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olganol [36]
2 years ago
8

Find x1. x + 10 < -72. -3x - 4 > 5Help me please

Mathematics
1 answer:
oksian1 [2.3K]2 years ago
8 0

1)

x+10<-7

bring 10 to the other side

x<-10-7

x<-17

2)

-3x-4>5

bring -4 to the other side

-3x>9

divide -3 at the other side, since it is negative it changes to less than

x<-3

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Two mechanics worked on a car. The first mechanic worked for 5 hours, and the second mechanic worked for 15 hours. Together they
Wewaii [24]
X = rate of mechanic who worked 5 hours

y = rate of mechanic who worked 15 hours

x + y = 200
5x + 15y = 1950

you find the first variable in one of the equations, then subsitute the result into the other equation. your answer would be:

the mechanic who worked for 5 hours charged $105 per hour, the one who worked 15 hours charged $95 per hour.

hope this helps :)


3 0
3 years ago
Will mark brainlist for anyone who answers these parts correctly and properly showed their work.
dalvyx [7]

Answer:

The rise is -5 the run is 4

Step-by-step explanation:

Slope (m) =

ΔY

ΔX

=

-5

4

=

-1.25

θ =  

arctan(

ΔY

) + 360°

ΔX

=

308.65980825409°

ΔX = 2 – -2 = 4

ΔY = -1 – 4 = -5

Distance (d) = √ΔX2 + ΔY2 = √41 = 6.4031242374328

Equation of the line:

y = -1.25x + 1.5

or

y =  

-

5

x

4

+  

3

2

When x=0, y = 1.5

When y=0, x = 1.2

Please give brainliest PLZPLZ

I really hope this helps have a beautiful day

3 0
3 years ago
Slope of (3,4) (9,2)​
Alla [95]

Answer:

m= -1/3

good luck!

5 0
3 years ago
Find all numbers whose absolute value is -5.
Kryger [21]

There are none. Absolute values are always positive

3 0
3 years ago
Read 2 more answers
marnie walsh purchased a delux dictionary for 38.75 and a full color atlas for 41.10. the state sales tax is 6%, tge city tax is
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8 0
3 years ago
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