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FromTheMoon [43]
3 years ago
8

Shorts are on sale for 10% off. If Kate buys 10 pairs of shorts at s dollars apiece, which expression is NOT equivalent to the s

ituation stated?
A) 9s
B) 10s − 0.10(10s)
C) 10s − 0.10s
D) 10s − 1s
Mathematics
2 answers:
NeX [460]3 years ago
7 0

Answer:

The correct answer is C

Step-by-step explanation:

SIZIF [17.4K]3 years ago
3 0

10 pairs of short cost 10s (without sale).

10% =0.1, and 10% off is

10s - 0.10*10s (B) = 10s -1s (D)

10s -1s = 9s (A)

Expression that does not match is (C),

correct answer is (C).



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Micah and his brother found some cash at a bus stop.They split the money evenly, each getting $ 16. How much money did they find
Lisa [10]

Answer: 32 dollars

Step-by-step explanation:

7 0
3 years ago
30 seconds of 2.5 mins in percentage
WARRIOR [948]

Answer:

20%

Step-by-step explanation:

2.5 min =(60×2.5)sec=150 sec

30sec to 150sec=30×100/150=20%

7 0
3 years ago
Read 2 more answers
John runs to the market and comes back in 15 minutes. His speed on the way to the market is 5m/s and his speed on the way back i
katen-ka-za [31]

Answer:

The distance to the market is 2000 m

Step-by-step explanation:

∵ John runs to the market and comes back in 15 minutes

→ Change the min. to the sec. because the unit of his speed is m/s

∵ 1 minute = 60 seconds

∴ 15 minutes = 15 × 60 = 900 seconds

→ Assume that t1 is his time to the market and t2 is his time from

  the market

∵  t1 + t2 = 15 minutes

∴ t1 + t2 = 900 ⇒ (1)

→ Assume that the distance to the market is d

∵ His speed on the way to the market is 5m/s

∵ Time = Distance ÷ Speed

∴ t1 = d ÷ 5 ⇒ (1 ÷ 5 = 0.2)

∴ t1 = 0.2d ⇒ (2)

∵ His speed on the way back is 4m/s

∴ t2 = d ÷ 4 ⇒ (1 ÷ 4 = 0.25)

∴ t2 = 0.25d ⇒ (3)

→ Substitute (2) and (3) in (1)

∵ 0.2d + 0.25d = 900

∴ 0.45d = 900

→ Divide both sides by 0.45

∴ d = 2000 m

∴ The distance to the market = 2000 m

8 0
3 years ago
Determine the equation of the line that passes through the given points. (If you have a graphing calculator, you can use the tab
siniylev [52]

Answer:

y = -2x

Step-by-step explanation:

It passes through -5, 10 and 5, -10

gradient = Δy/Δx

gradient = -10 - 10 / 5 -- 5

gradient = -20 / 10

gradient = -2

let's use -5, 10 for y = mx + b

10 = -2(-5) + b

10 = 10 + b

b = 10 - 10

b = 0.

the equation of the line is just y = -2x

6 0
2 years ago
bill and his friends went to red robin. Their order consisted of 2 hamburgers to $5.49 each, a chicken sandwich for $6.25, an or
4vir4ik [10]
$5.49 per hamburger x 2 hamburgers=$10.98
$1.75 per soda x 4 sodas=$7
$10.98+$6.25+$12.99+$7=$37.22
$37.22 x 0.07 sales tax=approximately $2.61
$37.22 x 0.2 tip=approximately $7.44
$37.22+$2.61+$7.44=$47.27
7 0
3 years ago
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