All categories

3 years ago

20 * 90 * 6 = ??????

Mathematics

2 answers:

Savatey [412]3 years ago

5 0

10800
I multiplied it. I hope I helped.

umka2103 [35]3 years ago

3 0

That means to multiply right? it's 10,800

You might be interested in

A camera attached to a telescope photographs a stars image once every .045 seconds. How many complete images can the camera capt

padilas [110]

Writing and solving an equation of ratios would seem to be the best way to go.

0.045 sec 3 sec
------------- = ------------
1 image x

Then 0.045x = 3, and x = 66 2/3 images, best rounded down to 66 images.

4 0

3 years ago

The function f(x) is given by the set of orderd pairs.

Alecsey [184]

Answer:

F(-6)=10

Step-by-step explanation:

From the set of ordered pairs we have,

(-6,10)

This means that when we substitute

x=-6 into the function the result is 10.

Thus,

The last choice is the correct option

3 0

3 years ago

The difference between the squares of two numbers is 20. three times the square of the first number increased by the square of t

Mashcka [7]

We need a system of equations to solve this. "Difference" is to subtract, and we are taking this difference of the 2 squared unknowns to be 20. That equation is $x^{2} -y^2=20$ . Our "first number is x^2, so 3 times that is 3x^2. "Increased by" is adding to that first number. What we are adding is the second number. The second equation is $3x^2+y^2=124$ . Let's solve the first equation for x^2: $x^2=y^2+20$ and sub that value for x^2 into the second equation. $3(y^2+20)+y^2=124$ and $3y^2+60+y^2=124$ . Subtract 60 from both sides and combine the y^2 terms to get $4y^2=64$ . Divide both sides by 4 to get y^2 = 16 and y = 4. Let's go back now and solve for x. We will use the fact that y^2 = 16 to solve for x^2 and then take the square root of it. $x^2-16=20$ , x^2 = 4, so x = 2. Your solutions are x = 2 and y = 4. There you go!

8 0

3 years ago

Don't just answer for point plz

Hunter-Best [27]

Answer:

Step-by-step explanation:

The area of a triangle is

A=bh/2 where b=base dimension and h=height

1) 10(12)/2=60mm^2

2) 14(34)/2=238in^2

3) 9.5(19.25)/2=91.4375yd^2

4) 4.9(23.7)/2=232.26m^2

5) 285=15b/2, 15b=578, b=38ft

6) 17h/2=18.7, 17h=37.4, h=2.2cm

7) 12.25b/2=128.625, 12.25b=257.25, b=21in

4 0

3 years ago

Read 2 more answers

an oatmeal recipe calls for 1 1/2 cups of oat and 2 1/2 cups of water. A If you have 3 cups of oats,how many cups of oats water

natima [27]

$\bf \stackrel{mixed}{1\frac{1}{2}}\implies \cfrac{1\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{3}{2}}~\hfill \stackrel{mixed}{2\frac{1}{2}}\implies \cfrac{2\cdot 2+1}{2}\implies \stackrel{improper}{\cfrac{5}{2}}\\\\[-0.35em]\rule{34em}{0.25pt}$

$\bf \begin{array}{ccll}oats&water\\\cline{1-2}\frac{3}{2}&\frac{5}{2}\\[0.8em]3&x\end{array}\implies \cfrac{~~\frac{3}{2}~~}{3}=\cfrac{~~\frac{5}{2}~~}{x}\implies \cfrac{~~\frac{3}{2}~~}{\frac{3}{1}}=\cfrac{~~\frac{5}{2}~~}{\frac{x}{1}}\implies \cfrac{3}{6}=\cfrac{5}{2x}\\\\\\6x=30\implies x=\cfrac{30}{6}\implies \blacktriangleright x=5 \blacktriangleleft$

$\bf \begin{array}{ccll}oats&water\\\cline{1-2}\frac{3}{2}&\frac{5}{2}\\[0.8em]2&x\end{array}\implies \cfrac{~~\frac{3}{2}~~}{2}=\cfrac{~~\frac{5}{2}~~}{x}\implies \cfrac{~~\frac{3}{2}~~}{\frac{2}{1}}=\cfrac{~~\frac{5}{2}~~}{\frac{x}{1}}\implies \cfrac{3}{4}=\cfrac{5}{2x}\\\\\\6x=20\implies x=\cfrac{20}{6}\implies x=\cfrac{10}{3}\implies \blacktriangleright x=3\frac{1}{3} \blacktriangleleft$

$\bf \begin{array}{ccll}oats&water\\\cline{1-2}\frac{3}{2}&\frac{5}{2}\\[0.8em]5&x\end{array}\implies \cfrac{~~\frac{3}{2}~~}{5}=\cfrac{~~\frac{5}{2}~~}{x}\implies \cfrac{~~\frac{3}{2}~~}{\frac{5}{1}}=\cfrac{~~\frac{5}{2}~~}{\frac{x}{1}}\implies \cfrac{3}{10}=\cfrac{5}{2x}\\\\\\6x=50\implies x=\cfrac{50}{6}\implies x=\cfrac{25}{3}\implies \blacktriangleright x=8\frac{1}{3} \blacktriangleleft$

$\bf \begin{array}{ccll}oats&water\\\cline{1-2}\frac{3}{2}&\frac{5}{2}\\[0.8em]x&3\end{array}\implies \cfrac{~~\frac{3}{2}~~}{x}=\cfrac{~~\frac{5}{2}~~}{3}\implies \cfrac{~~\frac{3}{2}~~}{\frac{x}{1}}=\cfrac{~~\frac{5}{2}~~}{\frac{3}{1}}\implies \cfrac{3}{2x}=\cfrac{5}{6}\\\\\\18=10x\implies \cfrac{18}{10}=x\implies \cfrac{9}{5}=x\implies \blacktriangleright 1\frac{4}{5}=x \blacktriangleleft$

8 0

3 years ago