Let x be white marbles, y be yellow marbles
x+y=54…(1)
x=3y - 6 …(2)

put (2) into (1)
(3y - 6) + y = 54
4y = 60
y=15

put y=15 into (1)

x + 15=54
x=39

so y=15 x=39

7 0

3 years ago

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A manager needs to rope off a rectangular section for a private party. The length of the section must be 7.6 meters. The manager

Andrew [12]

Answer:

$W\leq 6.4\ m$

Step-by-step explanation:

we know that

The perimeter of a rectangle is equal to

$P=2(L+W)$

we know that

$L=7.6\ m$

$P\leq28\ m$

substitute

$2(7.6+W)\leq28$

solve for W

$(7.6+W)\leq14$

$W\leq14-7.6$

$W\leq 6.4\ m$

5 0

3 years ago

Alissa has$75 worth of bird seed, which she will put into small bags. she will sell each bag for $7. what is the greatest number

strojnjashka [21]

The answer would be eight

4 0

3 years ago

In 9.3 x 10-8 the exponent is a negative number. Which of these describes the value of a number in scientific notation that incl

WARRIOR [948]

Answer:

0.000000093

Step-by-step explanation:

Theres seven zeros after the decimal

6 0

3 years ago