3 years ago

PLZ HELP.. ME WILL GIVE BRAINLIEST. THANKYOU!!!

Mathematics

1 answer:

alina1380 [7]3 years ago

5 0

These are the answers 1/2

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one half the cost of a dress decreased by $12 is the same as 2/5 the cost of a dress. What is the cost of the dress?

guajiro [1.7K]

Answer:

$120

Step-by-step explanation:

Let the cost of the dress be "c"

ONE HALF the cost DECREASED by 12, can be written as:

$\frac{1}{2}c-12$

2/5th the cost of dress, can be written as:

$\frac{2}{5}c$

Now, we equate both parts and solve for c to get cost of dress. Shown below:

$\frac{1}{2}c-12=\frac{2}{5}c\\\frac{1}{2}c-\frac{2}{5}c=12\\\frac{5-4}{10}c=12\\\frac{1}{10}c=12\\c=\frac{12}{\frac{1}{10}}\\c=12*10\\c=120$

Thus,

The ccost of the dress is $120

6 0

3 years ago

Please help and explain

pogonyaev

Answer:

$x = 12$

Step-by-step explanation:

$3x - 1 + x + 7 = 54$

$4x + 6 = 54$

$4x + 6 - 6 = 54 - 6$

$4x = 48$

$\frac{4x}{4} = \frac{48}{4}$

$x = 12$

$3(12) - 1 + (12) + 7 = 54$

$36 - 1 + 12 + 7 = 54$

$35 + 12 + 7 = 54$

$35 + 19 = 54$

$54 = 54$

3 0

3 years ago

Read 2 more answers

(4x^3y)(-2x^4y^-1)^2(6x^8y^5)^0 PLSSSSSSSSSSSSSSSSS HELP ME !!!!!!!!!

e-lub [12.9K]

Answer:

answer is in explanation

Step-by-step explanation:

5 0

3 years ago

Can someone please help . Thank you !! :)

antoniya [11.8K]

Answer:

1000 years

Step-by-step explanation:

1x10^11 is basically 100 billion

1x10^8 is basically 100 million

so 100 billion divided by 100 milllion is basically 1000

so 1000 years

3 0

3 years ago

c(1)=−20 c(n)=c(n−1)+10 Find the 2nd term in the sequence.

Bad White [126]

Answer:

-10 is the second term.

Step-by-step explanation:

After the first term each term is obtained from the previous one by adding 10.

c(1) = -20

so c(2) = -20 + 10

= -10.

3 0

3 years ago