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Cerrena [4.2K]
3 years ago
13

Marcus spent 3.25$ to wash his car. If one querter operates the car wash 60 seconds hiw long did it take him to wash his car.

Mathematics
1 answer:
ddd [48]3 years ago
6 0

Answer:

answer=answer

Step-by-step explanation:

Y E S

I love simple math.

3.25$ to wash the car.

60 seconds: 1 quarter

how many quarters is 3.25?

4 quarters per dollar. so it'd be 13 quarters, then do 13*60=how many seconds u got. 780 seconds. I think you can do 780/60

HINT: hey, psst, it's 13 minutes. : D

HEY DOn'T teLL tHeM tHe ANSWER. :V

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3(2 + 4) = 60 5 + 1 = 8 − 23 can someone help me please
Lelechka [254]

Answer:

I am trying to help you, but i need to know the content of the question. What am i trying to do? Simplify? Explain? Say if true or False? More info will allow me to assist you much better than before. Then I will alter my answer accordingly

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Given 4x²=(3y-5z÷4)² ,find<br>x if y=x-2 and z=2y<br><br>​
rjkz [21]

Answer:

x = 2/5 or x = -2/3

Step-by-step explanation:

y = x - 2

z = 2y = 2(x - 2) = 2x - 4

4x² = (3y - 5z ÷ 4)²

Substitute y with x - 2. Substitute z with 2x - 4.

4x² = [3(x - 2) - 5(2x - 4) ÷ 4]²

16 * 4x² = [3(x - 2) * 4 - 5(2x - 4) ÷ 4 * 4]²

64x² = [12(x - 2) - 5(2x - 4)]²

64x² = (12x - 24 - 10x + 20)²

64x² = (2x - 4)²

64x² = 4x² - 16x + 16

60x² + 16x - 16 = 0

15x² + 4x - 4 = 0

ac = 15 * (-4) = -60

-6 * 10 = -60

-6 + 10 = 4

15x² - 6x + 10x - 4 = 0

(15x² - 6x) + (10x - 4) = 0

3x(5x - 2) + 2(5x - 2) = 0

(5x - 2)(3x + 2) = 0

5x - 2 = 0 or 3x + 2 = 0

5x = 2 or 3x = -2

x = 2/5 or x = -2/3

3 0
3 years ago
A shirt is originally priced at $19.99. it was marked down 25%. what is the sale price?
Bond [772]

Answer:

Final price: $14.99

Step-by-step explanation:

Discount= original price x discount % / 100

Discount= 19.99 x 25/ 100

Discount= 499.75/100

You save= $4.9975



Final Price= original price - discount

Final price= 19.99 - 4.9975

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Final Price= $14.99

8 0
3 years ago
Suppose we want to add some punch to a partially filled drink dispenser of punch. We know that a 65 ounce bottle of punch will i
Mkey [24]

Answer:

dh = 3 *dV / 130

Step-by-step explanation:

Given:

- volume of punch in bottle = 65 ounce

- volume of punch = v

- increase in height of punch level on dispenser = 1.5 in

Find:

- The change in height of punch in the dispenser in inches, Δh, in terms of the change in the volume of punch in the dispenser in ounces, Δv.

Solution:

We will assume a linear relationship between the increase in punch level dispenser and the increase in volume of dispenser.

                   h(v) = m*v + h

Where, m is change of height with respect to volume. Hence,

                   m = dh / dV = 1.5 / 65 = 3 / 130 in / ounce

Hence,

                   dh = 3 *dV / 130

3 0
3 years ago
Simplify completely the quantity 5 times x to the third power plus 10 times x to the 2nd power plus 15 times x all over 5 times
dedylja [7]
The <u>correct answer </u>is:

x²+2x+3.

Explanation:

\frac{5x^3+10x^2+15x}{5x}

We need to divide each term of the numerator by the denominator.  For the <u>first term</u>:
\frac{5x^3}{5x}

Dividing the coefficients, we have 5/5 = 1.  
When dividing the variables, we use the quotient rule:  when dividing powers that have the same base, subtract the exponents.  This gives us:
x³/x = x³/x¹ = x³⁻¹ = x²

For the first monomial, this gives us 1x² = x².

The <u>second term</u>:
\frac{10x^2}{5x}

Dividing the coefficients, we have 10/5 = 2.
Dividing the variables, we again use the product rule:
x²/x = x²/x¹ = x²⁻¹ = x¹ = x

Together this gives us 2x.

The <u>third term</u>:
\frac{15x}{5x}

Dividing the coefficients, we have
15/5 = 3.
Dividing the variables, we have x/x; when you divide something by itself, the answer is 1.  This gives us:
3*1 = 3.

Together our quotient is x²+2x+3.
7 0
3 years ago
Read 2 more answers
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