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Papessa [141]
3 years ago
8

Elena has $240 in the bank. She withdraws $15 each week to pay for her piano lessons. How many lessons can she afford with her s

avings?
Write an equation and solve..

Please help and Thankyou! :)
Mathematics
1 answer:
Ivahew [28]3 years ago
6 0
16 lesson. The equation is 240÷15=16
And like I said 240÷15 is 16
So here I hope it helped You
~jZ
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a music store is advertising a 25% off sale on all new releases find the discount and the sale price of a newly released CD that
ludmilkaskok [199]
Discount=$3.13
sale=$9.38
4 0
3 years ago
Why is 1 neither prime nor a composite number?
Nadya [2.5K]

Answer:

1 is neither prime nor a composite number because it only has 1 divisor, 1 and 1, and it doesn't have more than 2 integral divisors, like stated, it only has 1. So it falls in neither category.

7 0
2 years ago
Read 2 more answers
After being rearranged and simplified, which of the following equations could
masha68 [24]

Answer:

C and D

Step-by-step explanation:

The quadratic formula is

x= (-b±√b²-4ac)/2a

The formula uses the numerical coefficients in the quadratic equation.

The general quadratic equation is ax²+bx+c where a, b and c are the numerical coefficients

So, lets try and see;

A.

5x+4=3x^4-2\\\\=3x^4-5x-2-4\\=3x^4-5x-6\\a=3,b=-5,c=-6

But due to the fact that  in this equation you have x⁴, the equation is not a quadratic equation thus can not be solved using this formula

B

-x^2+4x+7=-x^2-9\\\\\\=-x^2+x^2+4x+7+9\\=4x+16

C

9x+3x^2=14+x-1\\\\\\=3x^2+9x-x-14+1\\\\=3x^2+8x-13\\\\\\a=3,b=8,c=-13\\

D.

2x^2+x^2+x=30\\\\\\=3x^2+x-30\\\\\\a=3,b=1,c=-30

From the checking above, the equations will be C and D

7 0
3 years ago
Read 2 more answers
Can you please help !? its due at 1:00 pm. (i will mark you brainlest) can you show work if you can?
11111nata11111 [884]

Answer:

10) 9*9*9*9 = 6561

11) 2*2*2 = 8

12) 3*3*3*3*3 = 243

13) 4*4*4 = 64

14) 6*6*6*6*6 = 7776

15) 5*5*5*5 = 625

16) 8.5*8.5*8.5 = 614.125

17) 1.3*1.3 = 1.69

18) 7*7*7*7 = 2401

Used a calculator

8 0
3 years ago
Please help me thank you
Mashcka [7]

Answer:

f(2) 6x2= 12

f(-6) 6x-6=-36

f(5) 6x5=30

f(0) 6x0=0

f(10) 6x10=60

Step-by-step explanation:

it's really easy when they ask you this just put the number in parentheses instead of the x because x is an unknown number it's telling you to multiply the 6 by the number they give you

6 0
2 years ago
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