Mathematics High School

Explain the steps used to find the solution.

3(2y + 5) = -21
6y + 15 = -21
6y = -36
Y= -6

Answers

Answer 1

Answer:

3(2y + 5) = -21

open the bracket

6y + 15 = -21

collect like terms

6y = -21-15

6y = -36

divide by the coefficient of y

y = 36÷6

y= 6

Related Questions

Sonia is older than her brother Eddie.The sums of their ages is 38.The differences is 14

Answers

Answer:

Sonia is 26

Eddie is 12

Step-by-step explanation:

Which of these cannot represent the lengths of the sides of a right triangle?


A.)3 ft, 4 ft, 5 ft
B.)6 in., 8 in., 10 in.
C.)16 cm, 63 cm, 65 cm
D.)8 m, 9 m, 10 m

Answers

D because it is talking about meters hope this helps
D can’t represent the sides of a right triangle

Right answer gets brainlist

Answers

Answer:

2057

Step-by-step explanation:

Hey I need help with this one question I don’t understand it brushed endnoteyrndjfnfjfjfiffj

Answers

the slope is -6 , -2x -6

Please help!!! Thank you!!!!!

Answers

3rd option


Hope this help!!!!

Answer:

Its the third answer choice

Step-by-step explanation:

Hope this helps

what is the area of the figure below?

Answers

109 inches is the answer! multiply the sides

ez pls just osmoene help
Which answer below represents the following mixed radical written as an entire radical?

3a2b3 18a7b113

Select one:
a. 486 a13b20 3
b. 45 a13b20 3
c. 54 a9b14 3
d. a 54 a3b14 3

Answers

C. Is the answer if I am not wrong

A shark can swim at an average speed of 25 miles per hour. At this rate, how far can a shark swim in 2.5 hours?

Answers

Answer:

62.5 miles in 2.5 hours

Hope this helped.

1. A jar contains 10 marbles, 6 marbles are red, and 4
marbles are blue. If 2 marbles are chosen one at a time
with replacement, what is the probability that the first
marble will be blue and the second marble will be red?
A 1/10
B.6/100
D. 1/25
Independent or Dependent?
Final Answer:

Answers

Answer:

1/20

Step-by-step explanation:

trust me............or not...jk its either 1/20 or 1/2 NO its 1/20

It says Use the distributive property to write the following in expanded form.
4(x+y)
write the expression using the WIRIS editor button​

Answers

Answer:

pretty sure it's 4x+4y however I'm not 100 percent sure

Alonzo has completed 44 Deliveries so far this week he needs to make 55 deliveries for the week what percentage of his delivery has Alonzo completed?80%

Answers

Answer:

80%

Step-by-step explanation:

Find 44/55 and multiply the result by 100%:  (0.8)(100%) = 80% (completed)

Factorise fully
10z -80​

Answers

Answer:

10(z-8)

Step-by-step explanation:

if you have to factor you have to have something like

number *number or number* parenthesis

10z - 80 is number *number -number so change

10 *(z-8)

The answer should be 10 ( z-8)

4 + 6 (3) + 2(5 1/2 - 1)

Answers

4+6(3)+2(5.5-1)
4+18+9
=31

simplify (4m+5n)^2+(5n+4n)^2​

Answers

Answer:

16m^2+40mn+106n^2

Tammy jumped up 9 steps. Each step was
7/10 feet high.
How high up did she jump altogether?
Write your answer in simplest form.

Answers

Answer: 6 and 3/10 0r 63/10

Step-by-step explanation:

Help me please!
If you get it right, I’ll will brainliest u!!

Answers

Answer:

Angle S is a straight angle.

Step-by-step explanation:

180° is a straight line.

HELP
HELP
ITS HARD
pls pls pls pls pls

Answers

you have to do the amount of hay one horse can eat times by how many horses there are. then you have to do that times the amount of days to see how much hay they ate overall. so that’s 21x20x14, which is 21(20x14) and that equals 5880. so the answer is C and the blank is 5880. hope this helps!

