3 years ago

Selecting a marble from a bag containing 50 marbles and 45 orange marbles

Mathematics

1 answer:

tamaranim1 [39]3 years ago

7 0

U have a 90% chance of picking an orange marble, 10% of picking a different color

You might be interested in

What is x in x + 4 = -x - 4

VashaNatasha [74]

Answer: -4

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

(9x+2)(4x^2+35x-9)=0

pychu [463]

$(9x+2)*(4x^2+35x-9)=0$

we can make this...

$9x+2=0$

and

$4x^2+35x-9=0$

then...

$9x+2=0$

$\boxed{x=-\frac{2}{9}}$

$4x^2+35x-9=0$

$x=\frac{-b\pm\sqrt{b^2-4*a*c}}{2*a}$

$x=\frac{-35\pm\sqrt{35^2-4*4*(-9)}}{2*4}$

$x=\frac{-35\pm\sqrt{1369}}{8}$

$x=\frac{-35\pm37}{8}$

$x_1=\frac{-35+37}{8}=\frac{1}{4}$

$x_2=\frac{-35-37}{8}=-9$

$\boxed{\boxed{S=\{\frac{1}{4},-\frac{2}{9},-9\}}}$

I'm sure about my answer, don't matter the order...

4 0

3 years ago

Read 2 more answers

Explain how to apply the laws of exponents when multiplying and dividing numbers written in scientific notation.

Jlenok [28]

It is more effective if I explain using examples. So, for multiplication, you just have to multiply the magnitude, then add the exponents of the base 10. For example, when you multiply 5.2×10³ and 1.6×10², the solution would be:

(5.2)(1.6)(10³⁺²) = 8.32×10⁵

Now, for division, you will have to divide the magnitudes, and subtract the exponents by numerator minus denominator. The solution is as follows:

(5.2/1.6)(10³⁻²) = 3.25×10¹

5 0

4 years ago

What is the quotient 1/8•5/6

igomit [66]

3/20 is the answer! Hope I helped!!

6 0

3 years ago

Read 2 more answers

Joelle had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?

scZoUnD [109]

Joelle spent on the pencils $14

4 0

3 years ago

Read 2 more answers