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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))

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I need help with this page
yaroslaw [1]

Remember,

sin = op/hyp

cos = adj/hyp

tan = op/adj

For question 3 it would be B and C, because the adjacent side of angle x is 12, the hypotenuse is 37, and cos = adj/hyp.  Also, the opposite side of angle z is 12, and the hypotenuse is 37, and sin = op/hyp.  So both answers would be 12/37. You would do the same with question 4.

For 5, you would do the same thing.  It would be D because you can only take the sin of angle 24, and x is a side.  the opposite of 24 is x and the hypotenuse is 11, so sin 24 would be x/11. It is the same for problem 6.

6 0
1 year ago
Question 2 of 10
ratelena [41]

Answer:

Sorry

Step-by-step explanation:

Sorry i need the points.

3 0
3 years ago
Answer for brainliest
madam [21]

Answer:

c

Step-by-step explanation:

Negative 7 over 10 minus negative 2 over 10 = negative 5 over 10; therefore, the distance from A to B is absolute value of negative 5 over 10 equals 5 over 10 units.

the correct option is C.

(-7/10) - (-2/10)

then add -7/10 + 2/10 which will equal -5/10

6 0
2 years ago
5y + 6 = 25 + 6 what property of equality is used
steposvetlana [31]
Addition property
6=6 then 5y+6=25+6
7 0
2 years ago
ITS AN EMERGENCY PLEASE!
Lady bird [3.3K]
I’m pretty sure the power is 4
3 0
3 years ago
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