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Vsevolod [243]
3 years ago
7

Two mechanics worked on a car. The first mechanic worked for

Mathematics
1 answer:
Temka [501]3 years ago
4 0
Write a system of equations:

x + y = 125

20x + 15y = 2100

Solving:

x = 125 - y

20(125 - y) + 15y = 2100
2500 - 20y + 15y = 2100
2500 - 5y = 2100
-5y = 2100 - 2500
-5y = -400
y=80

x + 80 = 125
x = 125 - 80
x = 45

The first charges 45$ per hour and the second charges 80$ per hour
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Answer:

E, F, B, and C

Step-by-step explanation:

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3 years ago
You dispense a quantity of 180 tablets for a prescription written for Ibuprofen 800mg to be taken by mouth 3 times a day. How ma
kap26 [50]

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<u></u>

3 0
3 years ago
Can someone help me please
telo118 [61]
It's a reflection across the x axis, so the y intercept won't change (12)

f (x) = 3x + 12
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3 years ago
What is the surface area of the square pyramid with a base of 4
astraxan [27]
Hello,

<span>SA = s^2 + 2 × s × l 

Base = 4 

SA= 4^2 + 2 x 4 x l
SA= 16 + 2 x 4 x l
SA= 16 + 8 x l

Simplified, the surface area of a square pyramid with a base of 4 and an </span>unknown length/height (l) is SA= 16 + 8 x l.


Faith xoxo
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4 years ago
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ziro4ka [17]

Answer:

0.66, 2.39

Step-by-step explanation:

two decimal places look like this. Ex: (4.74)

7 0
3 years ago
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