2 years ago

9,923.33 X 28% / 100 =

Mathematics

1 answer:

inna [77]2 years ago

4 0

27.785324 I think this is right

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Y=–3x + 6y=9 What is the solution to the system of equations? (–21, 9) (9, –21) (–1, 9) (9, –1)

weqwewe [10]

ANSWER

The solution is $(-1,9)$

EXPLANATION

We want to solve the simultaneous equations

$y=-3x+6---(1)$

and

$y=9--(2)$ .

We substitute equation (2) in to equation (1), to obtain

$9=-3x+6$

This has now become a linear equation in a single variable $x$ .

We solve for x by grouping like terms.

$9-6=-3x$

$3=-3x$

We divide through by negative 3 to get;

$-1=x$ .

Hence, the solution is $(-1,9)$

7 0

3 years ago

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The cost C to produce x number of tennis rackets is C = 190 + 18. The tennis rackets are sold wholesale for $23

andre [41]

Answer:

19 tennis rackets

Step-by-step explanation:

4 0

2 years ago

How do I solve this?

7nadin3 [17]

The minimum happens at x = -b/2a

x = -30 / 2(3) = -30/6 = -5

Now replace x in the equation with -5 and solve:

3(-5)^2 + 30(-5) +27 = 75 - 150 + 27 = -48

The minimum is at (-5,-48)

3 0

3 years ago

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In Seaton Park school, 60% of the boys play baseball and 24% of the boys play baseball and football. What percentage of those th

Dmitrij [34]

Answer:

$0.4\%$

Step-by-step explanation:

Given: 60% of the boys play baseball and 24% of the boys play baseball and football in Seaton Park School

To find: percentage of those that play baseball also play football

Solution:

Let B denotes boys who play baseball and F denotes boys who play football.

$P(B)=60\%$

$P(F\cap B)=24\%$

Percentage of those that play baseball also play football = $P\left ( F|B \right )=\frac{P(F\cap B)}{P(B)}=\frac{24}{60}=\frac{2}{5}=0.4\%$

7 0

3 years ago

The 24 students in Mr. Browns homeroom sold 72 magazine subscriptions. The 28 students in Mrs. Garcia homeroom sold 98 magazine

Nady [450]

72/24=3
98/28=3.5
Garcia

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3 years ago

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