Mathematics High School

HELP PLS ASAP I WILL GIVE 50 points and brainliest PLS

The variable z varies jointly with x and y. Also, z = -75 when x = 3 and y = -5.

What equation describes this variation?
z = kxy
What is the constant of variation?
k =

Answers

Answer 1

Answer:

Maybe is 2y

Step-by-step explanation:

Answer 2

Step-by-step explanation:

z = kxy, where k is a real constant.

We have z = -75, x = 3, y = -5.

(-75) = k(3)(-5)

-75 = -15k

k = 5.

Related Questions

A family is calculating the cost for one semester of college next year. Each hour of class will cost $155. A scholarship gift of $64 can be deducted from costs. If h is the number of hours taken, and c is the total cost, which equation can be used to calculate the total tuition costs for a semester?

C=89h

C=155h+64

C=155h-64

C=-155h-64

Answers

Answer:

c=155h-64

Step-by-step explanation:

you mulitply the cost of the classes by the amount of hours, then you deduct the scholarship gift(64) from the total and get your total cost of the semester

What is the value of X

Answers

Answer:

The value of x is 15

Step-by-step explanation:

If a line intersected two parallel lines, then some pairs of angles are formed

Alternate interior angles, equal in measuresAlternate exterior angles, equal in measuresCorresponding angles, equal in measuresAdjacent interior angles, the sum of their measures is 180°

In the given figure

∵ There are two parallel lines intersected by another line

∵ The angles of measures (4x + 2) and 62° are alternate interior angles

∴ Alternate interior angles are equal in measures

∴ 4x + 2 = 62

→ Subtract 2 from both sides

∵ 4x + 2 - 2 = 62 - 2

∴ 4x = 60

→ Divide both sides by 4

∴ x = 15

∴ The value of x is 15

Find the area.

A. 91 ft

B. 78ft

C.77 ft

D. 105ft

Answers

Answer:

78

Step-by-step explanation:

11(a) + 15(b) / 2×6(h)

Write in slope-intercept form an equation of the line that passes through the given points (4, 1), (8, 2)

Answers

Find slope first
(2-1)/(8-4) = 1/4
Format: y = mx + b
y = 1/4x + b
Plug in one point
1 = 1/4(4) + b, b = 0
Solution y = 1/4x

The slope-intercept form of the line is [tex]y=\dfrac{1}{4}x[/tex].

Given:

A line passes through the two points [tex](4,1)[/tex] and [tex](8,2)[/tex].

To find:

The slope-intercept form of the line.

Explanation:

The slope-intercept form of a line is:

[tex]y=mx+b[/tex]

Where, [tex]m[/tex] is slope and [tex]b[/tex] is the y-intercept.

The line passes through the two points [tex](4,1)[/tex] and [tex](8,2)[/tex]. So, the equation of the line is:

[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]

[tex]y-1=\dfrac{2-1}{8-4}(x-4)[/tex]

[tex]y-1=\dfrac{1}{4}(x-4)[/tex]

Using the distributive property, we get

[tex]y-1=\dfrac{1}{4}(x)+\dfrac{1}{4}(-4)[/tex]

[tex]y=\dfrac{1}{4}x-1+1[/tex]

[tex]y=\dfrac{1}{4}x[/tex]

Therefore, the slope-intercept form of the line is [tex]y=\dfrac{1}{4}x[/tex].

Learn more:

https://brainly.com/question/14455429

What is the area of this face?
10 in.
20 in.
5 in.
10 in.
10 in.
5 in.
10 in.

Answers

The picture is missing tell me what it is I will answer in comments

.
Dilate the quadrilateral by a scale factor of 1/2. What will the coordinates of B' be?
Type your answer as a coordinate.

Answers

Answer:I forgot how to do that

Step-by-step explanation:

(1,1) because it’s pre-image coordinates is (2,2) and you simply multiply both by 1/2 and get (1,1)

solve the system of equation
2x-y-3z=20
3x+y+6z=4
x+2y+9z=-16

Answers

What are you solving for.?

