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Svetllana [295]

3 years ago

15

max decides to use 700 rubber bands to make 8 balls. is it reasonable to say he would use about 90 rubber bands to make each bal

l? explain.

1 answer:

Angelina_Jolie [31]3 years ago

4 0

Answer: yes

Step-by-step explanation: 8 can go into 70 about 9 times which means 8 can go into 700 about 90 times. (700/8= 87.5)

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What is the greatest whole number that rounds to 23,700 and why?

Maslowich

23649 because its the closest whole number to 23 700 (if you round to the hundreds place)

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3 years ago

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3x+4y=24 ,4x+3y=22 simultaneous equations simultaneous equ

Vinvika [58]

Answer:

x=64

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Step-by-step explanation:

3x+4y=24 4(24-4y\3)+3y=22

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2 years ago

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Ghella [55]

Answer:

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Step-by-step explanation:

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2 years ago

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Arlecino [84]

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3 years ago

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Which of the following are solutions to the equation below?

scoundrel [369]

Answer:

The correct options for the solution values are:

$x=2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

Step-by-step explanation:

Given the expression

$x^2+10x+25=8$

Subtract 25 from both sides

$x^2+10x+25-25=8-25$

Simplify

$x^2+10x=-17$

Add 25 or 5² to both sides

$x^2+10x+5^2=8$

as

$x^2+10x+5^2=\left(x+5\right)^2$

so the expression becomes

$\left(x+5\right)^2=8$

$\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}$

solve

$x+5=\sqrt{8}$

Subtract 5 from both sides

$x+5-5=2\sqrt{2}-5$

$x=2\sqrt{2}-5$

solve

$x+5=-\sqrt{8}$

Subtract 5 from both sides

$x+5-5=-2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

Therefore, the solution to the equation

$x=2\sqrt{2}-5,\:x=-2\sqrt{2}-5$

Hence, the correct options for the solution values are:

$x=2\sqrt{2}-5$

$x=-2\sqrt{2}-5$

6 0

3 years ago