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jenyasd209 [6]
3 years ago
11

A sprinter can run 279 feet in 9 seconds. Find the sprinter's unit rate of feet per second.

Mathematics
1 answer:
TiliK225 [7]3 years ago
5 0
Easy 31 feet  per second take 279 and divide it by 9 and you get 31

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5. Katie makes and sells scarves. Her monthly profit is given by P(s) = -s2 + 25s - 100, where "s" is the selling price. For wha
Marat540 [252]

Answer: s > 5

Step-by-step explanation:

-s² + 25s - 100 > 0

Coefficient of s² is -1, multiply the equation through by -1.

-1 × (-s² + 25s - 100)

s² — 25s + 100

ax² + bx + c

Then you get the factors x and y that gives x + y = b and xy = c

b = -25 and c = 100, x = -20 and y = -5

-20 × -5 = 100 and -20 + -5 = -25

Then

s² — 20s — 5s + 100 > 0

Factorising,

s (s — 20) — 5(s — 20) > 0

(s — 5)(s — 20) > 0

(s — 5) > 0 and (s — 20) > 0

s>5 and s>20

s > 5

Hope this Helps?

4 0
3 years ago
Model with mathematics. Abbi has decided to
xxTIMURxx [149]

Answer:

180,000

Step-by-step explanation:

You got to multiply all the numbers and then divide by 600 and then you het your anwser

3 0
2 years ago
Evaluate 2/3x -16 when x= 18<br>A.-6<br>B.-4<br>C.2<br>D.4​
const2013 [10]
2/3 of 18 is 12
then 12- 16 is -4
SO B
8 0
3 years ago
Bananas cost $1.50 per pound, and guavas cost $3.00 per pound. Kiran spends $12 on fruit for a breakfast his family is hosting.
Flura [38]

Answer:

4 pounds of bannanas and 2 pounds of guava

Step-by-step explanation:

2 pounds of bananas equals 1 guava

3 0
3 years ago
Please please help me
ratelena [41]

Answer:

<h2>           A = 189 cm²</h2>

Step-by-step explanation:

The area of a parallelogram is equal to the product of the length of its <u>side and the height</u> of the parallelogram <u>perpendicular to that side</u>.

H = 9 cm

S = 21 cm

A = S•H = 21 cm • 9 cm = 189 cm²

5 0
2 years ago
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