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Serga [27]
3 years ago
14

Help me please I need an an answer asap

Mathematics
1 answer:
Dovator [93]3 years ago
8 0
7B + 4 = 7B - 3
We need to solve for B
Let's add 3 in both sides:

7B + 4 = 7B - 3
7B + 4 + 3 = 7B - 3 + 3
7B + 7 = 7B

Let's subtract 7B from both sides:
7B + 7 = 7B
7B - 7B + 7 = 7B - 7B
7 = 0

7 = 0, which is impossible. 7 can never be 0, and 0 can never be 7.
So the equation have no solution.
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Emily had 75 buttons. She gave 15 buttons to jake. What percentage of the buttons did Emily give to hair?
olga55 [171]
Emily gave Jake 20% of the buttons. 20% = 15 buttons, and 15 x 5 = 75
8 0
3 years ago
If f is a function, then f(3x)=3f(x)
Delvig [45]
This is false.
The f(3x) means you are multiplying the input 'x' by 3 before plugging into the equation.
3f(x) means you are going to multiply your answer (output) by 3 after you've plugged the input value in and gotten the output.
7 0
3 years ago
1. The mark up price of a pair of shoes which costs $125. 00 is 8. 35%. A)What is the final price? If the tax is 6 1/2% How much
Xelga [282]

Answer:

Step-by-step explanation:

Remark

The wholesale price of the shoes is 125 dollars

The retailer marks it uu to 35% more to the wholesale price.

So the price is now 125 + 35% * 125 dollars

That amount is 125 + 35/100 * 125 = 125 + 43.75 = 168.75

The government wants its cut of 6.5% of the selling price

So the final price is 168.75 + 168.75 * 6.5/100

The final price is 168.75 + 10.97 = 179.72

Answer: A customer pays 179.72 dollars.

3 0
2 years ago
Find the value of X.
klemol [59]

Answer:

I think answer is 3

Step-by-step explanation:

BD = DA

BE = EC

Now, BD/BE = DA/EC

or, x + 5/2x = 4/3

or, 3x + 15 = 8x

or, 15 = 8x - 3x

or, 15 = 5x

or, 15/5 = x

or, 3 = x

Therefore x = 3 <u>Ans</u>

5 0
3 years ago
Barney has 1 16
Mars2501 [29]
1165 divided by 255 = 5.17 = 5 costumes
3 0
3 years ago
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