What is the value of p(b-c) when b=3,c=3 and p=-2

Answers

Answer:

0

Step-by-step explanation:

-2 (3 - 3)

distribute: -6 + 6

add: -6 + 6 = 0

Answer:

0

Step-by-step explanation:

p=-2,b=3,c=3

p(b-c)

-2(3-3)

-2(0)

0

or-2(3-3)

-6+6

0

hope it's helpful ❤❤❤❤

THANK YOU.

#

Which list orders the numbers from least to greatest?

Answers

Answer:

D)

Step-by-step explanation:

I hope this helps :)

Factor.
y^2-12y+20
i need help

Answers

Answer:

(y−10)(y−2)

Step-by-step explanation:

It’s (Y- 10) and (y-2)

what does 3x+8+9x^2 equal?

Answers

Answer:

Stays the same. OR Standard form: 9x^2+3x+8

Step-by-step explanation:

You can't factor it. When you add them it's the same bc, you can't combine anymore like terms. let me know if this helps at all? What is your objective? Tryna factor? Add polynomials? ???

I need answer ples ASAP

Answers

Oh I know this!, 43/6

Answer:

g

Step-by-step explanation:

g

What is the area of this triangle?

A=bh2

17 m²

30 m²

60 m²

120 m²

Answers

Answer:

120

Step-by-step explanation:

alls you do is plug in the numbers its not hard sweetie

Answer:

120 m2

Step-by-step explanation:

I took the test hope this helps

use the distributive property to find two expressions that are equivalent to 7(3x - 4)

please help me i cant do this anymore, i'm having a panic attack and this is all due in 4 hours

Answers

I could only figure out one... sorry! Good luck

The answer is: 21x-28

A ceramic vase that cost an antique store $5 was marked $20. What is the percentage markup on the price of the ceramic vase?
15%
75%
300%
400%

Answers

the answer would be 75%%%%

(4 + 2n) + (513 + 2).

Answers

Answer:

2n + 519

Step-by-step explanation:

Hope this helps! :)

Good luck♥

Maria sells a motorcycle for $5,000 and a car for $25,000. What is the total commission that she will earn on the sale of these two vehicles?

Answers

Maria will make 10% on 5,000 for the motorcycle and 15% on 25,000 for the car she sold

SOMEONE PLEASE HELP ME T-T
Shania has 12 coins in her pocket. Of these coins, 5 are pennies and 7 are dimes. Shania randomly selects one coin from her pocket and, without replacing it, selects another coin from her pocket. What is the probability that both coins are dimes?

Answers

Answer:

10/12

Step-by-step explanation:

Answer:

10/12

Step-by-step explanation:

Part A:
Sheronda uses 1 3/4 cups of sugar in every batch of homemade muffins she makes. One day, while making muffins for her son's bake sale, she used 19 1/4 cups of sugar in all. How many batches of muffins did she make?

A)34

B)19

C)13

D)11

Answers

The answer is D. This is so because 19 1/4 divided by 1 3/4 is 11. Hope this helps.

Given f(x) = 2x^2+ kx – 9, and the remainder when f(x) is divided by x + 6 is
57, then what is the value of k?

Answers

Given:

The function is

[tex]f(x)=2x^2+kx-9[/tex]

The remainder when f(x) is divided by x+6 is 57.

To find:

The value of k.

Solution:

According to the remainder theorem, if a polynomial function f(x) is divided by (x-a), then f(a) is the remainder.

The remainder when f(x) is divided by x+6 is 57.

Using remainder theorem, we get f(-6)=57.

Putting x=-6 in the given function.

[tex]f(-6)=2(-6)^2+k(-6)-9[/tex]

[tex]57=2(36)-6k-9[/tex]

[tex]57=72-6k-9[/tex]

[tex]57=63-6k[/tex]

On further simplification, we get

[tex]6k=63-57[/tex]

[tex]6k=6[/tex]

[tex]k=\dfrac{6}{6}[/tex]

[tex]k=1[/tex]

Therefore, the value of k is 1.

Answer:

person above lol

Step-by-step explanation:

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