Mathematics High School

For the expression 15-15z to have a negative​ value, what must be true about the value of ​z?

Choose the correct answer.

A. The value of z has to be 0.

B. The value of z has to be less than 1.

C. The value of z has to be greater than 1.

D.The value of z has to be negative.

Answers

Answer 1

Answer:

C. The value of z has to be greater than 1

Step-by-step explanation:

[tex]15 - 15z < 0 \\ - 15z < - 15 \\ 15z > 15 \\ z > 1[/tex]

Related Questions

Please help me with this..

Answers

I believe the answer is 7.18

math work is hard pt1

Answers

Answer:

1. y = 3x - 2

2. [tex]y = \frac{1}{2} [/tex]

3. [tex]y = \frac{3}{2} x + 4[/tex]

4. y = -3x + 5

5. y = x - 6

▪Happy To Help <3

Help Please! △ABC is given with line m drawn through A parallel to BC¯¯¯¯¯¯¯¯. In the course of proving that the interior angle measures of △ABC sum to 180°, which of the following will be shown? Select the two correct answers.

∠1≅∠B

∠1≅∠C

m∠1+m∠BAC+m∠2=180°

m∠BAC+m∠C+m∠2=180°

∠2≅∠A

Answers

not sure but i thibj the second one

An online company clothing company sells custom sweatshirts. The company charges $6.50 for each sweatshirt and a flat fee of $3.99 for shipping. Write a linear function in the form `y=mx+b`that represents the total cost, y, in dollars, for a single order of x sweatshirts.

Answers

Answer:

y = 6.5x + 3.99

Step-by-step explanation:

Let

Total cost = y

Single order of sweatshirts = x

Each sweat shirt = $6.50

We are given the linear function =

y = mx + b

Hence:

y = $6.50 × x + $3.99

y = 6.5x + 3.99

Therefore, the linear function in the form y=mx+b that represents the total cost is given as:

y = 6.5x + 3.99

Allen is 5 years older than Cassandra. In 4 years, he will be twice as old as Cassandra was 2 years ago. Find their ages.

Answers

Answer:

C = 13, A = 18

Step-by-step explanation:

A = 5 + C

A + 4 = 2(c-2)  

5+c+4 = 2c - 4

9 + c = 2c - 4

c = 2c - 13  

-1c = -13

c = 13

A = 5 + 13  

A = 18

4.5m is__% of 90cm. And 90cm is ___% of 4.5m.

Pls help me! This is really hard.

Answers

You got this. Just a proportional issue once units of cm and m is converted.

1 meter is 100 centimeters (deci is 10, centi is 100, milli is 1000)

4.5 meter = 4.5 x 100 or 450 centimeters

(450/90)x100= 500%. 4.5 meters is 5 times longer than 90 cm
Cross check: 5x90=450

(90/450)x100= 20%
Cross check: .2x450=90

This has been answered before on Brainly

4.5m is 500% of 90cm

90cm is 20% of 4.5m.

Graph the following
y−2=2/3(x+4)

Answers

in the future you can go to desmos graphing calculator

The sum of a number and 13 is the same as the difference of 29 and the number. Find the number.

Answers

Answer:

16

Step-by-step explanation:

im pretty sure

So what is the answer to The spinner below is spun twice. What is the probability of the arrow landing on a 3 and then on an odd number?

Answers

Answer: nijja what

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

find the smaller number of two consecutive odd numbers such that the sum of the larger numbers and twice the smaller number is 27 less than four times the smaller number​

Answers

Answer: 29

Step-by-step explanation:

Let the smaller number be x

Let the bigger number be x+2

The information given in the question can be represented in a equation as:

x + 2 + 2x = 4x - 27

3x + 2 = 4x - 27

4x - 3x = 27 + 2

x = 29

The smaller number is 29

Rite the phrase as an expression. Then evaluate when y=20. 3 less than the quotient of a number y and 4 Expression: When y=20, the value of the expression is .

Answers

Answer:

[tex]\frac{y}{4} - 3[/tex]

[tex]\frac{y}{4} - 3 = 2[/tex] -- when y = 20

Step-by-step explanation:

The quotient of y and 4 can be represented as:

[tex]\frac{y}{4}[/tex]

3 is less the above expression is:

[tex]\frac{y}{4} - 3[/tex]

So, the required expression is: [tex]\frac{y}{4} - 3[/tex]

When y = 20, we have:

[tex]\frac{y}{4} - 3 = \frac{20}{4} - 3[/tex]

[tex]\frac{y}{4} - 3 = 5 - 3[/tex]

[tex]\frac{y}{4} - 3 = 2[/tex]

Answer:

555

Step-by-step explanation:

edge test 100%

£1 = $1.5 dollars
Convert £20 into dollars

Answers

Answer:

$30

Step-by-step explanation:

1.5 x 20 = 30

The answer is 30 as 1.5x20 = 30

move the numbers to the lines to appear in order from least to greatest.

