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nevsk [136]
3 years ago
11

Simplify 0.3{x-2y}+0.5x-y

Mathematics
1 answer:
galina1969 [7]3 years ago
7 0
0.3[x-2y] + 0.5x - y

Use the distributive property: a(b-c) = ab - ac

0.3x - 0.6y + 0.5x - y

Now, add/subtract all like terms

0.3x + 0.5x - 0.6y - y

0.8x - 1.6y

If you want, we can simplify that down further to:

0.8(x - 2y)
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A souvenir shop sells two sizes of American flags. Small flags cost $3.50 and large flags cost $6.50. On a recent day, 155 flags
Mariulka [41]

Answer:

Small flags = 108

large flags= 47

Step-by-step explanation:

Step one:

given

let the number of small lag be x

and big flags be y

so

3.5x+6.5y= 683.5----------1

x+y=155------------------------2

Step two:

from eqn 2 x= 155-y

put x= 155-y in  eqn 1

3.5(155-y)+6.5y= 683.5

542.5-3.5y+6.5y=683.5

collect like terms

3y=141

divide by 3

y= 141/3

y=47

Step three:

put y= 47 in eqn 2

x+47=155

x= 155-47

x=108

3 0
3 years ago
Circumference C=25 units.
Allisa [31]

The answer is 50. I have the same question and it makes no sense. The r= and the d= are supposed to have answers, but I’m not sure how you get them

8 0
3 years ago
Plzzz helpppp urgenly❤️
kumpel [21]

Answer:

\mathrm{D.} \: (\frac{5}{4} )^{\frac{7}{2}

Step-by-step explanation:

\sqrt{(\frac{5}{4})^7 }

Apply rule : \sqrt{a} =a^{\frac{1}{2} }

((\frac{5}{4})^7 )^{\frac{1}{2} }

Apply rule : (a^b)^c=a^{bc}

(\frac{5}{4} )^{7 \times \frac{1}{2} }

(\frac{5}{4} )^{\frac{7}{2}

7 0
4 years ago
4g+ (3h-4j) h equals 10 g equals 6 j equals 5
butalik [34]

The value of the function 4g+ (3h-4j) is 34.

<h3>How to calculate the value?</h3>

It should be noted that the function that is given is illustrated as:

4g+ (3h-4j)

h = 10

g = 6

j = 5

We will put the values into the expression. This will be

4g+ (3h-4j)

= 4(6) + 3(10) - 4(5)

= 24 + 30 - 20

= 34

Therefore, the value of the function 4g+ (3h-4j) is 34.

Learn more about function on:

brainly.com/question/25638609

#SPJ1

3 0
2 years ago
-5+2a=4a-4-3a help plz and thank you ​
sattari [20]

Answer:

a=1

Step-by-step explanation:

To make this easier, combine like terms first.

-5+2a=4a-4-3a

-5+2a=a-4

Then, add 5 on both sides.

-5+2a=a-4

<u>+5         +5</u>

2a=a+1

Now, subtract a on both sides.

2a=a+1

<u>-a  -a</u>

a=1

Hope this helps you out!!!! Have an amazing day :3

7 0
3 years ago
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