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nlexa [21]
4 years ago
8

Solve the system x-z=5, 2x+y= 7, y+3z=12

Mathematics
1 answer:
Wewaii [24]4 years ago
7 0
x,z,y = 20,15,-33

i think thats it im sorry
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The temperature fell 4 degrees in the last hour. Now it is 21 degrees. Write an equation to find the temperature it was 1 hour a
Sloan [31]

Answer:

21 + 4  = 25

Step-by-step explanation:

this is the answer because the temperature fell 4 degrees in the last hour.

so we have to add back that 4 to get the answer.

our equation will be 21 + 4 equals 25.

hope this helps!

sakuracherry

6 0
3 years ago
sixteen dictionaries weigh 11.52 pounds all together. each dictionary has the same weight in pounds,how much does one dictionary
iogann1982 [59]

Answer:

1.92 Pounds per dictionary


Step-by-step explanation:

Since 6 dictionaries weigh 11.52 pounds, and each of the dictionaries weigh the same, this is a simple division problem.

11.52/6=1.92


3 0
3 years ago
Simon has a certain length of fencing to enclose a rectangular area. The function
TiliK225 [7]

Answer:

336

Step-by-step explanation:

6 0
3 years ago
The angle of depression from the top of a lighthouse to a boat is 27*. if the direct distance from the top of lighthouse to the
alisha [4.7K]

Answer:

Correct answer:  Db = 411 .18 ft

Step-by-step explanation:

Given:

α = 27°  angle of depression

Dt = 462 ft  distance from the top of lighthouse to the boat

Db = ?   distance from the base of the lighthouse to the boat

Here we have a right triangle with hypotenuse Dt and one leg Db.

By definition

cos α = Db / Dt  ⇒ Db = Dt · cos α

Db = 462 · cos 27° = 462 · 0.89 = 411 .18 ft

Db = 411 .18 ft

God is with you!!!

5 0
3 years ago
NEED HELP LIKE NOW 15 points if answered!!!!!!!<br> how do you work it out
goblinko [34]

Remark

You have to stare at this for a moment before you catch on. When you fold the arc into a circle, 8pi becomes the circumference of the base circle.

Formula

C = 2*pi*r

C = 8pi

Solution

8pi = 2pi * r    Divide both sides by 2pi

8pi / 2 pi = r

4 = r                           Answer

4 0
3 years ago
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