_,_,_,_,_
|-2/3| , |0.8| , 0.75 , 1/4 , -0.3​

Answers

-2/3, -0.3, 1/4, 0.75, 0.8

Determine the solution to the system of equations:
2y - 2x = 22
y = -4x + 1

Answers

Answer: Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:(-2,9)

Equation form: x=-2 y=9

Step-by-step explanation:

Point Form:(-2,9)

Equation form: x=-2 y=9

The difference between three times a number and eight equals negative five. What is the number?

6.3
-4.3
-1
1

Answers

Answer:

it's 1

Step-by-step explanation:

when one is multiplied by three times.it gives us three and its difference result negative five 3–8 = -5

Which statement is true ?

Answers

Answer:

the second one

Step-by-step explanation:

Jupiter,Saturn or Uranus?

Answers

Answer:

Jupiter :)

Step-by-step explanation:

V/7=5
Solve for v
(I need help right now)

Answers

Answer:

V=35

Step-by-step explanation:

[tex]\frac{V}{7} =5[/tex]

Start by multiplying by 7 on both sides:

V=35

Answer:

35

Step-by-step explanation:

5 times 7 is 35 so v divided by 7 is 5

A calculator is listed for $110 and is on clearance for 35% off. Sales tax is 7%. What is the cost of the calculator? ​

Answers

Answer:

$76.51

Step-by-step explanation:

I found how much the calculator cost on clearance first. Then I found the sales tax and added them together.

Evaluate the expression.
(-5)(5) +5=

Answers

Answer:

Step-by-step explanation:

Here you go mate

Step 1

(-5)(5) +5  Equation

Step 2

(-5)(5) +5 Simplify

(-5)(5) +5

Step 3

(-5)(5) +5  Add and multiply them

(-25)+5

answer

-20

3y + x = 12
What is the value of x when y = 3?

Answers

Step-by-step explanation:

3y + x = 12

When y = 3, we have 3(3) + x = 12.

=> 9 + x = 12, x = 3.

The distance between Dallas, TX and Houston, TX is 384 kilometers. There are approximately 8 kilometers in 5 miles. Which measurement is closest to the number of miles between these two cities?

Answers

238.6 miles between dallas and houston

Order from least to greatest. 41/50, .83, 80%

Answers

Answer:

Step-by-step explanation:

Ok so if we turn these all to frections with a denominator of 100 we will have

82/100, 83/100, and 80/100. So it will be 80%, 41/50, 0.83.

Answer:

80%, 41/50, 0.83.

___________________________

Showing Work

Using the given inputs:

41/50 83 80%

Rewriting these inputs as decimals:

41/50 83 80%

0.82 83 0.8

Sorting this table by decimal values in order from least to greatest:

80%   41/50   83

0.8 < 0.82 < 83

Therefore, the sorted inputs in order from least to greatest is:

80% < 41/50 < 83

Hope this helps!

Is this question -true or false- I dont know

Answers

Answer: FALSE

Step-by-step explanation:

the answer is false

Write 5.164 x 10^-4 in standard form.*

Answers

Answer is 0.0005164x

An online clothing company sells custom sweatshirts. The company charges
$5.50 for shipping plus $8.00 for each sweatshirt. Write a linear function rule that models the total
costy (in dollars) for any number of sweatshirts x

Answers

Well, the equation for this problem is 5.50x + 8.00.
The y-intercept / initial value in the problem is $5.50 because that is what you have to pay and it’s basically your initial value whereas $8.00 is your slope or rate if change because that is why you have $8.00x which means that whatever number of sweatshirts you buy, they will each cost you $8.00.

please help im so lost lol

Answers

Answer:

B, C, and E

Step-by-step explanation:

6(x+4)+35

B) 6x+ 6(4)+ 35 (They just distributed the 6 to the x but left the 4 undistributed)

C) 35+6(x+4) (If addition or subtraction, moving the numbers won't change the sum/difference)

E) 6(4+x)+35 (If addition or subtraction, moving the numbers won't change the sum/difference)

Answer:

I Honestly Dont Know Sorry haahahhahaha Go F ur self

Step-by-step explanation:

In degree measure, the angles pie/3, pie/4, and pie/2 are respectively

Answers

Answers:

pi/3 radians = 60 degreespi/4 radians = 45 degreespi/2 radians = 90 degrees

=======================================

Explanation:

To apply the conversion, we use the idea that pi radians is equivalent to 180 degrees

pi radians = 180 degrees

To convert from radians to degrees, we'll multiply by the conversion factor (180/pi)