What is the area of a rectangle with vertices
(-1,-4), (-1,6), (3, 6), and (3,-4)?
16 square units
24 square units
36 square units
40 square units

Answers

Answer:

40squared units!

I hope it will be useful.

Answer: 40 square units

Step-by-step explanation:

I took the assignment

Please what’s the answer to this ?

Answers

Answer:

x=-10

Step-by-step explanation:

so a triangle is 180 degrees

look at this all sides are congruent so all angles are 60

60*3=180

now solve for x

x+70=60

x=-10

Find the missing quantity in the double number line.

Answers

Step-by-step explanation:

[tex]\frac{3}{12} =\frac{x}{28} \\28(\frac{3}{12} )=x\\x=7[/tex]

Answer:

7

Step-by-step explanation:

we first divide 12 by 3 and we get

[tex]\frac{12}{3}=\frac{4}{1}[/tex]

that means:

for 4 pints we have 1 pitchers

so 28=4*7

[tex]\frac{4}{1}*\frac{7}{7}=\frac{28}{7}[/tex]

so that means for 28 pints we have 7 pitchers

For the solution to the inequality in the previous problem, list all integers from -10 through 10 that will make the
inequality a true statement when substituted for "n"? (The integers for -10 through 10 are shown below.)
{-10,-9,-8, -7,-6, -5, -4,-3,-2,-1,0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
HELP PLEASE HURRY
ILL GIVE 30 POINTS AND MOST BRAINLIEST

Answers

Answer: -10, -7, -5, -2, -1, 3, 4, 8, 9

Step-by-step explanation:

I WILL GIVE BRAINLIEST! PLEASE ANSWER FAST!

Answers

Answer:

20

50+35=80

180-80= 100

100-80=20

2x + 3 = x -4
what is the answer ​

Answers

Answer:

Step 1: Subtract x from both sides.

2x+3−x=x−4−x

x+3=−4

Step 2: Subtract 3 from both sides.

x+3−3=−4−3

x=−7

Answer:

x=−7

please help me i will give you brainliest!

Answers

Answer:

the photo is un clear I can answer it but add a better photi

Answer:

y = [tex]\frac{1}{2}[/tex]x + 4

Step-by-step explanation:

y-intercept = 4

slope = [tex]\frac{1}{2}[/tex] (use rise over run to solve for slope)

x-intercept = -8

(The picture is a little blurry so this is the best I could make out of it)

Austin correctly answered 92% of the questions on a geography quiz. Liz answered 47 of the 50 questions correctly.

Who earned the higher score? Compare their scores.


Austin answered 47 of the questions correctly, which is greater than 94%, so Liz earned the higher score.


Austin answered 47 of the questions correctly, which is less than 92%, so Liz earned the higher score.


Liz answered 47 of the questions correctly, which is less than 92%, so Liz earned the higher score.


Liz answered 47 of the questions correctly, which is greater than 92%, so Liz earned the higher score.

Answers

Answer:

So if you do the math liz got a 94 so two points higher than Austin so the answer is the last one

Step-by-step explanation:

Answer:d liz had the higher score

Step-by-step explanation:

calculator

HELP WILL MARK BRAINLIEST

Answers

Answer:

i think d

Step-by-step explanation:

im so sorry if this is wrong but im almost positive its d

please mark brainliest

No, it fails the vertical line test.

If you take your pencil or your finger and hold it upright, parallel to the y axis, and move it from left to right your pencil or finger will thought the line in multiple places at the same time. This is the vertical line test and because it hits multiple places on the line at the same time it fails the test. This is telling you that an x value has more than one y value, so it is not a function.

Help i need help on this question plis​

Answers

the answer is to the question is b. 55

Which of the following graphs represents a function choose all that apply

Answers

Answer:

where the graphs?

Step-by-step explanation:

For his long distance phone service, dale pays a $6 monthly fee plus 8 cents per minute. Last month, Dale's long distance bill was $21.28. For how many minutes was dale billed?

Answers

Answer:

he was billed for 147 minutes

Step-by-step explanation:

I got it right

Find the total cost of buying a product that cost $12 if it is 25% off. DO NOT PUT A $. Only numbers.

