someone help me pleasw

Answer:

Alex spends more time in his homework.

Step-by-step explanation:

To make it easier to compare their homework time on math, convert 2/5 into a percentage: Divide the numerator by the denominator:

Darius: 35%

Alex:  2/5 = 0.40 × 100 = 40%

Seeing both percentages make it easier to determine that Alex spends more time in his homework than Darius.

Answer:

Alex spends more time doing math homework. 2/5 is equal to 4/10 and 4/10 as a decimal is 0.4 which is 40%. 40% is greater than 35% so Alex spends more time than Darius doing math homework.

Hope this helps!

Pls gi brainliest!

Answer:

99 degrees

Step-by-step explanation:

Answer:

In the picture

Step-by-step explanation:

Hey again ! If you have any question feel free to ask !!

Question 4:

Solve for the variable N in [tex]55+8n=4n+107[/tex]

Answer:

[tex]n=13[/tex]

Step-by-step explanation:

1. Subtract [tex]4n+107[/tex] from both sides; [tex]4x-52[/tex]

2. Separate variable [tex]n[/tex] by adding [tex]52[/tex] to both sides; [tex]4n=52[/tex]

3. Simplify equation by dividing by [tex]4[/tex] on both sides; [tex]=13[/tex]

Question 5:

Solve for the variable N in [tex]6-6x=5x-9x-2[/tex]

Answer:

[tex]x=4[/tex]

Step-by-step explanation:

1. Subtract [tex]5x-9x-2[/tex] from both sides; [tex]8-2x[/tex]

2. Separate variable [tex]x[/tex] by adding [tex]2x[/tex] to both sides; [tex]8=2x[/tex]

3. Simplify equation by dividing by [tex]2[/tex] on both sides; [tex]4=x[/tex]

Answer:

yes it is

Step-by-step explanation:

please mark brainiest

Answer:

y = 90

x = 64

Step-by-step explanation:

y is 90 because of right angle

if add 26 + 90 = 116 -> 180 (angle of straight line) - 116 = 64 which is angle of angle to left of y and therefore x bc opposite angles equal each other

or even if you saw the line that includes x, 26, and y, x is still 64

also, the other angle that is blank should be 26+y (if our calculations are correct) so it would be 116 -> and if we add up everything we should get 360 so, x/64 + 26 + y/90 + blank angle/64 + 116 = 360 -> all correct!

Answer:

11. 4

_ X _

20. 14

Step-by-step explanation:

Multiply the numerator

11 X 4= 44

Multiply the denominator

20 X 14= 280

Then, division to the lowest term

44 X 280 = 6

hope it's helpful

pa brainlest po

Answer:

1331

Step-by-step explanation:

Therefore, the answer is 1331.

(-2+5+8)^3

(11)^3

1331

Answer:

Step-by-step explanation:

Answer:

She drank 10.67 oz in one hour.

Step-by-step explanation:

You would multiply the total oz of water drank by the hours.

51 ÷ 6 = 10.6666...

Then you would round it up to 10.67.

Answer:

The correct answer is 8.5 ounces in the matter of one hour

Step-by-step explanation:

To get this answer you will need to use division.

51 divided by 6 will be 8.5 as a decimal

In which was being drank in the matter of one hour

Answer:

Step-by-step explanation:

Opposite angles are non-adjacent angles formed by two intersecting lines. Opposite angles are congruent (equal in measure).

3x = 2x + 16

x = 16

----------------

check

3 * 16 = 2 * 16 + 16

48 = 48

the answer is good

Answer:

x=16

Step-by-step explanation:

Since both angles are vertically opposite, there fore they equal each other.

2x + 16 = 3x

Subtract 3x from both sides

2x - 3x + 16 = 3x - 3x

-x + 16 = 0

-x = 0-16

-x = -16 (Multiply both sides by -1)

x = 16

---------

3x 16 = 48

2*16 + 16 = 48

The given function for the height of the firework is a quadratic function

1. Time at which the firework reaches the maximum height is 1 seconds

2. The maximum height of the firework, is 25 yards

3. Time after which the firework will fall to the ground is (1 + √5) seconds

Reason:

The given function that represents the height of the fireworks with time is

presented as follows;

h(t) = -5·t² + 10·t + 20

1. The time at which the firework reaches its maximum height is given by

the maximum point of the given function as follows;

The x-value of the maximum point of a quadratic function is [tex]x = \dfrac{b}{2 \cdot a}[/tex]

Where;

a, and b, are the coefficient of x² and x, in the general form of a quadratic function f(x) = a·x² + b·x + c

By comparison, we have;

[tex]t = -\dfrac{10}{2 \times (-5)} = 1[/tex]

2. The maximum height is given by plugging in the value of t, at the maximum point into the given function as follows;

h(1) = -5×1² + 10×1 + 20 = 25

3 The time at which the firework will fall to the ground, is given by the zero of the function as follows;

When the firework falls to the ground, h(t) = 0 =  -5·t² + 10·t + 20

Dividing both sides by (-5) gives;

[tex]\dfrac{0}{-5} = \dfrac{ -5 \cdot t^2 + 10 \cdot t + 20}{-5} = t^2 - 2 \cdot t - 4[/tex]

t² - 2·t - 4 = 0

By the quadratic formula [tex]x = \dfrac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}[/tex], we get;

