Ask question

Ask question

All categories

3 years ago

13

Mike purchased a notebook, pen, and two pencils from the school's book fair. All notebooks are $2.98, pens are $1.75, and pencil

s are $0.75 What was Mike total ?

2 answers:

diamong [38]3 years ago

8 0

Answer:

It's 6.23

Step-by-step explanation:

just add them and add the decimals

joja [24]3 years ago

3 0

Answer:

5.48

Step-by-step explanation:

add 2.98 1.75 and 0m75

You might be interested in

Use the original price and the markup to find the retail price.

RSB [31]

Answer:

$40,50

Step-by-step explanation:

36 increase 12.5% =

36 × (1 + 12.5%) = 36 × (1 + 0.125) = 40.5

6 0

3 years ago

Water freezes at 0 degrees Celsius. A student discovered that adding half a cup of salt to a gallon of water lowers its freezing

Artemon [7]

Answer:

-7°C

Step-by-step explanation:

Freezing point of water = 0°C

By adding salt, freezing point lowers by 7°C ;

The freezing point of salt water can be expressed as ;

Since temperature lowers :

Freezing point of salt water :

Freezing point of water - 7°C

0°C - 7°C

= - 7°C

4 0

3 years ago

Lucy spends 4 hours a week babysitting. Her sister Lily spends seven eighths as much time babysitting. Does Lily babysit for mor

olganol [36]

Answer:

Lily babysit for <u>less than 4 hours</u>.

Step-by-step explanation:

Given:

Lucy spends in a week babysitting for 4 hours.

Lily spends seven-eighths of 4 hours.

Now, to find whether Lily babysit for more than 4 hours or less than that.

Number of hours Lucy babysit = 4 hours.

So, to get the hours Lily babysit:

$\frac{7}{8}\ of\ 4\ hours.$

$=\frac{7}{8}\times 4\\\\=\frac{28}{8} \\\\$

<em>On simplifying we get:</em>

$=\frac{7}{2} \\\\=3\frac{1}{2}\ hours.$

<u><em>Thus, Lily spends </em></u> $3\frac{1}{2}\ hours$ <u><em> for babysitting which is less than 4 hours.</em></u>

Therefore, Lily babysit for less than 4 hours.

4 0

3 years ago

A profit function is derived from the production cost and revenue function for a given item. The monthly profit function for a c

SpyIntel [72]

Check the picture below.

$\bf \textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{lccclll}
P(x) = &{{ -0.05}}x^2&{{ +500}}x&{{ -100000}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)\\\\
-------------------------------\\\\
\textit{so }-\cfrac{b}{2a}\textit{ units maximize the profit, and}\\\\\\
c-\cfrac{b^2}{4a}\textit{ dollars is the maximum profit}$

5 0

3 years ago

To find the quotient 5/7 divided by 1/3 multiply..

cestrela7 [59]

Answer:

Multiply 5/7 by 3

Step-by-step explanation:

To find the quotient (division) multiply by the reciprocal. The reciprocal of 1/3 is 3.

8 0

3 years ago