3 years ago

Please help √8t+7 = –2

Mathematics

1 answer:

Andrews [41]3 years ago

4 0

Answer:

Step-by-step explanation:

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Ms. Day went shopping last week and spent a total of $120. Blankets cost her $16 while pillows cost her $10. Altogether, she bou

Crazy boy [7]

Answer:

Ms. Day bought 5 blankets and 4 pillows.

Step-by-step explanation:

Let $x$ denotes number of blankets and $y$ denotes number of pillows.

Blankets cost her $16 while pillows cost her $10 and Ms. Day spent a total of $120.

$16x+10y=120$

Divide this equation by 2.

$8x+5y=60\,\,...(i)$

Ms. Day bought 9 items.

$x+y=9$

Multiply this equation by 5.

$5x+5y=45\,\,...(ii)$

Subtract $(ii)$ from $(i)$

$3x=15\\x=5$

Put $x=5$ in $x+y=9$

$5+y=9\\y=9-5\\y=4$

Therefore,

Ms. Day bought 5 blankets and 4 pillows.

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3 years ago

amiee wants to order DVDs from amazon each DVD costs 8.49 and shipping for the entire order is 5 dollars she only has 70 dollars

Neporo4naja [7]

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3 years ago

The movie theatre has 250 seats. 225 seats were sold for the current showing . What percent of the seats are empty?

Leno4ka [110]

250-225=25 seats empty. Place what you want/total=(25/250)x100=0.1x100=10% of the seats are empty.

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6 night

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Answer:

-3t ≥39

-3t/-3 ≥39/-3

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