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3 years ago

The sum of a number and three is less than nineteen less than the number

Mathematics

1 answer:

Nataliya [291]3 years ago

6 0

The answer to the solution is X+3<19-x.

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Please help<br> Consider: A (-3,-4), B (5,2), C (11,-6) <br><br> What is AB?<br> What is BC?

Salsk061 [2.6K]

Answer:

AB = 10, BC = 10

Step-by-step explanation:

AB = length of segment AB = sqrt( (-3-5)^2 + (-4-2)^2 ) = sqrt( 64 + 36) = sqrt(100) = 10

BC = sqrt( (5-11)^2 + (2-(-6))^2 ) = sqrt( 36 + 64 ) = sqrt( 100 ) = 10

7 0

2 years ago

A first number plus a second number is 10. Twice the first number plus the second totals 26.

MakcuM [25]

1st number = x
2nd number = y

2x + y = 26
-
x + y = 10

x = 16

26 - (2 x 16) = -6

10 - 16 = -6

Number 1 is 16
Number 2 is -6

3 0

3 years ago

A fair number cube with

malfutka [58]

Answer:

b=15 percentage

a=20 percentage

6 0

2 years ago

Between which two numbers is Negative two-thirds located on a number line?

klemol [59]

Answer:-1 and 0

Step-by-step explanation:

5 0

3 years ago

Carl is raising money for his football team. He is selling chocolate bars for $1.50 each and cookies for $2. He sold all 20 of h

stich3 [128]

Answer:

Carl has to sell at least $8$ cookies.

$c\geq 7.5$

Step-by-step explanation:

Carl gets $\$1.50$ by selling 1 chocolate bar.

Earning from chocolate bars:

$Total\ chocolate\ bar=20\\\\Earning\ from\ one\ chocolate\ bar=\$1.50\\\\Total\ earning\ from\ chocolate\ bar=Total\ chocolate\ bar\times cost\ of\ 1\ chocolate\ bar=20\times 1.5=\$30$

Earning From cookies:

$Let\ total\ number\ of\ cookies=c\\\\Cost\ of\ 1\ cookie=\$2\\\\Earning\ from\ cookies=2\times c=2c$

$Total\ earning=Earning\ from\ cookies+Earning\ from\ cookies+Earning\ from\ chocolate\ bars\\\\Total\ earning=30+2c$

Carl wants to raise at least $\$55$

$Total\ earning\geq 55\\\\2c+30\geq 55\\\\2c\geq 55-30\\\\2c\geq 15\\\\c\geq7.5$

7 0

3 years ago