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3 years ago

435 is 15% of what number?

Mathematics

1 answer:

melamori03 [73]3 years ago

7 0

435 is 15% of 2900 that is the answer

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Use the expression - 8( - 2.5-7).

Paladinen [302]

Answer:

20+56 or basically 76

Step-by-step explanation:

Just multiply -8 to -2.5 and -7.

6 0

3 years ago

A line passes through (3, -2) and (6,2). Write an equation for the line in point-slope form.

snow_lady [41]

Answer:

4x - 3y -18 = 0 or y = 4x/3 - 6

Step-by-step explanation:

We will have to find the slope of the line first

The formula for slope:

$m =\frac{y_{2}- y_{1} }{x_{2} -x_{1} } \\m= \frac{-2-2}{3-6}\\ =\frac{-4}{-3}\\ =\frac{4}{3}$

The standard form of equation of a line is:

y = mx + b

We know m,

So the equation will be:

$y= \frac{4}{3}x+b$

We have to find the value of b, for that we will put any one of the point in the equation

So, putting (6,2)

2 = 4/3 * 6 + b

2 = 8 +b

b = -6

Putting the value of m and b in the standard form of equation of line,

$y = mx + b\\y = \frac{4}{3}x+(-6)\\y = \frac{4}{3} x - 6\\Multiplying\ both\ sides\ by\ 3\\3y = 4x - 18\\4x - 3y -18 = 0$ ..

7 0

3 years ago

The cost of renting a boat is $20 plus $2.50 per hour, where x is the number of hours of boat rental. Millie wants to spend less

kakasveta [241]

Answer:

D. 20 + 2.50x < 50

Step-by-step explanation:

20 + 2.50x < 50 - the sign has to be less than because Millie wants to spend less than $50

8 0

3 years ago

Area of right angle triangle is 54 cm2. if one of its leg is 12 cm fine the perimeter

Molodets [167]

The perimeter of the right angled triangle should be 36cm, hope this helps:)

8 0

3 years ago

The vertex of this parabola is at (-4, -1). When the y-value is 0, the x-value is 2. What is the coefficient of the squared term

satela [25.4K]

$\bf \qquad \textit{parabola vertex form}\\\\
\begin{array}{llll}
\boxed{y=a(x-{{ h}})^2+{{ k}}}\\\\
x=a(y-{{ k}})^2+{{ h}}
\end{array} \qquad\qquad vertex\ ({{ h}},{{ k}})\\\\
-------------------------------\\\\
y=a(x-(-4))^2-1\implies y=a(x+4)^2-1
\\\\\\
\textit{now, we also know that }
\begin{cases}
y=0\\
x=2
\end{cases}\implies \underline{0}=a(\underline{2}+4)^2-1$

solve for "a"

5 0

3 years ago