Ask question

Ask question

All categories

3 years ago

5

There are 156 laptops and desktop computers in a lab. There are 8 more laptops than desktop computers. What is the total number

of laptops in the lab?

2 answers:

elena-s [515]3 years ago

8 0

86 laptops subtract 156-8

timama [110]3 years ago

7 0

There are 86 laptops

You might be interested in

If 1/√a-√b=1/3 and 1/√a+√b=1/2, then find the difference of a and b.

kow [346]

<u>ANSWER:</u>

If $\frac{1}{\sqrt{a}-\sqrt{b}}=\frac{1}{3}$ and $\frac{1}{\sqrt{a}+\sqrt{b}}=\frac{1}{2}$ then the difference of a and b is 6

<u>SOLUTION:</u>

Given, $\frac{1}{\sqrt{a}-\sqrt{b}}=\frac{1}{3}$ → $\sqrt{a}-\sqrt{b}=3$ ----- (1)

And $\frac{1}{\sqrt{a}+\sqrt{b}}=\frac{1}{2}$ → $\sqrt{a}+\sqrt{b}=2$ --- (2)

We have to find difference of a and b.

Now, add (1) and (2)

$\sqrt{a}-\sqrt{b}=3$

$\sqrt{a}+\sqrt{b}=2$

Adding above two equations, we get,

$2 \sqrt{a}+0=2+3$

$\begin{array}{l}{2 \sqrt{a}=5} \\\\ {\sqrt{a}=\frac{5}{2}} \\\\ {a=\frac{25}{4}}\end{array}$

substitute $\sqrt{a}$ value in (2)

$\begin{array}{l}{\frac{5}{2}+\sqrt{b}=2} \\\\ {\sqrt{b}=\frac{2}{\sin \frac{5}{2}}} \\\\ {\sqrt{b}=\frac{4-5}{2}} \\\\ {\sqrt{b}=\frac{-1}{2}} \\\\ {b=\frac{1}{4}}\end{array}$

Now, difference of a and b is a – b = $\frac{25}{4}-\frac{1}{4}=\frac{24}{4}=6$

Hence, the difference of a and b is 6.

8 0

3 years ago

The storage shed shape of a half-cylinder of radius r and length l.

ira [324]

The first you should have to do is calculate the volume so start by drawing a picture then just go on the math solutions website

5 0

3 years ago

Read 2 more answers

Please help I don't know how to do this

Vinil7 [7]

9514 1404 393

Answer:

7.84 to 8.16 ounces

Step-by-step explanation:

The difference between the actual amount in the bottle and the target amount of 8 ounces can be at most 2% of 8 ounces. That amount is ...

0.02×8 oz = 0.16 oz

The amount in the bottle can be this much higher:

8 + 0.16 = 8.16 . . . ounces

or, it can be that much lower:

8 - 0.16 = 7.84 . . . ounces

The range of values the bottle could contain is from 7.84 ounces to 8.16 ounces.

6 0

2 years ago

Evaluate <br> x<br> — + 6(x-12) when x=12<br> 4

Ghella [55]

Answer:

3

Step-by-step explanation:

x=12

12/4 + 6(12-12)

12/4 +6(0)

12/4 + 0

3+0

3

5 0

3 years ago

dusya [7]

A. This expression has 4 terms
B. The constants are -5, 3, 72 and 10
C. The third term is 72
D. The coefficient is y

3 0

2 years ago