Answers

Answer:

the answer will be 9 dollars

Answer:   9

Explanation:

The discount of 25% off means you save 0.25*12 = 3 dollars, meaning the final cost is 12-3 = 9 dollars.

Or you can think of it like this: if you save 25%, then you still pay the remaining 75%. So 0.75*12 = 9 dollars is the total cost.

HELP

Identify the property: Adding 0 to any number leaves it unchanged. For example 5+0=5.

Answers

Answer:

additive identity

Step-by-step explanation:

additive identity. I don't really know how to explain it. There is just a fact

Answer:

additive identity

Step-by-step explanation:

that is the answer

Bula went to Target and bought a new jacket. The price tag said $85 but the sign on the rack said
20% off the price tag. How much did Bula pay for the jacket?
$17
$65
$70
$68

Answers

85 * 0.20 = 17
85 - 17 = $68
He paid $68 for the jacket
68 dollars paid for the jacket

What is the answer to 0.5x(y - z) in distributive Property?

Answers

Answer- 0.5xy-0.5xz

1. Four family members attended a
family reunion. The table below
shows the distance each person
drove and the amount of time each
person traveled.
Fathly Reunion Travel
Name Distance
176 miles
Laura 150 miles
Nathan 1125 miles
Raquel 286 miles
Travel Time
3 hours 12 minutes
2 hours 30 minutes
2 hours 15 minutes
hours 24 minutes
of each person drove ar a constant
Fate, we drove the fastest (in miles
per hour
Hank
CNR
D Raquel

Answers

Answer:

i think it is the first answer

Step-by-step explanation:

What is -6/5 divided by -1/2

Answers

Answer:

.6

Step-by-step explanation:

Answer:

18/5, 3 3/5

Step-by-step explanation:

can someone help me please 15-6(m+1)-34+4m

Answers

Answer:

-2m-25

Step-by-step explanation:

Answer:

-2m-25

Step-by-step explanation:

15-6(m+1)-34+4m

distribute -6 to m and 1

15-6m-6-34+4m

15-6-34=-25

-6m+4m=-2m

-2m-25(answer)

120 pupils went on a feildtrip . 55% of the pupils were girls and the rest were boys. How many boys went on the trip?

Answers

Answer:

54 boys went in the trip

Step-by-step explanation:

55% of 120 is 66 and 66 minus 120 is 55

Answer:

number of boys are 54. ...

The expression 2a+3b gives the cost (in dollars) for a shirts and b pairs of pants at a garage sale. A. The cost for 1 shirt is $ and the cost for 1 pair of pants is $ . B. The total cost for 5 shirts and 5 pairs of pants is $ . Question 2 c. Is $20 enough to buy 7 shirts and 2 pairs of pants?

Answers

Answer:

Step-by-step explanation:

If 2a+3b gives the cost (in dollars) for a shirts and b pairs of pants at a garage sale

a) To get cost for 1 shirt and the cost for 1 pair of pants, we will substitute a = 1 abd b = 2 into the expression given

Cost = 2(1) + 3(2)

Cost = 2 + 6

Cost = $8

Hence cost for 1 shirt and the cost for 1 pair of pants is $8

b) For the total cost for 5 shirts and 5 pairs of pants;

a = 5 and b= 5

Cost = 2(5)+3(5)

Cost = 10 + 15

Cost = $25

Hence the total cost for 5 shirts and 5 pairs of pants is $25

c) To check whether $20 will be enough to buy 7 shirts and 2 pairs of pants, we will substitute a =  7 and b = 2 into the expression;

Cost = 2(7)+3(2)

Cost = 14 + 6

Cost = $20

Hence $20 will be enough to buy 7 shirts and 2 pairs of pants

helppp will give brainliest

Answers

Answer:

1/3 is the slope of the line

the yellow one is correct

pls pls answer this lol

Answers

Step-by-step explanation:

V101.08 is your questions answer

Answer:

10

Step-by-step explanation:

Firstly, check for square roots above and below rt(101) that you know.

Below: rt(100) = 10

Above: rt(121) = 11

As rt(100) is the closest to rt(101), your answer will be 10.

Hope this helps! :D

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