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3 years ago

Help! Will give out brainliest

Mathematics

2 answers:

Nina [5.8K]3 years ago

8 0

Answer:

Step-by-step explanation:

don't know how to explain hope this helps

kotegsom [21]3 years ago

4 0

it would be 75

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Solve the following:<br> a.) X^2 - 2x – 24 = 0<br><br> b.) x^2 - 11x + 18 =0

wolverine [178]

Answer:

The answer for the first equation is,

X = 6, -4

The answer for second equation is,

X = 9,2

7 0

2 years ago

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Need help please and thanks

madreJ [45]

Answer:

2. n = 11

4. g = -2

6. t = 21

8. n = 4

10. y = -1

Step-by-step explanation:

2. 63 = -3(1 - 2n)

Dividing both the side by negative 3 we get

$-21=1-2n\\2n=1+21\\2n=22\\n=\frac{22}{2} \\\therefore n=11$

4. -g + 2(3 + g) = -4(g + 1)

First we will open the bracket by distributive property A( B +C) = AB + AC

$-g+2\times 3 + 2\times g = -4\times g + -4\times 1\\-g+6+ 2g=-4g-4\\\textrm{we will take all the g term the left side and the constant to the right side}\\4g-g+2g=-6-4\\5g=-10\\g=\frac{-10}{5}\\\therefore g=-2$

6.-3(t +5 ) + (4t + 2) = 8

Using distributive property A( B +C) = AB + AC we get

$-3\times t + -3\times 5 + 4t + 2=8\\-3t-15+ 4t + 2=8\\t=8+15-2\\t=21\\\therefore t=21\\$

8. -8 - n = -3(2n -4)

Using distributive property A( B +C) = AB + AC we get

$-8 - n = -3\times 2n - -3\times4\\-8-n=-6n+12\\\textrm{all the n terms to the left inside and the constant of the right-hand side}\\6n-n=8+12\\5n=20\\n=\frac{20}{5}\\ \therefore n= 4$

10. -4( 2 - y) + 3y = 3(y - 4)

Using distributive property A( B +C) = AB + AC we get

$-4\times 2 --4\times y + 3y = 3\times y -3\times 4\\-8+4y+3y =3y-12\\\textrm{all the y terms to the left side and the constant to the right side}\\4y+3y-3y=-12+8\\4y=-4\\y=\frac{-4}{4}\\ \therefore y=-1$

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3 years ago

Natalia bought 6 sweaters. 3 are blue. What fraction of the sweaters are blue?

Ludmilka [50]

Answer: One-Half of the sweaters are blue.

Step-by-step explanation: Half of 6 is 3.

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3 years ago

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Addison worked 6 more hours this week than last week. In total, she worked 72 hours this week and last week. Using the equation

MArishka [77]

Answer:

h = 33 hours

Step-by-step explanation:

Given that,

Addison worked 6 more hours this week than last week. In total, she worked 72 hours this week and last week.

The equation is :

2h + 6 = 72

We need to find the number of hours

2h = 72 - 6

2h = 66

h = 33

Hence, Adison worked for 33 hours last week.

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3 years ago

Angle 7 and angle 8 are complementary. angle 5 equals angle 8 and angle 6=29.

olya-2409 [2.1K]

Answer:

Angle 7 + Angle 8 = 90°

Angle 5 = Angle 8

Angle 6 = 29°

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3 years ago