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3 years ago

Piano lessons cost $15 what expressions could be used

Mathematics

2 answers:

Sonbull [250]3 years ago

6 0

15*5 truse me

hope this helps you

stepladder [879]3 years ago

4 0

It is going to be $25x, because $25 means the cost and x means the times you went.

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2) A product originally costs $125. If the product goes on sale for 20% off, and then goes on sale for an additional 30% off, wh

alukav5142 [94]

To do these, always convert the percents to decimals, so you can subtract it from 1. Remember, 1 is the whole. When you subtract the part that's taken off, you are left with what you have to pay. If you have 20% off of $100, then you are paying for 80% of $100. **of means to multiply** so you would multiply: 0.8X100, which would be $80.

First, multiply 125x0.8

Multiply that answer by 0.7

You should get B. $70

3) multiple 22.90x0.93

You should get D

7 0

3 years ago

Read 2 more answers

Solve multi step equations 2(4-d+2d)=12

natka813 [3]

2(4-d+2d)=12
8-2d+4d=12
8+2d=12
2d=4
d=2

4 0

3 years ago

Read 2 more answers

Solved i need the answer ASAP

makkiz [27]

Answer:

V = - 3

Step-by-step explanation:

$- 1 = \frac{1}{3} v \\ \\ - 1 \times 3 = v \\ \\ v = - 3$

Your answer is absolutely correct.

8 0

3 years ago

Select the one answer. 2x+3x3

gulaghasi [49]

Answer:

2 times x plus 3 times x cubed.

Step-by-step explanation:

2x = 2 * x = two times (multiplied) by x.

+ = plus.

3x^3 = 3 * x^3 = three times (multiplied) by x cubed.

7 0

4 years ago

Solve 6x+57=2x+315 . A. x=−911 B. x=911 C. x=119 D. x=−119

liubo4ka [24]

Explanation:

Remember: we have to isolate the variable x, so that means we have to get x by itself.

Step 1:

Let’s look at our equation:

$6x+57=2x+315$

Let’s subtract 2x from both sides of the equation, since our goal is to isolate the variable. You could also subtract 6x from both sides, but you would end up with a negative number, and I find it easier to deal with positive numbers.

$6x(-2x)+57=2x(-2x)+315\\4x+57=315$

Step 2:

Now, let’s subtract 57 from both sides of our equation.

$4x+57(-57)=315(-57)\\4x=258$

Step 3:

Since we have to isolate x, let’s divide both sides of the equation by 4.

$4x/4=x\\258/4=64.5$

Our final answer: x = 64.5

None of your options is the correct answer. Notify your teacher, tutor, etc. since there none of the options are correct.

4 0

3 years ago