This leads us to the following:

(pi/3 radians)*(180/pi) = (pi*180)/(3*pi) = 180/3 = 60. So pi/3 radians converts to 60 degrees(pi/4 radians)*(180/pi) = (pi*180)/(4*pi) = 180/4 = 45. So pi/4 radians converts to 45 degrees(pi/2 radians)*(180/pi) = (pi*180)/(2*pi) = 180/2 = 90. So pi/2 radians converts to 90 degrees


The ratio of the number of adults to the number of children at a restaurant is 3: 7. Identify the choice(s) below
that represent an equivalent ratio.
A 15:35
B 6:14
C 21:9
D 8:12
E 30 : 70


Answers

Answer:6:14

Step-by-step explanation:

(01.05)
What is the equation, in slope-intercept form, of the line that passes through (0, -2)
and has a slope of -3? (5 points)
O 1) y = -3x - 2
O 2 y=-3x+ 2
O3) y = –2x+3
O 4) y = -2x - 3

Answers

Answer:

O1

Step-by-step explanation:

Slope intercept form is y=mx+b, where m is the slope and b is the y intercept.

We are given a point: (0,-2) and a slope; -3.

we can substitute the numbers into the equation above, with what we know, to find b.

-2=-3(0)+b

multiply

-2=0+b

-2=b

so the y intercept is -2.

Since we know that the slope is -3, and the y intercept is -2, the equation is y=-3x-2

Therefore O1 is your answer

Hope this helps!

Other Questions
what were americas 1st political parties? Which of the following best explains why Reggie's books fell? a population of 100 insects that live in an area 100 square meters has a density of 1 insect per square meter. whats this an example of? What is the value of x? The shape of the SO4 molecule is If you can, please leave an explanation so I can learn how to do it rathe than just copying What is the value of x? _______________ is intentionally or unintentionally using someone else's work without giving credit to the original author or creator.a.Researchb.Plagiarismc.Articulationd.Investigation Let Ln denote the left-endpoint sum using n subintervals and let Rn denote the corresponding right-endpoint sum. In the following exercise, compute the indicated left and right sums for the given function on the indicated interval. L4 for f(x)=1/x1; [2,3] I like to give people easy points so here: 2 + 4 help me to find simple present tense, technical terms, action verbs, passive voice, and technical language on this text? pleaseA mirage is one of the amazing natural phenomena that occurs on earth which is one of the planets in the solar system. Do you know how mirage happen?The beginning of the mirage was due to the difference in temperature density between cold air and hot air temperatures in the atmosphere above the earth's crust. Cool air temperatures have a denser and heavier density than hot air temperatures which have a lower density and are lighter. Because of this, the hot air layer will be close to the soil layer and trapped by the cooler air layer above it, so that the light will refract towards the horizontal line on the view and travel upwards due to the internal influence. Total internal reflection is a process of light reflection that occurs on the boundary surface between one medium and another, which has a smaller refractive index, if the angel of incidence to the second medium exceeds a certain critical angel. And the light that is in a medium with a high refractive index will travel to a medium with a lower refractive index. When this light is seen by our eyes, the we will see it as if there are shadows of types of water which are called mirage.what do you think about my homework? is it true? Please help me!Will mark brailest if you are right!!! Read the paragraph from the passage.You can help me have it, answered the sky god with a sly smile. Tezcatlipoca whispered his plan in Quetzalcoatls ear. Clouds danced and swirled as sky and wind became one.How does this paragraph impact the events in the passage?A. It explains why Tezcatlipoca and Quetzalcoatl want to bring music to Earth.B. It suggests that Tezcatlipoca and Quetzalcoatl join powers to bring music to Earth.C. It shows what happens after Tezcatlipoca and Quetzalcoatl bring music to Earth.D. It tells how Tezcatlipoca and Quetzalcoatl solve the problem of no music on Earth. Where can cleaning chemicals or toxic materials be stored find measure of angle 1 What is 7 1/2% of 60? "Out of repression into opportunity is the meaning of the war to thousandswomen," wrote Florence Thome in 1917. Which of the following statements best describes the meaning of this quote?o American involvement in WWI promises to give women another chance to assert their desire for equal rightsU.S. Involvement in the war would end public interest in the women's rights movement.The conflict between factory owners and organized labor will finally give more women the opportunity to join the labor forceO Militant suttragettes should conduct a hunger strike in order to encourage President Wilson to support women's suffrage. Crossing the Rhine River was the objective of which U.S. led battle?A. Battle of the bulgeB. Battle of Normandy C. Battle of midwayD.battle of Guadalcanal in the first quatrain miniver cheevy is described as a child of scorn whats the narrators point in using this phrase PLS PLS PLS HELP THIS IS SPANISHIM TIMED!!!