Mathematics High School

can someone help me solve 3+y=18 for y.​

Answers

Answer 1

Answer:

15

Step-by-step explanation:

I hope I'm right.

Answer 2

Answer:

Y = 15

3 + y = 18

use inverse operations to solve... subtract 3 from both sides

y = 15

Step-by-step explanation:

hope this helps!

Related Questions

Division as Fractions - Word
Name
cach problem. Make sure to write your answer as a fraction.
Henry wanted to collect 65 pounds of cans in 7 days. How much should he
collect each day to reach his goal? Which two whole numbers does your
answer lie between?

Answers

Answer:

65/7

=9.28..lies btwn 9 and 10

Step-by-step explanation:

Could 8 be a solution? Why or why not?
x2 = 49

Answers

no because if you substitute 8 for x, you would get 16=49. which is not true

Answer:

it cannot be

Step-by-step explanation:

x²=49

x=√49

x=7

Thus answer is 7 and not 8

Paul won 37 super bouncy balls playing hoops at county fair. At school he gave two to every student in his math class. He only had 3 remaining. How many students are in his class?

Answers

Answer:

17 students

Step-by-step explanation:

If he started with 37 and ended with 3 we have to subtract those three first so that we know how many we are actually working with so, 37-3=34. 34 balls is the amount distributed among the class. 34/2 is 17.

Triangle ABC is graphed on a coordinate plane with vertices at A(-3, 7), B(9,-8), and C(-5, -6). If triangle ABC is dilated
by a scale factor of 2 with the origin as the center of dilation to create A'B'C', what will be the coordinates of the dilated
vertex of B'?

Answers

Answer:

  B' = (18, -16)

Step-by-step explanation:

Dilating means to stretch or shrink a figure. The scale factor tells us how much we are stretching or shrinking. The scale factor is 2, so the coordinates are multiplied by 2.

50% of the number is 2,
the number is ??

Answers

Answer:

4

Step-by-step explanation:

just multiply it by 2 lol

Answer: 4

Step-by-step explanation:

Change the percent to a decimal by taking it out of 100. Then do 2/50%

50% = 50/100 = 1/2

2/0.5 = 4

Which rule explains why these triangles are congruent?

AAS
ASA
SSS
SAS
These triangles cannot be congruent

Answers

SAS, those lines are the S-(sides) and the angle is in the middle of that makes sense, I hope this helped!

Come on help me pretty plz

Answers

Answer:

im pretty sure its pink

Step-by-step explanation:

pink hope it’s right

The ratio of teachers to students at Priory School is 2:27


What is school's total population if there are 42 staff

Answers

Answer:

609

Step-by-step explanation:

ratio of teachers to students at Priory School =2:27

Let X= total number of both the students and the teacher

Ratio of teacher=( 2/29)X

Ratio of student is (27/29 )X

But total number of teacher = 42

2/29 ×X =42

2X= 42×29

2X=1218

X= 609

Hence, school's total population is 609

ANSWER TO 4 AND 5 PLEASE ASAP

Answers

Answer:

4) 2/6 or 1/3

5) 42/110 or 21/55

Step-by-step explanation:

4) there are two red options out of a total of 6 options, so 2/6

5) 7 red out of total of 11, so 7/11 · 6/10 = 42/110

To get the fraction 6/10:

we reduce 7 to 6 because there is one less red than originally

we reduce 11 to 10 because there is one less from the initial total

At a store closing, a universal discount rate is applied to all items. the table shows the price for three items.

Part B: To the nearest penny, what is the value of x?

A. $17.17

B. $28.62

C. $0.97

D. $10.80

Answers

Answer:

Step-by-step explanation:

the anser to this will b e c

Answer:

c

Step-by-step explanation:

The answer is c

whoever helps me ill mark brainliest​

Answers

For 12 it’s will always be 0 because it is in the middle, for 360 I think it’s -90 that’s all I know I don’t know for sure if this is correct tho

HELPP!!
Find the slope of the line that passes through these two point????

Answers

The slope is 2/1 and simplified is 2.

4. Triangle TRY was reduced to form triangle PIE.
What number best represents the scale factor used
to change triangle TRY to triangle PIE?
OON
T
A
X
1987:6 5 4 3 2 -10
0
2 3 4 5 6 7 8
2
I
-5
- ?
8

Answers

I’m not really sure I’m just gonna comment cuz I need to answer other ppl

Robert has 7,995 trading cards. He wants to put them into a book. He can fit 15 cards on each page. How many pages will he need?

Answers

533 pages.
7,995/15=533
Answer: 533
He would need 533 pages.

Point N is on line segment ABGiven AN = 14 and NB =21. Determine the length of the line AB.

