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blagie [28]
3 years ago
5

48 is 60% of what number

Mathematics
2 answers:
Dovator [93]3 years ago
8 0
60%*m=48
60%=0.6
0.6-:48=80
60%*80=48
48 is 60% of 80


Nikitich [7]3 years ago
7 0

The correct answer is: 48 is 60% of 80

Explanation:

Simply translate "60% of what number is 48" mathematically as follows:

60% * x = 48 --- (1)

x represents "what number" in the sentence

= represents "is."

Now, we can write 60% as \frac{60}{100} when we remove the % symbol. Rewrite equation (1) as follows:

\frac{60}{100} * x = 48

Now evaluate for x:

\frac{60}{100} * x = 48 \\ x = \frac{100}{60} * 48 = 80 \\

Hence the correct answer is 48 is 60% of 80.

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1st. (2 root 2 + root 3 ) ( 2 root 3 - root 2)
satela [25.4K]

Answer:

1st: 3*root6 + 5

2nd: 35*root2 + 115

3rd: 24*root2 - 20*root6 + 15*root3 - 18

4th: 17*root6 - 38

5th: 13*root10 - 42

Step-by-step explanation:

To simplify these expressions we need to use the distributive property:

(a + b) * (c + d) = ac + ad + bc + bd

So simplifying each expression, we have:

1st.

(2 root 2 + root 3 ) ( 2 root 3 - root 2)

= 4*root6 - 2*2 + 2*3 - root6

= 3*root6 - 4 + 9

= 3*root6 + 5

2nd.

(root 5 + 2 root 10) (3 root 5 + root 10)

= 3 * 5 + root50 + 6*root50 + 2*10

= 15 + 5*root2 + 30*root2 + 100

= 35*root2 + 115

3rd.

(4 root 6 - 3 root 3) (2 root 3 - 5)

= 8*root18 - 20*root6 - 6*3 + 15root3

= 24*root2 - 20*root6 + 15*root3 - 18

4rd.

(6 root 3 - 5 root 2 ) (2 root 2 - root 3)

= 12*root6 - 6*3 - 10*2 + 5*root6

= 17*root6 - 18 - 20

= 17*root6 - 38

5th.

(root 10 - 3 ) ( 4 - 3 root 10)

= 4*root10 - 3*10 - 12 + 9*root10

= 13*root10 - 30 - 12

= 13*root10 - 42

8 0
3 years ago
I NEED HELP ASAPP!!!​
Llana [10]

Answer:

c

Step-by-step explanation:

x - 2y = -8 \\y = 5x-2

x - 2 y = - 8

add -x to both sides

x - 2y - x = -8 - x \\- 2y = -8 - x

multiply both sides by -1/2

-2y * (\frac{-1}{2} ) = (-8-x) (\frac{-1}{2} )

y = 4 + \frac{x}{2} \\y = \frac{x}{2} + 4

the equations don't have the same slope so they aren't parallel

The solpes product doesn't equal -1 so they aren't perpendicular

4 0
4 years ago
How much of an alloy that is copper should be mixed with ounces of an alloy that is copper in order to get an alloy that is ​cop
tekilochka [14]

Answer:

1r + 8(400) = 3(r+400)

1r + 320 = 3r + 120

2r = 200

r = 200 / 2 = 1000

1400 * 3 = 420

100 + 320 = 420

Step-by-step explanation:

4 0
3 years ago
Need help on this can somene help me
Natali [406]
Y= 55 degrees is the answer good luck
5 0
3 years ago
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Which type of interest rate is not adjusted for different factors, including inflation?
Murrr4er [49]

Answer:

C: Nominial interest rate

Step-by-step explanation:

C

8 0
3 years ago
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