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
ElenaW [278]
3 years ago
13

I need an answer for this lolz

Mathematics
1 answer:
Afina-wow [57]3 years ago
8 0

Answer:

She worked 12 hours as a carpenter and 18 hours as a blacksmith

Step-by-step explanation:

You can solve this problem using a system of equations:

where c represents hours worked as a carpenter, and b represents hours worked as a blacksmith;

c + b = 30

20c + 25b = 690

To solve this system, you can multiply the first equation by 20 and subtract it from the second to isolate b:

  20c + 25b = 690

<u>- 20c + 20b = 600</u>

              5b  = 90

Now, you can solve for b:

5b = 90

b = 18 (divide both sides by 5)

Now that you know b, you can input it into the first equation to find c:

b + c = 30, where b = 18;

18 + c = 30 (replace b in the equation with 18 because of transitive property of equality)

c = 12 (subtract 18 from both sides of the equation))

You might be interested in
HELP ASAP PLEASE HELP QUICK!!!!
masha68 [24]

Answer:

4:5 that's last answer i got

6 0
3 years ago
Read 2 more answers
What is 10+√50<br> -----------<br> 5
zubka84 [21]

Answer:

70.7

Step-by-step explanation:

I put it all together and got 70.7106781187 i cut it

to 70.7

6 0
3 years ago
What is a six sided shape called
pashok25 [27]

Answer:

hexagon

Step-by-step explanation:

3 0
3 years ago
Please answer thank u i give brainliest to best answer
boyakko [2]

Answer:

A, B, C,

Step-by-step explanation:

Just use a calculator...?

a)

2^-^2*2^8=\frac{1}{2^2}*2^8=\frac{2^8}{2^2}=2^8^-^6=2^6=64\\

b)

3^-^5*3^1=\frac{1}{3^5}*3=\frac{3}{243}=\frac{1}{81}

c)

4^4*4^-^3=\frac{4^4}{4^3}=4^1=4

d)

5^3*5^-^1=\frac{5^3}{5^1}=5^2=25

e)

6^-^8*6^-^6=\frac{6^6}{6^8}=6^-^2=\frac{1}{6^2}=\frac{1}{36}

f)

8^2*8^-^4=\frac{8^2}{8^4}=8^-^2=\frac{1}{8^2}=\frac{1}{64}

3 0
3 years ago
Read 2 more answers
Which linear inequality is represented by the graph?
mixer [17]

Answer: 3

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Suppose that about 58% of the people who are murdered actually knew the person who committed the murder. suppose that a detectiv
    12·1 answer
  • What is the unit distance, Rounded to the nearest hundredth, between the points (-5, 2) and (3, 7)?
    9·1 answer
  • Please help!!!! I don’t get this
    5·1 answer
  • The ducks at the Duck Pond game are numbered 1 through 31 with a 32nd one bearing the Big Prize
    10·1 answer
  • Please explain how u got the answer I’ll appreciate a lot tyyyt
    14·2 answers
  • The accompanying Venn diagram shows the number of elements in region V. Use the given cardinalities to
    5·1 answer
  • A farmer has a triangular field with sides of 200 feet, 350 feet, and 400 feet. He wants to apply fertilizer to
    6·1 answer
  • Sos, paper due tmr ! EASY ALGEBRA QUESTION FOR MANY BUT NOT FOR ME ! HELP ME FILL IN THE BLANKS !
    8·1 answer
  • Please help I’ve been stuck in this for 5 minutes
    6·1 answer
  • An object is launched directly in the air at a speed of 64 feet per second from a platform located 16 feet above the ground. The
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!