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3 years ago

PLEASE HELP ITS DUE SOON!!!! 50 POINTS!!!!

Mathematics

2 answers:

Lerok [7]3 years ago

4 0

Answer:

going from left to right then the next row same thing

12x5

32n3

x2y2

81a4b16 or sqrt9 a4b16 (same thing diff way of writing)

m7/2

2p5

2x9

2n13

2/n2

8a9/3

x23/2

4x2

1/b11

4x6

a11/4

8m7n211

Step-by-step explanation:

i did them myself all by hand so they should be right. if u see a number after a variable it means an exponent

so like 2m2 is 2m^2 and if u see 2m2n2 it means 2m^2n^2

Evgesh-ka [11]3 years ago

3 0

Answer:

12x $x^{5}$

32n^3

x^2y^2

81a^4b^16

m^7/2

2p^5

2x^9

16n^13

2/n^2

8a^4/2x^5

x^2/4

1/b^11

4x^4

a^11

4m^3n^17

Step-by-step explanation:

Hope this helps!

(1-16 in order)

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Y=9x-2

borishaifa [10]

Y = 9x - 2
3x - 2y = 7
so sub in 9x - 2 for y in the 2nd equation and solve for x

3x - 2(9x - 2) = 7
3x - 18x + 4 = 7
3x - 18x = 7 - 4
-15x = 3
x = -3/15
x = -1/5 or - 0.2 <===

8 0

3 years ago

A bag contains 7 red marbles, 4 blue marbles and 5 green marbles. If three marbles are drawn out of the bag, what is the probabi

muminat

Answer:

.094

Step-by-step explanation:

5/11 is .455

11 total marbles 5 are green

but thats the probability of just one draw

so .455 x .455 x .455 is .094 for three separate draws

4 0

3 years ago

Lacey deposited $30 in a savings account earning 10% interest, compounded annually.

Brut [27]

Answer:

$9.93

Step-by-step explanation:

Lacey would earn $9.93 in interest

6 0

3 years ago

WILL MARK AS BRAINLIEST IF YOU ANSWER THESE CORRECTLY*** Can someone please help me with these math questions? I would really ap

igor_vitrenko [27]

ANSWER:

Question a):

$\dfrac{5}{3}*x= \dfrac{5}{6}\\ \\ \\ \dfrac{5}{3}x= \dfrac{5}{6}\\ \\6(5x)=3(5)\\ \\30x=15\\ \\x= \dfrac{15}{30}\\ \\ \\x= \dfrac{\not{15}}{\not{30}}\\ \\ \\x= \dfrac{1}{2}\quad\Longrightarrow\boxed{\mathbb{ANSWER\ \checkmark}}$

Question b):

$\dfrac{5}{3}\div{x}= \dfrac{10}{9}\\ \\ \\ \dfrac{5}{3}\div{ \dfrac{x}{1} }= \dfrac{10}{9}\\ \\ \\ \dfrac{5*1}{3*x}= \dfrac{10}{9}\\ \\ \\ \dfrac{5}{3x}= \dfrac{10}{9}\\ \\9(5)=10(3x)\\ \\45=30x\\ \\ \dfrac{45}{30}=x\\ \\ \\ \dfrac{\not{45}}{\not{30}}=x\\ \\ \\ \dfrac{3}{2}=x\quad\Longrightarrow\boxed{\mathbb{ANSWER\ \checkmark}}$

Question c):

$12\%*x= \dfrac{3}{4}\\ \\ \\ \dfrac{12}{100}*x= \dfrac{3}{4}\\ \\ \\ \dfrac{\not{12}}{\not{100}}x= \dfrac{3}{4}\\ \\ \\ \dfrac{3}{25}x= \dfrac{3}{4}\\ \\4(3x)=3(25)\\ \\12x=75\\ \\x= \dfrac{75}{12}\\ \\ \\x= \dfrac{\not{75}}{\not{12}}\\ \\ \\x= \dfrac{25}{4}\quad\Longrightarrow\boxed{\mathbb{ANSWER\ \checkmark}}$

Question d):

$\dfrac{12}{7}*x= \dfrac{18}{35}\\ \\ \\ \dfrac{12}{7}x= \dfrac{18}{35}\\ \\35(12x)=7(18)\\ \\420x=126\\ \\x= \dfrac{126}{420}\\ \\ \\x= \dfrac{\not{126}}{\not{420}}\\ \\ \\x= \dfrac{3}{10}\quad\Longrightarrow\boxed{\mathbb{ANSWER\ \checkmark}}$

Question e):

$x\div{ \dfrac{8}{11} }= \dfrac{22}{7}\\ \\ \\ \dfrac{x}{1}\div{ \dfrac{8}{11} }= \dfrac{22}{7}\\ \\ \\ \dfrac{11*x}{8*1}= \dfrac{22}{7}\\ \\ \\ \dfrac{11x}{8}= \dfrac{22}{7}\\ \\7(11x)=8(22)\\ \\77x=176\\ \\x= \dfrac{176}{77}\\ \\ \\x= \dfrac{\not{176}}{\not{77}}\\ \\ \\x= \dfrac{16}{7}\quad\Longrightarrow\boxed{\mathbb{ANSWER\ \checkmark}}$

Question f):

$120\%\div{x}= \dfrac{14}{15}\\ \\ \\ \dfrac{120}{100}\div{x}= \dfrac{14}{15}\\ \\ \\ \dfrac{\not{120}}{\not{100}}\div{}x= \dfrac{14}{15}\\ \\ \\ \dfrac{6}{5}\div{x}= \dfrac{14}{15}\\ \\ \\ \dfrac{6}{5}\div{ \dfrac{x}{1} }= \dfrac{14}{15}\\ \\ \\ \dfrac{1*6}{5*x}= \dfrac{14}{15}\\ \\ \\ \dfrac{6}{5x}= \dfrac{14}{15}\\ \\6(15)=14(5x)\\ \\90=70x\\ \\ \dfrac{90}{70}=x\\ \\ \\ \dfrac{\not{90}}{\not{70}}=x\\ \\ \\ \dfrac{9}{7}=x\quad\Longrightarrow\boxed{\mathbb{ANSWER\ \checkmark}}$

$\textbf{HOPE\ THIS\ HELPS...!!}$

3 0

3 years ago

A shirt is on sale with a 25% discount. The original price of the shirt was $28. Will Wayne have enough money to buy the shirt i

miv72 [106K]

25% of 28 is 7 (28 x 0.25)
28 - 7 = 21
yes he would have enough money

3 0

3 years ago