All categories

3 years ago

Simplify -4/5 divided by 3/-2

Mathematics

2 answers:

mixer [17]3 years ago

8 0

Answer:

$\frac{8}{15}$

Step-by-step explanation:

mojhsa [17]3 years ago

7 0

Answer:6/36

Step-by-step explanation:

You might be interested in

Calculate s5 for the sequence defined by

pantera1 [17]

ANSWER

$S_5= 42.5$

EXPLANATION

The general term of the arithmetic sequence is

$a_n=1+\frac{5}{2}n$

For the first term,we substitute $n=1$ to get,

$a_1=1+\frac{5}{2}\times 1$

$a_1=1+2.5=3.5$

Similarly

$a_5=1+\frac{5}{2}\times 5$

$a_5=13.5$

The sum of the first n-terms is given by the formula,

$S_n=\frac{n}{2}(a_1+l)$

where l is the last term.
In this case

$l=a_5=13.5$

We substitute these values to get,

$S_5= \frac{5}{2} (3.5 + 13.5)$

$S_5= \frac{5}{2} (17)$
$S_5=42.5$

We could have also used the formula,

$S_n=\frac{n}{2}(2a_1+(n-1)d)$

$S_5=\frac{5}{2}(2(3.5)+(5-1)2.5)$

$S_5=42.5$

3 0

4 years ago

Read 2 more answers

35 is 28% of what number? Please explain how you got it.

iren2701 [21]

Answer:

125

Step-by-step explanation:

we have

x*.28= 35

we divide both sides by .28 and get

x= 125

and 28% of 125 = 35

Hope it helps !

5 0

3 years ago

Read 2 more answers

"Verify the identity of (sinx cosx)^2/sinx cosx = 2 + secx cscx"

nata0808 [166]

(sinx + cosx)^2/((sinx)(cosx)) = 2 + (secx)(cscx)
(sinx + cosx)^2/((sinx)(cosx)) = 2 + 1/(sinxcosx); subtract 1/sinxcosx both sides 
(sinx + cosx)^2/((sinx)(cosx)) - 1/(sinxcosx)= 2; multiply through by sinxcosx 
(sinx + cosx)^2 -1 = 2(sinxcosx) 
sin^2 + 2sinxcosx + cos^2 - 1 = 2(sinxcosx); since sin^x + cos^2x = 1 
1 + 2sinxcosx -1 = 2sinxcosx 
2sinxcosx = 2sinxcosx

5 0

4 years ago

Read 2 more answers

The sum of two numbers is 54 and difference is 10. what are the numbers?

Firdavs [7]

$x+y=54\\
\underline{x-y=10}\\
2x=64\\
x=32\\\\
32+y=54\\
y=22
$

7 0

4 years ago

Write your answer in simplest form. 1 over 6 - 1 over 8

Alex

1/6 - 1/8

Find the least common denominator, which is 24.

4/24 - 3/24 = 1/24

5 0

4 years ago