3 years ago

Fourteen students in Mr. Burton’s class are girls. This is 60% of his class. How many students are in his class?

Mathematics

1 answer:

AURORKA [14]3 years ago

7 0

Answer:

Step-by-step explanation:

You might be interested in

Nathan is 5 years older than dan. if the total of their ages is 19, how old is dan?

aleksandr82 [10.1K]

19-5=14 -5 =9 Dan is 9

8 0

3 years ago

Find point P that divides segments AB into a 2:3 ratio.

nasty-shy [4]

$\bf ~~~~~~~~~~~~\textit{internal division of a line segment}
\\\\\\
A(-3,1)\qquad B(3,5)\qquad
\qquad \stackrel{\textit{ratio from A to B}}{2:3}
\\\\\\
\cfrac{A\underline{P}}{\underline{P} B} = \cfrac{2}{3}\implies \cfrac{A}{B} = \cfrac{2}{3}\implies 3A=2B\implies 3(-3,1)=2(3,5)\\\\
-------------------------------\\\\
P=\left(\cfrac{\textit{sum of "x" values}}{\textit{sum of ratios}}\quad ,\quad \cfrac{\textit{sum of "y" values}}{\textit{sum of ratios}}\right)$

$\bf -------------------------------\\\\
P=\left(\cfrac{(3\cdot -3)+(2\cdot 3)}{2+3}\quad ,\quad \cfrac{(3\cdot 1)+(2\cdot 5)}{2+3}\right)
\\\\\\
P=\left(\cfrac{-9+6}{5}~~,~~\cfrac{3+10}{5} \right)\implies P=\left(-\frac{3}{5}~~,~~\frac{13}{5} \right)$

6 0

3 years ago

Use the formula v = u + at to find the velocity when the initial velocity is 3 m/s the acceleration is 1.5 m/s the time is 7 s

vichka [17]

<em> $answer \\ 13.5 \: m/s \\ given \\ initial \: velocity(u) = \: 3 \: m/s \\ acceleration(a) = 1.5 \: m/s ^2\\ time(t) = 7 \: second \\ now \\ v = u + at \\ or \: v = 3 + 1.5 \times 7 \\ \: or \: v = 3 + 10.5 \\ v = 13.5 \: m/s \\ hope \: it \: helps$ </em>

4 0

3 years ago

Ashley deposited $4,000 into a savings account that earns 4% simple interest. How much interest did she earn after three years?

Vinil7 [7]

Answer:

for the 1st year she earned 160 so for 3 years she will earn $480

6 0

3 years ago

Find the volume in the pyramid

lilavasa [31]

Answer:

900 ft!

Step-by-step explanation:

Volume = l ∗ w ∗ h

5 0

3 years ago