Answers

64........! there ya go

Sam tosses a coin 150 times it lands on tails 90 times.

Answers

Answer:

Total number of trials =150

Chances or trials which favour the outcome H= 85

P(H)= 15085 = 0.567 (approx)

Alice bought supplies for 40.00 . If the sales tax is 7% what is the total cost?

Answers

Answer:

42.80

Step-by-step explanation:

is -3 greater or less then 4

Answers

Answer:

-3 is less than 4.

Step-by-step explanation:

Help please please please I will mark you as brainlist!

Answers

Answer:

x=2; 7

Step-by-step explanation:

Answer:

For question 4, the answer is 7. The value of x is 2.

For question 5, the value of y is 1.

PLS HELP PLS ITS TIMES ILL GIVEBRAINLIEST IF CORRECT HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: A

Step-by-step explanation:

Use the distributive property to match equivalent expressions.
-7(4 + x)
-28 + 2x
7(4 + x)
28-7X
7(4-x)
28 +7x
-7(4x)
-28-7x
Intro
Done

Answers

Answer:

by distributing you need to multiple by using the 7 in front and use that 7 to multiply each number inside

1. -7(-4+x) -> 28-7x

2. 7(4+x) -> 28+7x

3. 7(-4-x) -> -28-7x

4. -7(4-x)-> -28+7x

Which of the expressions below are equal to 3x + 9y + 15? Select all that apply.
A) 3(x + y + 5)
B) 3(3x + 3y) + 15
C) 3(x + 3y + 5)
D) 3x + 3(3y + 5)


Answers

Answer:
C) 3(x + 3y + 5)
D) 3x + 3(3y +5)

West Junior High needs to fill its swimming pool with water. Determine the amount of water it needs by finding the volume of the pool. Use the drop down menus to complete the statements.

Answers

Answer:

West junior High needs to fill its swimming pool with water. Determine the amount of water it needs by finding the volume of the pool. Use the drop-down menus to complete the statements.

First, write the

✔ formula: V = lwh

.

Next, use parentheses when you substitute

✔ 50, 25, and 3

for l,w, and h.

Now, simplify by

✔ multiplying

50, 25, and 3.

The volume of the pool is

✔ 3,750

m3.

Step-by-step explanation:

Answer:

drop down menus its B A C D

Step-by-step explanation:

Evaluate for X = 2 and y = -3.2x - 3y + x2​

Answers

Answer:

15.6

Step-by-step explanation:

[tex]x - 3y + x^2\\2 + 9.6 + 4\\= 15.6[/tex]

A taxi charges a flat fee of $3.00, plus an additional $1.25 per mile. Antonio can spend no more than $18. Choose the inequality that represents the number of miles he can ride, an describes the solution set.

Answers

Answer: 1.25m + 3 ≤ 18; Antonio can ride 12 or fewer miles

Step-by-step explanation: so you can break down the answer choices and only have a and b left because no more than means this sign: ≤

and 1.25 is the cost for each mile so your multiplying m and 1.25 and then you add that with 3.

Can someone Find f (2)

Answers

Answer:

for each x you put a 2 and times it

Step-by-step explanation:

A jogger has decided to jog as a warm-up and has decided to vary her speed from minute to minute. Below is the data of her jogging times and distances. The distance recorded is the total distance traveled from time zero up until the measured time. Please create a distance vs. time line graph to properly display this data. Be sure to include all parts of a good graph. When finished drawing your graph, answer the questions below using your graph

Answers

Answer:

how much heat is needed to raise the temperature of 20g cooper from 25c to raise the temperature of 20g of cooper from 25 c to 40c?

Step-by-step explanation:

a)Solve 3x-4=17
b)Solve x/4 - 1 = 4
c)Solve x/2 + 8 = 23

Answers

Answer:

a). 7

Step-by-step explanation:

3x-4=17

3x-4+4=17+4

3x=21

3x/3=21/3

x=7

Answer:

a)7

b) 20

c) 30

Step-by-step explanation:

a) 17 + 4 = 21

21 ÷ 3 = 7

b) 4 + 1 = 5

5 × 4 = 20

c) 23 - 8 = 15

15 × 2 = 30

A store purchases a bicycle from the manufacturer for $150. The store then sells the bicycle for $215. By what percentage did the store mark up the bicycle?

Answers

I believe it’s a 43% increase! Hope this helps
It is a 70 percent increase the person above is wrong


Describe the end behavior of each function.
f(x) = -25 + 4x² - 4x + 4

Answers

Answer:

x-> negative infinity y-> positive infinity

x->positive infinity y-> positive infinity

Step-by-step explanation:

Degree is even and leading coefficient is +ve.

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