MATHEMATICS HIGH SCHOOL

Which of the following expressions represents "three times the difference between t and y"?y - 3t
3t-y
3(t-y)

Answers

Answer 1

Answer:

The expression that represents "three times the difference between t and y" is $\bold{3(t - y)}$

What is expression?

"It is a mathematical statement which consists of numbers, variables and some mathematical operations."

For given question,

We need to write an expression for the statement "three times the difference between t and y"

The statement "the difference between t and y" in mathematical expression form would be t - y

Now, we write "three times the difference between t and y" in expression form as,

$3 * (t - y) \n= 3(t - y)$

Therefore, the expression that represents "three times the difference between t and y" is $\bold{3(t - y)}$

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Answer 2

Answer: 3 times the difference of t and y :
3(t - y)

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What is the slope of the line that contains the points (5, 5) and (8, 3)?
a. b.
c. d.

Answers

slope=rise/run
changy/changx
slope=(y2-y1)/(x2-x1)

(5,5) and (8,3)
slope=(3-5)/(8-5)=-2/3

slope=-2/3

One half of the sum of one and a number

Answers

(1 + x)/2 There you go

What is the correct solution to this problem? A number divided by 7 is 6 less than –8.

What is the number?

A.
–98

B.
–56

C.
–14

D.
–7

Answers

-98 is answer If -98 is divided by 7 -98/7 = -14 We get -14 Which is 6 less than -8 As, -8 - 6 = -14

There are 376 stones in three piles. The second pile has 24 more stones than the first. The third pile has twice as many stones as the second. How many stones in each pile?

Answers

Let the stones of each piles be x, y and z respectively.

thus, x + y + z = 376

x=x
y = x + 24
z= 2y = 2(x+24)

This becomes x + x + 24 + 2(x+24) = 376

= 4x + 24 + 48 = 376

= 4x + 72 = 376

Thus, 4x = 304

Thus, x = 76

and y = 76 + 24 = 100

and z = 2 x 100 = 200

Thus, first pile has 76 stones, second pile has 100 stones and third pile has 200 stones

As part of a class project, a university student surveyed the students in the cafeteria lunch line to look for a relationship between eye color and hair color among students. This table contains the results of the survey. What percentage of the sample population had blue eyes and black hair?2.97%

10.59%

10.35%

28.05%

Answers

You forgot your table, but I will give an example as for how to answer this question: You need to multiply the percentage of people with black hair by the percentage of people with blue eyes. best change the percentage into numbers.

An example:

people with blue eyes: 25%, which is 1/4
People with black hair: 30%, that is 3/10

so we multiply:
$(1*3)/(4*10) = (3)/(40) =0.075=7.5%$ %

This is just an example, you need to insert your numbers!

What is the average rate of change of the function f(x)=5(2)^x from x = 1 to x = 5