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Virty [35]
2 years ago
14

Subtract fractions like 42/7- 2 1/5

Mathematics
1 answer:
dangina [55]2 years ago
6 0

Answer:

3.8 in decimal form, or 3 4/5

Step-by-step explanation:

I just used a calculator, sorry :(

anyways, hope this helped! :)

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Y = -2(x + 5)(x + 1)<br> Set the factor (x + 5) = 0 and solve
Harrizon [31]

Answer: x=-5

Step-by-step explanation:

x+5=0 \implies x=-5

7 0
2 years ago
Need help with solving please
attashe74 [19]

Answer:

x=8

Step-by-step explanation:

4 ^(1/2x) = 256

Rewriting 256 as a power of 4

4 ^(1/2x) = 4^4

Since the bases are the same, the exponents are the same

1/2x = 4

Multiply each side by 2

1/2x *2 = 4*2

x=8

5 0
2 years ago
Grampy $12 for 4 baseball packs James paid 28 for seven who got a better deal baseball card packs? And why
vitfil [10]

Answer:

Grampy

Step-by-step explanation:

                money      cards

Grampy=   $12             4 packs

 James=    $28            7 packs

12*2= 24 dollars and 8 packs

while James payed 28 dollars for 7 packs

So Grampy got a better deal.

7 0
2 years ago
Solve for x:<br>log x + log 8 = 2<br>​
likoan [24]

Answer: The answer is 252

Step-by-step explanation:

:)))

8 0
2 years ago
Read 2 more answers
Luke invited 20 more boys than girls to his birthday party. However, only ¾ of the boys and ⅔ of the girls came. Exactly 19 of L
sveta [45]

Answer:

68

Step-by-step explanation:

Let:

Number of girls invited = x

Number of boys = x +20

3/4 of boy showed up

2/3 of girls showed up

Exactly 19 did not show up

Therefore, we could say:

Fraction of boys that didn't show up = 1 - 3/4 = 1/4

Fraction of girls that didn't show up = 1 - 2/3 = 1/3

That is,

[1/4 *(x + 20)] + [1/3*x] = 19

[(x + 20) / 4] + x /3 = 19

(3(x + 20) + 4x) / 12 = 19

3x + 60 + 4x = 228

7x = 228 - 60

7x = 168

x = 168 / 7

x = 24

Number of girls, x = 24

Number of boys, x + 20 = 24 + 20 = 44

Total friends invited = (24 + 44) = 68

8 0
2 years ago
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