Ask question

Ask question

All categories

3 years ago

14

Solve the proportion x/18=7/21

1 answer:

Crank3 years ago

4 0

Answer:

x=6

Step-by-step explanation:

You might be interested in

Look at the number line below. Tyhe number 2 is between 1 and 4 since 1 =1 and 4=2, that means that 2 must be between what two i

Vlada [557]

Answer: i dont know

Step-by-step explanation:

5 0

3 years ago

Vida correctly answered 18 of a 20 item test. Express her score in percent.

DerKrebs [107]

Her score in percent is 90%

7 0

3 years ago

Read 2 more answers

Find the value of a. the diagram is not to scale.

Katarina [22]

Step-by-step explanation:

there is no diagram attached

8 0

3 years ago

Read 2 more answers

On the moon, the height of a golf ball hit with an initial velocity of 96 ft/sec is given by the equation h= -2.7t^2+96t, where

nikdorinn [45]

So hmmm notice the picture below

"x" being how many seconds the object was going

and when y = 0, the object hits the ground, either on the moon or on earth

so, if we set y = 0 on each equation, we'll know when that happen, how long of a "x-value" or seconds it took

$\bf \begin{array}{llll}
\textit{on the moon}\\\\
h=-2.7t^2+96t\implies 0=t(96-2.7t)
\end{array} \quad 
\begin{cases}
0=t\\
-------\\
0=96-2.7t\\
2.7t=96\\
t=\frac{96}{2.7}\\
t\approx 35.\overline{55}
\end{cases}\\\\
-------------------------------\\\\
\begin{array}{llll}
\textit{on earth}\\\\
h=-16t^2+96t\implies 0=t(96-16t)
\end{array} \quad 
\begin{cases}
0=t\\
------\\
0=96-16t\\
16t=96\\
t=\frac{96}{16}\\
t=6
\end{cases}$

4 0

3 years ago

4. WILL MARK BRAINLIEST!!! HELP!

Hunter-Best [27]

Answer:

$\frac{5}{36}$

Step-by-step explanation:

$\frac{8}{9}-\frac{3}{4} =\\\frac{32}{36} -\frac{27}{36} =\\\frac{5}{36}$

7 0

3 years ago