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Sever21 [200]
4 years ago
5

The ratio of skiers to snowboarders is 1:2. There are 1250 more snowboarders than skiers. How many skiers and snowboarders are t

here?
Mathematics
1 answer:
Luba_88 [7]4 years ago
8 0
x-number\ of\ skiers\\x+1250-numbers\ of\ snowboarders\\\\\frac{skiers}{snowboarders}=\frac{1}{2}\Rightarrow\frac{x}{x+1250}=\frac{1}{2}\ \ \ \ |cross\ multiply\\\\2x=x+1250\ \ \ \ \ \ |subtract\ x\ from\ both\ sides\\\\x=1250\\\\x+1250=1250+1250=2500\\\\Answer:There\ are\ 1250\ skiers\ and\ 2500\ snowboarders.
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3 years ago
5. Simplify the expressions below by combining like terms<br> a) 4 + x + 3x + 2x - 2
zalisa [80]

Answer:

6x + 2

Explanation:

4 + -2 = 2 and x + 3x + 2x = 6x

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3 years ago
Select the correct answer. For which quotient is x=7 an excluded value?
Lisa [10]

Answer:

\frac{7x}{x^2 - 10x + 21} / \frac{x + 7}{7}

Step-by-step explanation:

Given

See attachment

To answer this question, we start by equating the denominators of each option to 0; then, solve for x

(a):

\frac{7x}{x^2 - 10x + 21} / \frac{x + 7}{7}

This gives

\frac{7x}{x^2 - 10x + 21} * \frac{7}{x + 7}

Set the denominator to 0

(x^2 - 10x + 21)(x + 7) = 0

Solve for x

(x^2 - 7x - 3x + 21)(x + 7) = 0

Factorize:

(x(x - 7) - 3(x - 7))(x + 7) = 0

(x - 7)(x - 3)(x + 7) = 0

This implies that:

x = 7\ or\ x = 3\ or\ x = -7

From above, one of the values of x is 7.

This implies that x = 7 is an excluded value for this quotient.

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6 0
3 years ago
Which expression has a value of 24?
marin [14]

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the last one

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5 0
3 years ago
Read 2 more answers
Consider a one-player game with zero cost (i.e., the player pays nothing to play the
UkoKoshka [18]

Answer:

B. 35%

Step-by-step explanation:

P(winning $1.00)=40%

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Therefore:

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=0.35

The probability of winning nothing at all is 35%.

5 0
3 years ago
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