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3 years ago

HEELP please i dont under stand

Mathematics

2 answers:

DIA [1.3K]3 years ago

7 0

The answer is A 3/10 because there is 3 blue marbles and all together there is 10

Reil [10]3 years ago

4 0

B. 2/9
You add up how many marbles there are. in this case there is 10. 3 out of those are blue. so you start out with the probability being 3/10. you take 1 marble out, making the total 9 now. now look at the color. you started with 2 red, 3 blue, and 5 yellow. you pulled out a blue, didnt put it back, so now there are 2 blue marbles left out of 9 marbles. there probability is now 2/9. hope i helped you.

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3 years ago

The length of a rectangle is 3 cm less than twice the width. If the perimeter is 42 cm, what is the length of the rectangle?

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Answer:

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Step-by-step explanation:

w+w+l+l= perimeter

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3 years ago

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Translation 1 unit right and 2 units down<br> Algebraic Rule:<br> Vector:

love history [14]

Answer:

$\large\boxed{\left}$

Step-by-step explanation:

$\vec{v}=\left\\\\x:\\x0-\text{to the right}\\\\y:\\y0-\text{up}$

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3 years ago

ABCD ≅ FGHJ. Find the measure of the given angles or lengths of the given sides. CD = 2x + 3; HJ = 3x + 2.

xenn [34]

The question asks for the length of CD and HJ. To find those, we need to find a connection between them.

In the given statement, it says ABCD ≅ FGHJ. When we look at the equation, the corresponding letters are equal. For example, angle A is congruent to Angle F. Or BC ≅ GH.

So we know that CD and HJ are congruent.
Set them equal:
$2x + 3 = 3x + 2$
Subtract 2x from both sides:
$3 = x + 2$
Subtract 2 from both sides:
$x = 3$
If x is 3, plug it in:
$3(3) + 2$
Simplify:
$9 + 2 = 11$

So, HJ is 11. And because HJ ≅ CD, CD is 11 too.

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3 years ago