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3 years ago

10

There are 7 more girls than boys in a class. There are 23 students in the class in all how many girls are there in the class. Wh

at are the unknowns in this problem?

1 answer:

Flura [38]3 years ago

6 0

The unknown is how many girls and boys are in the class.

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Solve for . need 20 letters lol<br> /5 = −9

Fantom [35]

Answer:

r=-45

Step-by-step explanation:

r/5=-9

x 5 x5

________________

r=-45

Hope this helps ∞<3

3 0

2 years ago

If y=kx, where k is a constant, and y=24 when x=6, what is the value of y when x=5

Phoenix [80]

I hope this helps <span>24 = k * 6 </span><span>4 = k </span><span>y = kx </span><span>y = 4x </span><span>y = 4 * 5 </span><span>y = 20

</span>

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3 years ago

Given the two points (2,4) and (-3,2), what is the slope of the line that goes through both of these points?

Andreyy89

With the formula: m=(y1-y2)/(x1-x2) you can sub in the values to get the slope (m).

m=(4-2)/(2-(-3))
= 2/5

Therefore the slope is 2/5.

5 0

2 years ago

Read 2 more answers

How many lines of symmetry does the letter G have

Lina20 [59]

Answer:

Step-by-step explanation:

Letter having no lines of symmetry:

F G J L N P Q R S Z have neither horizontal nor vertical lines of symmetry.

5 0

3 years ago

Consider three events A, B and C with following properties.

lisov135 [29]

By the inclusion/exclusion principle,

$\mathbb P(D)=\mathbb P(A\cup B\cup C)$
$\mathbb P(D)=\mathbb P(A)+\mathbb P(B)+\mathbb P(C)-\bigg(\mathbb P(A\cap B)+\mathbb P(A\cap C)+\mathbb P(B\cap C)\bigg)+\mathbb P(A\cap B\cap C)$
$\mathbb P(D)=\dfrac14+\dfrac16+\dfrac14-\dfrac39+\dfrac1{13}$
$\mathbb P(D)=\dfrac{16}{39}\neq1$

So the union of A, B, and C does not constitute the entire sample space.

5 0

3 years ago