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3 years ago

14

I really need help please someone

1 answer:

Lilit [14]3 years ago

3 0

Step-by-step explanation:

your welcome

....................

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13 cm<br> 5 am<br> 12 cm<br> 10 cm<br> What is the total surface area of the block?

alekssr [168]

Answer:

13+5+12+10=40

Step-by-step explanation:

The answer would be 40 cm.

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3 years ago

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David wants to buy a large screen television that cost 1800$. If he buys it today ,he can save 30%.How much will the television

Irina-Kira [14]

Answer:

$1260

Step-by-step explanation:

70/100 × $1800 = $1260

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What goes into 5miles in yards

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Combine like terms to simplify the following expressions<br><br> 5y^2 + 7y - 8y^2 - 8y + 11

jenyasd209 [6]

Answer:

$-3y^{2} -y+11$

Step-by-step explanation:

Collect like terms

$-3y^{2} +7y-8y+11$

Collect like terms again and you get $-3y^{2} -y+11$

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4 years ago

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Train A leaves the station traveling east at 50 mph while train B leaves the station 30 minutes later traveling west at 65 mph.

stepladder [879]

Answer:

Change 45 min to .75 hrs

Distance = speed * time

Train A's distance = 55(t+.75)

Train B's distance = 70t

The equation

D(t) = 70t + 55(t+.75)

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3 years ago