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tiny-mole [99]
3 years ago
10

I need HELP ASAP

Mathematics
1 answer:
maxonik [38]3 years ago
3 0

Answer:

-15 is how many tests per hour i think, and 78 is how many tests total

Step-by-step explanation:

= 78 − 15ℎ

1 hour would be

78-(15x1)=63

2 hours would be

78-(15x2)=48

and so on.

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The midpoint of AB is M(1, -1). If the coordinates of A are (7, -4), what are the
Lera25 [3.4K]

Answer:

The point which is the midpoint is equally spaced from both ends of the line. We know the coordinates of A and we know the coordinates of M, the midpoint.

Step-by-step explanation:

3 0
3 years ago
4m-7=4m-7 is what type of property
Marianna [84]
Reflexive Property Of Equality
8 0
4 years ago
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Irina rode her bike to work at an average speed of 16 miles per hour. It started to rain, so she got a ride home along the same
VLD [36.1K]
Bike to work: d=16*t
ride home: d = 27*.4 =10.8

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3 0
3 years ago
Factorise: <br>k² - 2k - 8<br>with explaining the steps <br>​
scoundrel [369]

Answer:

( k-4)(k+2)

Step-by-step explanation:

k² - 2k - 8

What 2 numbers multiply to -8 and add tp -2

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8 0
3 years ago
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Write an expression that converts 50 liters per minute into milliliters per second
Mariulka [41]
So to convert from leiters per minute to milileters per second

lieters=L
milileters=ml
minute=M
second=S

L/M=liters pre minute
ml/s=milileters per second

so to convert, just conver them seperately first

L=1000ml
M=60S
therefor
conversion factor for M to S=
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conversion factor from L to ml=
L times 1000ml/L


so basically to convert, just multiply the equations gotether

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if you have 50 liters per minute than
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7 0
4 years ago
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