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2 years ago

Evaluate the expression 50 - t when t equals 10, 20, or 25. Then

Mathematics

2 answers:

Nikitich [7]2 years ago

5 0

100 is the answer okay

ludmilkaskok [199]2 years ago

3 0

Answer:

$(t,50-t) = \{(10,40),(20,30),(25,25)\}$

Step-by-step explanation:

Given

$Expression: 50 - t$

Required

Evaluate when:

$t = \{10,20,25\}$

When $t =10.$

The expression is:

$50 - t = 50 - 10$

$50 - t = 40$

When t = 20

The expression is:

$50 - t = 50 - 20$

$50 - t =30$

When $t = 25$

The expression is:

$50 - t = 50 - 25$

$50 - t =25$

The result is:

$(t,50-t) = \{(10,40),(20,30),(25,25)\}$

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Hatshy [7]

Answer:

Step-by-step explanation:

y=−5/2x−11 so slope is -5/2

y-intercept means when x is zero, then what is y? the answer is -11. So the y-intercept is (0 , 11)

mark brainliest plz

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2 years ago

What is the probability of landing on a number less than 7 and then landing on a number less than 8?

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6 0

2 years ago

In a group of Explore students, 38 enjoy video games, 12 enjoy going to the movies and 24 enjoy solving mathematical problems. O

Elodia [21]

Answer:

The number of students that like only two of the activities are 34

Step-by-step explanation:

Number of students that enjoy video games, A = 38

Number of students that enjoy going to the movies, B = 12

Number of students that enjoy solving mathematical problems, C = 24

A∩B∩C = 8

Here we have;

n(A∪B∪C) = n(A) + n(B) + n(C) - n(A∩B) - n(B∩C) -n(A∩C) + n(A∩B∩C)

= 38 + 12 + 24 - n(A∩B) - n(B∩C) -n(A∩C) + 8

Also the number of student that like only one activity is found from the following equation;

n(A) - n(A∩B) - n(A∩C) + n(A∩B∩C) + n(B) - n(A∩B) - n(B∩C) + n(A∩B∩C) + n(C) - n(C∩B) - n(A∩C) + n(A∩B∩C) = 30

n(A) + n(B) + n(C) - 2·n(A∩B) - 2·n(A∩C) - 2·n(B∩C) + 3·n(A∩B∩C) = 30

38 + 12 + 24 - 2·n(A∩B) - 2·n(A∩C) - 2·n(B∩C) + 24 = 30

- 2·n(A∩B) - 2·n(A∩C) - 2·n(B∩C) = -68

n(A∩B) + n(B∩C) + n(A∩C) = 34

Therefore, the number of students that like only two of the activities = 34.

8 0

3 years ago

A farmer plans to fence a rectangular corral. The diagonal distance from one corner of the corral to the opposite corner is five

garik1379 [7]

Answer:

Length of diagonal is 7.3 yards.

Step-by-step explanation:

Given: The diagonal distance from one corner of the corral to the opposite corner is five yards longer than the width of the corral. The length of the corral is three times the width.

To find: The length of the diagonal of the corral.

Solution: Let the width of the rectangular garden be <em>x</em> yards.

So, the length of the diagonal is $x+5$

width of the rectangular corral is $3x$

We know that the square of the diagonal is sum of the squares of the length and width.

So,

$(3x)^{2} +x^{2} =(x+5)^{2}$

$9x^{2} +x^{2} =x^{2}+10x+25$

$9x^{2}-10x-25=0$

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

$x=\frac{10\pm\sqrt{(-10)^{2} -4(9)(-25)} }{2(9)}$

$x=\frac{10\pm\sqrt{100}}{18}$

Since, side can't be negative.

$x=\frac{5}{9}+\frac{5}{9}\sqrt{10}$

Now, length of the diagonal is

$5+\frac{5}{9}+\frac{5}{9}\sqrt{10}$

Hence, length of diagonal is 7.3 yards.

4 0

3 years ago

What is the slope of the line on the graph?<br> The two coordinates are ( 3, -3) and ( 0, -1 )

Drupady [299]

Answer:

The slope is -2/3.

Step-by-step explanation

Let m represent the slope.

m= rise/run= y2-y1/x2-x1

-1 - (-3)/0-3

2/-3

-2/3

3 0

2 years ago

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