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inessss [21]
3 years ago
5

A downhill skier was able to move 560 meters in 25 seconds. What is the skier’s average speed? (Round your answer to the nearest

tenth of a meter per second.)
Mathematics
2 answers:
igomit [66]3 years ago
6 0

Answer:

20 m/s

Step-by-step explanation:

560 m/25 s

=22.4 m/s

≈ 20 m/s ( nearest tenth of m/s )

KATRIN_1 [288]3 years ago
6 0

Answer:

22.4

Step-by-step explanation:

Just divide 560 by 25 .

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Carl is paid an hourly rate of $12.65 what is his weekly gross pay if he works 25 hours per week?
san4es73 [151]
12.65x25= $316.25 (I think)
7 0
3 years ago
Read 2 more answers
To determine drug dosages, doctors estimate a person’s body surface area (BSA) (in meters squared) using the formula BSA = √ h m
krok68 [10]

Answer:

Step-by-step explanation:

Given that a person’s body surface area (BSA) (in meters squared) using the formula

BSA =\frac{\sqrt{hm} }{60}

We are to calculate the rate of change of BSA with respect to mass for a person of constant height h = 180 from m =70 to m =80

For this we calculate BSA for 80 kg and BSA for 70 kg first

Rate of change = BSA(80)-BSA(70)

=\frac{\sqrt{180*80} }{60} -\frac{\sqrt{180*70} }{60} \\=2-1.871\\=0.129

i.e. rate of change per 10 kg is 0.129

No BSA does not increase more rapidly

7 0
4 years ago
A pizza shops sells pizzas that are 10inches (in diameter) or larger. A 10-inch cheese pizza cost 8$ .Each additional inch costs
yuradex [85]

Answer:

y=8+1.5x+0.75z

Step-by-step explanation:

step one:

let us initialize the variables

let the cost of pizza be y

and let additional inch be x

also, let additional topping be z

step two:

we can model the cost of pizza as

y=8+1.5x+0.75z

therefore the expression for the cost of the pizza is given as

y=8+1.5x+0.75z

5 0
4 years ago
X2 – 4x – 5 = 0 answer in quadratic form
kolezko [41]
X = 5
x = -1

You can get this by factoring and then setting each parenthesis equal to 0. 
8 0
3 years ago
What is the slope of the line that is perpendicular to the line 3y=-5x+21
11Alexandr11 [23.1K]

Step-by-step explanation:

the slope is the factor of x in an equation

y = ax + b

we have here

3y = -5x + 21

to get to the general format above we need to divide everything by 3 :

y = -5/3 x + 7

so, we see, the slope is -5/3.

the perpendicular (angle of 90°) slope is the original slope turned upside-down and with flipped sign :

3/5

so, I guess the correct answer option is c.

but it is not clear what you wrote there, as there is a "-" sign somehow in all 4 answers.

5 0
2 years ago
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