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Temka [501]
3 years ago
6

Solve for , , and . -6x+3y-z=5 3x-y+5z=-10 -x+2y+3z=-1

Mathematics
1 answer:
Ray Of Light [21]3 years ago
8 0

Answer:

x=1, z=-2, y=3

Step-by-step explanation:

Substitution Method

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The daytime temperature in Apple Valley is falling by 2.5 degrees each day. What will the net change in the daily temperature be
nexus9112 [7]

Answer:

Option D -17.5 degrees is correct answer

Step-by-step explanation:

Since a calendar week has 7 days. and temperature is falling by -2.5 daily.

So, On Day 1 Temperature is -2.5 degrees

On Day 2 Temperature is -2.5 + -2.5 = -5 degrees

On Day 3 Temperature is = -5 + -2.5 = -7.5 degrees

On Day 4 Temperature is = -7.5 + -2.5 = -10 degrees

On Day 5 Temperature is = -10 + -2.5 = -12.5 degrees

On Day 6 Temperature is = -12.5 + -2.5 = -15 degrees

On Day 7 Temperature is = -15 + -2.5 = -17.5 degrees

So, Option D -17.5 degrees is correct answer.

3 0
3 years ago
Read 2 more answers
Find the value of the rectangular prism
Ainat [17]
27.

Volume = length*width*height
So 3*3*3=27
6 0
3 years ago
For the following right triangle, find the side length x. Round your answer to the nearest hundredth.
atroni [7]

Answer:

14.97

Step-by-step explanation:

8 0
2 years ago
The cost per week of running a boarding house is partly constant and partly
patriot [66]

Answer:

the cost of running the boarding

house for 600 students is N61,000

Step-by-step explanation:

Let C represents cost

K1 represents first constant

K2 represents second constant

C= k1+k2n

3500 = k1 + 25 k2............. Eqn(1)

6000= k1 + 50 k2 .............. Eqn(2)

Subtract eqn(1) from eqn(2)

2500= 25k2

K2= 2500/25

K2= 100

To get k1 from eqn(1)

3500 = k1 + 25 k2

Substitute the value of k2

3500 = k1 + 25 (100)

3500= k1 +2500

K1= 3500- 2500

K1= 1000

The equation connecting them;

C= 1000+ 100n

The cost of running the boarding

house for 600 students is

n= 600

C= 1000+ 100(600)

C= 1000+60000

C= N 61,0000

6 0
2 years ago
Draw all lines of symmetry for each figure. Please help ASAP!!! :(
Zanzabum

draw the lines down all the ways that it is equal on each side

7 0
3 years ago
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