Solve each equation. Write null if the equation has no solution. Write all if all numbers solve the equation. Write fractions in simplest form.1) 33+a=12a
2) -6n+2=4n-5
3) 2.4b-7=b+15.4
4) 4m/6=m+3
5) 4p+1/4=6p
6) 24-c=2(3+4c)
7) 3(5-2y)=4(y+20)
8) 5(2x+3)=3(x+2)+7x+9
9) 4(3k+6)=12(5+k)
10) 3(2n+4)+2n+56

PLEASE HELP ME WITH THIS QUESTION!!!!!!!

Answers

Answer 1

Answer: 1) 33+a=12a
33 = 11a
33/11 = a
a = 3

2) -6n+2=4n-5
2 = 10n-5
7=10n
n = 7/10
n = 0,7

3) 2.4b-7=b+15.4
2.4b=b+22.4
1.4b=22.4
b = 22.4/1.4
b = 16

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Look in the back of the book

In the expression 4 +3x+5y what is the coefficent of x

Answers

Answer:

your coefficient is 3 because its infront of the x

Answer: 3

Hope this helps:)

There are some hats in a box. 1/6 of them are red, 1/3 of blue, and 3/7 of the remainder are green. If there are 27 green hats, how many hats are there altogether

Answers

1/6 are red and 1/3 are blue
that means 1/6 + 2/6 = 3/6 = 1/2 are either red are blue
3/7 of the remainder is 3/14 of the total
3/14 x = 27
x = 27(14/3) = 126

there are 126 caps
126 / 6 = 21 are red
126 / 3 = 42 are blue
there are 63 left, of which 3/7 are green
3/7 (63) = 27 ==> 27 green caps

total of 126 caps

Hope this helps :)

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Micah deposited $4000 between two savings account. One account earns 4% simple interest each year. The other account earns 2% simple interest. Last year Micah earned $140 interest on the accounts. What amount was originally deposited into the account that pays 4% interest?

Answers

Answer:

The amount that is deposited at 4 % simple interest is $ 3000.

Step-by-step explanation:

Given, the total amount deposited = $ 4000,

Let x be the amount that is deposited at the rate of 4 % simple interest,

⇒ The amount deposited at the rate of 2% simple interest = ( 4000 - x ) dollars,

We know that,

The simple interest on an amount is,

$I=(P* r* t)/(100)$

Where, P is the principal amount, r is rate of interest and t is time,

Thus, the total interest he earned in a year

$I=(x* 4* 1)/(100)+((4000-x)* 2* 1)/(100)$

$=(4x)/(100)+(2(4000-x))/(100)$

$=(4x+2(4000-x))/(100)$

According to the question,

I = $ 140,

$\implies (4x+2(4000-x))/(100)=140$

$(2x+8000)/(100)=140$

$2x+8000=14000$

$2x=6000$

$x=3000$

Hence, the amount that is deposited at 4 % simple interest is $ 3000.

$3000 * 0.04 = $120
$100 * 0.02 = $20

total 2 accounts = $120 + $20 = $140

answer: $3000 was the originally deposited into the account that pays 4% interest.

ABO please help brailest I promise Help me please I beg you !

Answers

I'm just going to give the answers snce so many questions

1. 2
2. 2/(m^2)
3. 1/(16x^8)
4. 3x^4
steps one: the one that starts with squareing both sides (√5x-9)^2=4^2)
23. x=9
24. 0
last graph one: third one (one that starts at 2 up from the origin)

that is all the work and how you do it step by step

Emma is 9 1/4 years old. How many MONTHS old is Emma?

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