Mathematics College

What is the value of z in the equation 10z + 15 = -5

Answers

Answer 1

Answer:

Z = 2

Step-by-step explanation:

10z+15=-5

subtract 15 from both sides

10z=-20

divide both sides by 10, leaving z by itself.

20 divided by ten is 2

so z =2

Related Questions

PLEASE HELP ME BEST ANSWER GETS BRAINLIEST NO SCAMS PLEASE!
This is an example of a random sample: Surveying people in the library about whether they like to read books.

True


False

Answers

Answer:

False

Step-by-step explanation:

People reading in a library are most likely going to like to read books

Answer:

false i thin if not sorry

Step-by-step explanation:

YEE YEE

If two objects travel through space along two different curves, it's often important to know whether they will collide. (Will a missile hit its moving target? Will two aircraft collide?) The curves might intersect, but we need to know whether the objects are in the same position at the same time. Suppose the trajectories of two particles are given by the vector functions for t 0. Do the particles collide? If they collide find t. If not enter NONE.
r1(t) = t^2, 8t − 15, t^2
r2(t) = 11t − 30, t^2, 13t − 40
t=

Answers

Answer:

Step-by-step explanation:

[tex]r_1(t) = < t^2 , 8t-15,t^2> \\ \\ r_2(t) = < 11t-30, \ t^2 , \ 13t-40> \\ \\ at \ r_1 = r_2 \\ \\ t^2 = 11t - 30 , \ \ \ \ \ \ \ \ \ \ \ \ 8t - 15 = t^2 , \ \ \ \ \ \ \ \ \ t^2 = 13t -40 \\ \\ t^2 - 11t + 30\ \ \ \ \ \ \ \ \ \ \ \ t^2 -8t + 15 , \ \ \ \ \ \ \ \ \ \ \ \ t^2 -13t + 40 \\ \\ t^2 -8t-3t + 30=0 \ \ \ \ \ \ t^2 - 2t -4t + 15=0 \ \ \ \ \ \ t^2 - 1t - 13t + 40 =0[/tex]

[tex](t-6)(t-5) \ \ \ \ \ \ \ \ \ \ \ (t-5)(t-3) \ \ \ \ \ \ \ \ \ \ \ (t-5)(t-8)[/tex]

[tex]\mathbf{The \ common \ value \ of \ t \ = \ 5}[/tex]

Help meeeeeeeeeeeeeeeeeeeeee

Answers

the light blue one, i thinkkk

Answer:

The equation model for the transformed graph f(x) = -5×+ 3 -6.

Simplify 8+5h-2+h-10+3h

Answers

Answer:

-4+7h

Step-by-step explanation:

Answer:

9h-4

Step-by-step explanation:

8+5h-2+h-10+3h

-4+5h+h+3h

What's the probability of the compound event for. A bag contains 4 red, 8 blue, 6 yellow and 2 green marbles. Maria selects a marble, puts it back and then selects a second marble. P (blue, red)

Answers

Given:

Number of red marbles = 4

Number of blue marbles = 8

Number of yellow marbles = 6

Number of green marbles = 2

To find:

The probability of getting a blue marble then a red marble, i.e., P(blue, red).

Solution:

Using the given information,

The total number of marbles = 4+8+6+2

                                                = 20

Probability of getting a blue marble in first draw is

[tex]P(Blue)=\dfrac{\text{Number of blue marbles}}{\text{Total number of marbles}}[/tex]

[tex]P(Blue)=\dfrac{8}{20}[/tex]

[tex]P(Blue)=\dfrac{2}{5}[/tex]

Maria selects a marble, puts it back and then selects a second marble. It means the total number of marbles remains the same.

[tex]P(red)=\dfrac{\text{Number of red marbles}}{\text{Total number of marbles}}[/tex]

[tex]P(red)=\dfrac{4}{20}[/tex]

[tex]P(red)=\dfrac{1}{5}[/tex]

Now, the probability of getting a blue marble then a red marble is

[tex]P(blue,red)=\dfrac{2}{5}\times \dfrac{1}{5}[/tex]

[tex]P(blue,red)=\dfrac{2}{25}[/tex]

Therefore, the required probability P(blue, red) is [tex]\dfrac{2}{25}[/tex].

