wants to buy a bike which costs 1,000 dollars. He raised 250 so far from his shoe shop. How much more does Gavin need to r
    7·2 answers
  • My last one, can some plz helps me ​
    6·1 answer
  • Classify the following triangle.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!