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3 years ago

In a car wash fundraiser, the money earned varies directly with the number

Mathematics

1 answer:

miv72 [106K]3 years ago

3 0

if 15 cars were washed there would be $52.50

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If sin 0 =<br> 6<br> 12<br> find cos 0 and sin 8.

Setler79 [48]

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8 0

3 years ago

Marco went to the cafeteria to buy chicken sandwiches, C, worth $2.00, and hamburgers, h, worth $2.50.

yaroslaw [1]

Answer:

5 Hamburgers = $12.50 4 Chicken sandwiches $8.00( $12.50 + $8.00 = $20.50

Step-by-step explanation:

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3 years ago

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A curve has equation y=x√x.find the equation of the tangent to the curve at the point(1, 5)

rewona [7]

Answer:

y - 5 = $\frac{3}{2}$ (x - 1)

Step-by-step explanation:

Note that $\frac{dy}{dx}$ = $m_{tangent}$

Differentiate using the power rule

$\frac{d}{dx}$ (a $x^{n}$ ) = na $x^{n-1}$

Given

y = x $\sqrt{x}$ = x. $x^{\frac{1}{2} }$ = $x^{\frac{3}{2} }$ , then

$\frac{dy}{dx}$ = $\frac{3}{2}$ $x^{\frac{1}{2} }$

When x = 1

$\frac{dy}{dx}$ = $\frac{3}{2}$ . 1 = $\frac{3}{2}$

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = $\frac{3}{2}$ and (a, b) = (1, 5), thus

y - 5 = $\frac{3}{2}$ (x - 1) ← equation of tangent

3 0

3 years ago

I need help with the question

sweet [91]

Answer:

Step-by-step explanation:

Comment

√15 = 3.87

<u>√12 = 3.46 </u> Subtract these 2

Difference = 0.41

5 0

1 year ago

sutopa has 3/4 the money maneet has. maneet has $18 less than Kim. together, they have $286.40. How much money does each of them

timurjin [86]

The amount of money Kim, maneet and Sutopa have is $115.6, $97.6 and $73.2 respectively.

<h3>Equation</h3>

Kim = x
Maneet = x - 18
Sutopa = 3/4(x-18)
Total = $286.40

x + (x - 18) + 3/4(x-18) = 286.40

x + x - 18 + 3/4x - 13.5 = 286.40

2 3/4x = 286.40 + 13.5 + 18

11/4x = 317.9

x = 317.9 ÷ 11/4

= 317.9 × 4 / 11

= 1,271.6 / 11

x = $115.6

So,

Kim = x

= $115.6

Maneet = x - 18

= 115.6 -18

= $97.6

Sutopa = 3/4(x-18)

= 3/4(97.6)

= $73.2

Learn more about equation:

brainly.com/question/4344214

#SPJ1

8 0

2 years ago