All categories

3 years ago

Four fifts times what equals two thirds

Mathematics

1 answer:

SVEN [57.7K]3 years ago

7 0

(4/5)*what = (2/3)
Multiply by 5/4
.. what = (2/3)*(5/4)
.. what = 5/6

You might be interested in

Writing expressions word prob

insens350 [35]

Don’t follow the link he or she gave you.

7 0

2 years ago

What is 875x132 explained

mina [271]

Hope this helps let me know if it does :)

8 0

2 years ago

The table shows a company’s profit based on the number of pounds of food produced.

Bingel [31]

Answer:

$5,300

Step-by-step explanation:

Formulae used,

$a=\dfrac{(\sum x^2y\sum xx)-(\sum xy\sum xx^2)}{(\sum xx\sum x^2x^2)-({\sum xx^2)}^2}$

$b=\dfrac{(\sum xy\sum x^2x^2)-(\sum x^2y\sum xx^2)}{(\sum xx\sum x^2x^2)-({\sum xx^2)}^2}$

$c=\dfrac{\sum y}{n}-b\frac{\sum x}{n}-a\frac{\sum x^2}{n}$

Where,

$\sum xx=\sum x^2-\dfrac{(\sum x)^2}{n}$

$\sum xy=\sum xy-\dfrac{\sum x\sum y}{n}$

$\sum xx^2=\sum x^3-\dfrac{\sum x\sum x^2}{n}$

$\sum x^2y=\sum x^2y-\dfrac{\sum x^2\sum y}{n}$

$\sum x^2x^2=\sum x^4-\dfrac{(\sum x^2)^2}{n}$

Putting the values from the table, we get the best fit line as,

$y= -0.0817x^2 + 102.24x - 20421$

As we want to calculate the profit at 350 pounds, so putting x=350, we get

$y= -0.0817(350)^2 + 102.24(350) - 20421=\$5354.75$

5 0

3 years ago

Read 2 more answers

I put an answer but I’m unsure of it, any help would be much appreciated!!

Darya [45]

First you need to change 45 feet to 540 inches.

Now you can compare the two ratios:
1 : 25 and 25 : 540

We now need to change the second ratio to a unit rate:
25:540 as a unit rate would be 1 : 21.6 and this is steeper than the a 1 : 25 drop

So, your answer would be: pipe drops to much vertically to function properly

8 0

2 years ago

How do you add fractions

WINSTONCH [101]

<span>Step 1: Make sure the bottom numbers are the same.Step 2: Add the top numbers , put the answer over the denominator.<span>Step 3: Simplify the fractio</span></span>

6 0

2 years ago

Read 2 more answers