2) The difference of two numbers is 13. Their sum is 85. Find the numbers.
What’s the answer

Answers

Answer:

49 and 36

Step-by-step explanation:

49 - 36 = 13

49 + 36 = 85

Answer:solving we get y=6  x+y=85

x-y=13

add the equations

2x=98

x=98/2

x=49

85-49=36

the numbers are 49 and 36

Hope this helps have a awesome night/day❤️✨

Step-by-step explanation:

Jake needs a new camera for school. He has already saved $110 and he earns $9 per hour in a photography internship.
If the equation s = 9h + 110 represents that relationship, how many hours will he need to work (h) in order to save (s) $425 to purchase
his camera?


Help

Answers

35 Hours

Explanation: Put 425 in for s the variable needed to be saved. Then solve like a regular equation. Step-by-step in the photo below.

Please Help. Will give Brainliest.

Answers

Answer:

translation.........

Find the volume of each prism 6B+4 3/4H+ 6L in. WHOEVER ANSWERS FIRST GETS 30 PTS!!!!

Answers

Answer:

Okay, im sorry i have no idea how to work dis

Can someone please help me?

Answers

Answer:

#25 is left, #27 is between, #28 is below, and #26 is first i think.

Step-by-step explanation:

Answer: #25 is left, #27 is between, #28 is below, and #26 is first i think.

Step-by-step explanation:

DO THIS FOR BRAINLIEST PLEASE
Joey wants to find out what sport 7th grade girls like the most. He asks "Is basketball your favorite sport?"

This question is biased.


True OR False

Answers

Answer:

True

Step-by-step explanation:

I hope I'm right

Answer:

False

Step-by-step explanation:

No 7th grade girl likes basketball the most unless they're going through their tomboy phase of life.

Use a double number line to answer Problem 1-5.


Tanner collected 360 cans and bottle while fundraising for his baseball team. This eas 40% of what Reggie collected. How many cans and bottles dif Reggie collect?​

Answers

Answer:

900 cans and bottles.

Hope that helps!

Step-by-step explanation:

360 / 4 = 90

90 x 100 = 900

Hope that helps!

send helpp pleaseeeeee​

Answers

Answer:

1. VR and TS

2. TS and RS

3. TV and RS

Step-by-step explanation:

The length of Andy's bed is 123 what is the length in feet

Answers

Answer:

4.068 feet

Step-by-step explanation:

simplificar y sumar

12 + 7 + 10 =
---- ---- ---

Answers

Answer:

12 + 7 = 19

19 + 10 = 29

answear = 29

12 + 7 = 19 + 10 = 29

total : 29

Which of the following shapes have an area of 48 square feet? Select all that apply.
A scalene triangle with a base of 8 feet and a height of 6 feet.
A right triangle with a base of 9 feet and a height of 10 2/3 feet.
A rectangle with a base of 19.2 feet and a height of 2.5 feet.
A parallelogram with a base of 16 feet and a height of 3 feet.

Answers

I think 2,3,4 or B,C,D would be correct.

The area of a triangle is (b•h)/2
And the area of a rectangle and parallelogram would just be b•h

1) 8(6) = 48/2 =24

2) 9(10 2/3) = 96/2 =48

3) 19.2(2.5) = 48

4) 16(3) = 48

Hope this is right and hope it helps. Have a good day

f(x)=3x(x^2+4x-5) evaluate f(-2)​

Answers

Answer:

f(-2) = 54

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

f(x) = 3x(x² + 4x - 5)

f(-2) is x = -2

Step 2: Evaluate

Substitute in x  [Function]:                                                                             f(-2) = 3(-2)[(-2)² + 4(-2) - 5][Brackets] Evaluate exponents:                                                                     f(-2) = 3(-2)[4 + 4(-2) - 5][Brackets] Multiply:                                                                                         f(-2) = 3(-2)[4 - 8 - 5][Brackets] Subtract:                                                                                        f(-2) = 3(-2)[-4 - 5][Brackets] Subtract:                                                                                        f(-2) = 3(-2)(-9)Multiply:                                                                                                           f(-2) = -6(-9)Multiply:                                                                                                           f(-2) = 54

carolette is making necklace's in blue and orange her ratio of blue beads to orange beads are 3 to 2 how many beads will carolette need for a necklace of 60 beads

Answers

Answer:

Carlotta needs 24 orange beads for her necklace.

