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Andreas93 [3]
3 years ago
10

1. (3x - 2) + (5x – 4) = 100 El valor de x

Mathematics
2 answers:
hichkok12 [17]3 years ago
8 0
3x-2+5x-4=100
(3x+5x)+(-2+-4)=100
8x+-6=100
8x-6=100
8x-6+6=100+6
8x=106
8x/8=106/8
X=53/4
-Dominant- [34]3 years ago
3 0

Answer:

x= 13.25

Step-by-step explanation:

If you simplify that it becomes 8x-6= 100

Then, if you rearrange it, its 8x= 100+6 or 8x=106

So that means x= 13.25

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Steven has $150. John has J dollars. Steven has 30 less than 2 times the amount John has. How much does John have?
Sedaia [141]

Answer:

J = 90

John has 90 dollars.

Step-by-step explanation:

We need to find how much money John has. To find how much J equals we need to break it down.

We already know that Steven has 150 dollars. We also know that he has 30 less than two times the amount John has.

Steven has 30 less than two times the amount John has.

So 150 + 30 = 180

180 is two times the amount John has.

Because 180 is two times the amount John has we need to divide by two.

180 ÷ 2 = 90.

J = 90. Therefore John has 90 dollars.

This question was tricky! I hope I helped a little! Have a great day!!

6 0
2 years ago
Do ya'll have any suggestions about this?
Elanso [62]

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3 0
3 years ago
Read 2 more answers
Find the experimental probability of rolling a 4
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8 0
3 years ago
if your cell phone bill was $67.82 and there's a 7.5% late fee how much will you pay for your phone bill
kotegsom [21]
$67.82 if you pay it on time.
$90.43 if you pay it late.
8 0
4 years ago
When you buy an item on which sales tax is charged,the total cost is calculated by the formula T=P+s/100p where T is the total c
Gennadij [26K]

Given:

The formula for total cost is

T=p+\dfrac{s}{100}p

where, p is the price of item and s is the sales tax rate (as a percent).

You pay $14.77 for an item priced at $14.

To find:

The the tax rate.

Solution:

You pay $14.77 for an item priced at $14. So,

Total cost (T) = $14.77

Price of item (p) = $14

Putting T=14.77 and p=14 in given formula, we get

14.77=14+\dfrac{s}{100}(14)

14.77-14=\dfrac{s}{100}(14)

0.77=\dfrac{s}{100}(14)

Multiply both sides by 100.

77=14s

Divide both sides by 14.

\dfrac{77}{14}=s

5.5=s

Therefore, the tax rate is 5.5%.

7 0
3 years ago
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