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Hitman42 [59]
3 years ago
15

Solve equation. 2x-5y=20

Mathematics
1 answer:
Novay_Z [31]3 years ago
5 0
If you solve for x you get:
x=(<span><span><span>5/2)</span>y</span>+<span>10
</span></span>
If you solve for y you get:
y=(<span><span><span>2/5)</span>x</span>−<span>4</span></span>
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All the fraction that are greater than 1\2
never [62]
Hi There!

Change all the fractions to decimal you do that by dividing numerator by the denominator. Remember \frac{1}{2}   as a decimal is 0.5

A=  \frac{3}{7}  =    0.43

B=  \frac{5}{9}  =    0.60

C=  \frac{8}{10} =   0.8

D=   \frac{5}{12} =   0.42

E=    \frac{3}{5}   =   0.6

Based, on the data above B,C,E are greater than \frac{1}{2} because they all have decimals greater than 0.5, B= 0.6, C= 0.8, E=0.6

So, \frac{5}{9} ,\frac{8}{10} ,\frac{3}{5}  are all greater than \frac{1}{2}

Hope This Helps :)

6 0
3 years ago
URGENT HELP NEEDED
kondor19780726 [428]
<span>"ratio of princesses to celebrities is 3:1"

The are 3 more times princesses as celebrities.

</span>"<span>The ratio of superheros to princesses is 5:4"

For each 4 princesses, there are 5 superheroes.

For 1 celebrity, there are 3 pincesses.

For 4 celebrities, there are 12 princesses.
For 12 princesses, there are 15 superheroes.

The ratio of celebrities to princesses to superheroes is
4:12:15 or 4x:12x:15x

Add them: 4x + 12x + 15x = 31x

31x = 93

x = 93/31 = 3

Celebrities: 4x = 4(3) = 12
Princesses: 12x = 12(3) = 36
Superheroes: 15x = 15(3) = 45

</span>
3 0
3 years ago
The relative frequency of getting and even number is ___? What is it I got 28% and it says it's wrong.
Mamont248 [21]
The frequency of getting an even number is 48%
5 0
3 years ago
A photograph is 3cm longer than it is wide. If a 4cm border is added to all sides, the the total area will be 460 sq cm. What ar
Paladinen [302]
The answer is 15cm x 12cm
5 0
3 years ago
What is bigger 3/14 or 1/6?
Ksju [112]
3/14 is 0.214 and 1/6 is 0.16
3 0
3 years ago
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