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3 years ago

PLZZ HELPP ILL GIVE BRAINLIST

Mathematics

2 answers:

Sonja [21]3 years ago

7 0

Answer:

Step-by-step explanation:

dedylja [7]3 years ago

4 0

Answer:

Step-by-step explanation:

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2) <

3) <

4) =

5) <

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75 percent of 104 is the same as 80 percent of what number?

Mashutka [201]

104*.75=78
78/8=9.75(divide by 8 because 80%/8=10%)
9.75*10=97.5
97.5*.8=78

75% of 104 is 78 which is also 80% of 97.5

Your answer is 97.5

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3 years ago

Find the value of 7⁴

Mandarinka [93]

I think 2401...I just asked Siri

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3 years ago

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Solve the system: 2x+6y=36 x+4y=20

Assoli18 [71]

Let's solve this problem step-by-step

Let's set:

2x + 6y = 36 -- equation 1

x + 4y = 20 -- equation 2

(equation 2) * 2

2x + 8y = 40 -- equation 3

(equation 3) - (equation 1)

2y = 4

y = 2 -- equation 4

Plug (equation 4)'s value of y into (equation 2)

x + 4(2) = 20

x = 20 - 8

x = 12

Thus x = 12 and y = 2

Let's check, by substituting these values

$2x + 6y = 36\\2(12)+6(2) = 36\\24+12=36\\36=36\\\\x+4y=20\\12+4(2)=20\\12+8=20\\20=20$

Answer: x = 12 and y = 2

Hope that helps!

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2 years ago

Which is the best but?

garri49 [273]

12.60 / 7 = $ 1.80 per bottle
10.98 / 6 = $ 1.83 per bottle
18.10 / 10 = $ 1.81 per bottle
16.38 / 9 = $ 1.82 per bottle

best buy (cheapest) is : $ 12.60 for 7 bottles <==

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3 years ago

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What are the coefficients in the expression 24x-3y+7z?

kirza4 [7]

So, the coefficients are 24, -3, and 7. The letters next to the coefficients are called "variables".

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3 years ago