[tex]t = \dfrac{2\pm \sqrt{(-2)^{2}-4\times 1\times (-4)}}{2\times 1} = \dfrac{2\pm \sqrt{20}}{2\times 1} = \dfrac{2\pm 2 \times \sqrt{5}}{2\times 1} = 1 \pm \sqrt{5}[/tex]

Therefore;

Learn more here:

https://brainly.com/question/20628403

Answer:

no solution

Step-by-step explanation:

x+2=x+8

Subtract x from each side

x+2-x = x+8-x

2 = 8

This is never true so there is no solution

Answer:

x+2=x+8

x+2-2=x+8-2

x=x+6

x-x=x+6-x

0=6

Step-by-step explanation:

Answer:

53x−1.18421052/x

Step-by-step explanation:

Answer:

N-K = 6-3 which equals 3.

Step-by-step explanation:

Answer:

Wrong I think... it would be x=1/5

Step-by-step explanation:

-3x +2x is -1x but the rest seems correct.

The value of the expression - 3 x 5 using the multiplication property will be -15. Then the correct option is A.

Algebra is the study of algebraic expressions, while logic is the manipulation of those concepts.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to answer the problem correctly and precisely.

The numbers are given below.

-3 and 5

Then the product of the numbers -3 and 5 will be given by putting a cross sign between them. Then we have

⇒ -3 x 5

⇒ -15

The value of the expression - 3 x 5 using the multiplication property will be -15. Then the correct option is A.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ7

Answer:

[tex]12x+9[/tex] and [tex]99[/tex]° are supplementary to each other.

Step-by-step explanation:

Supplementary means that two angles added together make 180°.

Looking at the graph, you can see that angles [tex]12x+9[/tex] and [tex]99[/tex]° both combined make 180°, so they are considered supplementary.

Answer:

subtract or add 4 to -12 to find the answer

Answer:

z = - 16 , - 8

Step-by-step explanation:

4 units from - 12 is - 16 or - 8 , since

| - 16 - (- 12) | = | - 16 + 12 | = | - 4 | = 4

| - 8 - (- 12) | = | - 8 + 12 | = | 4 | = 4

Answer:

$927.113

Step-by-step explanation:

50-7=43

43×18.94=814.42

100-15=85

100%=18.94

what about 85%

85×18.94=1609.9÷100=16.099

16.099×7=112.693

814.42+112.693= 927.113

Answer:

13×10/5×3= 130/15= 26/3=8.6

Step-by-step explanation:

13 multiplies 10 and 5 multiplies 3 after it gets divided

Answer :

n = 4

Step-by-step explanation:

5n + 34 = -2(1-7n)

first distribute

5n + 34 = -2(1) -2(-7n)

5n + 34 = -2+14n

-5n

+2

then get all of n to the same side

36 = 9n

isolate the variable

36/9 = 9n/9

4 = n

Answer:

n=4

Step-by-step explanation:

Hi there!

We are given the following equation:

5n + 34 = -2(1-7n)

And we want to solve it for n

To do that, we want to isolate n (also written as 1n) on on side by itself.

In this equation, on the right side, we have -2(1-7n), which is in the way. We'll need to open it up.

In order to open up the parenthesis, we'll need to do the distributive property, where we will multiply -2 to both 1 and -7n, then add them together.

-2(1-7n)=-2+14n

That's for the right side.

The equation now looks like this:

5n + 34 = -2 + 14n

Remember that we will be trying to isolate n on one side

Subtract 5n from both sides to remove it from the left side:

5n + 34 = -2 + 14n

-5n                  -5n

__________________

34 = -2 + 9n

Add 2 to both sides to remove it from the right side:

34 = -2 + 9n

+2    +2

______________

36 = 9n

Now, we have numbers on one side and variables on the other, but we're not done yet, since remember; we want just n (or 1n), not 9n. We need to divide both sides by a number that will result in 1n

If we divide a number by itself, then the result is 1

So we should divide both sides by 9

4 = 1n, also written as 4=n , or n=4

Hope this helps!

Answer:

ya

Step-by-step explanation:

Answer:

The answer to your question is 91

Step-by-step explanation:

8289-8=8281 then square of the number is 91 and 91 is soldiers in each row

Total no of soldiers=8289

number of soldiers left out=8

√8281=91

I hope this helps!

Answer:

X = 1 week

Each will have $ 26 in 1 week

Step-by-step explanation:

Tamar: y = 15x + 11

Sister: y = 7x + 19

15x + 11 = 7x + 19

15x - 7x = 19 - 11

8x = 8

x = 8/8

15(1) + 11 = 26

Answer:

its B mark me brainliest plz

Answer:

30 students

Step-by-step explanation:

The 15 students that came were 30% of the class:

30% = 15 students

To find 100%, we can first find 10% by dividing both sides by 3

10% = 3 students

(30% ÷ 3 = 10%, 15 ÷ 3 = 5)

Then, multiply both sides by 10 to get 100%

100% = 30 students

(10% × 10 = 100, 3 × 10 = 30)

Answer:  3/8

Step-by-step explanation:

3  .  1    =  3 x 1     =   3

4     2         4 x 2           8

Answer:

0.2 miles/min

Step-by-step explanation:

Divide 2 by 10:

2/10= 0.2

Hope this helps! :)