Step-by-step explanation:

For each necklace, the ratio of blue beads to orange beads is 3 to 2. or 3:2

Total beads given to make a necklace is = 60

Let the number of orange beads be = x

The ratio is 2 orange beads out of 5 total beads

So, we can represent the ratio as:

x=24

Hence, Carlotta needs 24 orange beads for her necklace.

Blue beads needed =  

We can also check the ratio for blue beads to orange beads:

Divide by 4, we get

Divide by 3, we get

 ...... (the given ratio)

Therefore, Carlotta needs 24 orange beads for her necklace

Can somebody plz tell me which one is congruent or supplementary

Answers

Number 9 is congruent. I’m not sure about 8 and 10 but 10 looks like it would be supplementary and 8 congruent and 11 congruent. I’m not 100% on 8,10,11 but for 9 it is congruent.
8,9,11 are congruent while 10 is supplementary( two angle =180)

HELP PLSSSSS I BEG YOUUUUUUUUUUUUUUUUU

Answers

Answer:

just shade in the same thing

just shade in the same thing


The prism shown has a volume of 35 cm^3
Work out h, the height of the triangular cross section.
Length =7 cm
Base=4 cm

Answers

Answer:

[tex]Height = 2.5[/tex]

Step-by-step explanation:

Given

[tex]Volume = 35[/tex]

[tex]Length =7[/tex]

[tex]Base=4 cm[/tex]

Required

Determine the height

The volume is calculated as:

[tex]Volume = Height * Base\ Area[/tex]

Since, it has a triangular cross-section, the expression becomes:

[tex]Volume = Height * \frac{1}{2} * Base * Length[/tex]

So, we have:

[tex]35 = Height * \frac{1}{2} * 4 * 7[/tex]

[tex]35 = Height * 14[/tex]

[tex]Height = 35/14[/tex]

[tex]Height = 2.5[/tex]

in a class the ratio of boys to girls is 3/2. if there are 12 boys in the class, how many girls are there? ​

Answers

Answer:

8

Step-by-step explanation:

3 times 4 is 12 and 2 times 4 is 8

8
12/3=4 so that mean you have to multiply 2x4 you get 8

A kite is shown below with given dimensions in inches. What is the area in square units

Answers

Answer:

320

80

Step-by-step explanation:

List three solutions to the following equation: 2x + 4y = 24 Please remember to write your answers in the correct (x,y) format.

Answers

Answer:

(-4,8)

(12,0)

(4,4)

Step-by-step explanation:

graph it


Reasoning There are 27 more green ca
in the parking lot. What percentage of
lot are green? What percent are black

Answers

hi  13% are black and 13% are green

Which choice shows 1/4 of 8

Answers

Answer:

there is no picture so I dont know what i have to do..

what is the slope of (4,7) (9,7)?! please help i tried omni and it didn't give me an answer

Answers

Answer:

0

Step-by-step explanation:

Y - 5= - (5 - y)
Does it have a solution?

Answers

Answer:

infanite

Step-by-step explanation:

In the first 15 seconds of the rollercoaster, passengers are carried up a 90-meter hill, plunged down 62 meters, and quickly taken back up a 38-meter rise. How much higher or lower from the start of the ride are they after these 15 seconds?​

Answers

Answer:

90-62=28

28+38=66

90-66=24

in 15 seconds they are 24 meters lower

whats 1+0+9+5+5+3+9+3+112-123+7-7x0

Answers

Step-by-step explanation:

First, multiply -7 by 0.

-7×0=0

Now, do the adding and subtracting.

1+0=1

1+9=10

10+5=15

15+5=20

20+3=23

23+9=32

32+3=35

35+112=147

147-123=24

24+7=31

31+0=31

The answer is: 31

Do it step by step for example 1+0 then the rest then you should get the answer then check your work twice to make sure it is right which the answer would be:31
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