Va rog rezolvati cu operatii.

Answer:

yes the solution is 8

Step-by-step explanation:

subtract 9 from both sides

1/2x+9-9=13-9

simplify

1/2x=4

multiply both sides by 2

2 x 1/2=4 x 2

simplify

x=8

Answer:

$11.60

Step-by-step explanation:

$9.39

Tax: 3.5%

3.5 ÷ 100 = 0.035 × 9.39 = 0.33

Tax 0.33

9.39 + 0.33 = $9.72

Tip: 20%

20÷ 100 = 0.2 × 9.39 =1.88

tip 1.88

9.72 + 1.88 = 11.60

total $ 11.60

Answer:

Lengths all the three sides are 9m, 18m and 12m

Step-by-step explanation:

Let us assume the length of the second side  to be x m

According to the question:

first side = 2x

third side = x + 3

Applying the formula of perimeter:

Perimeter = length + breadth + height

39 = 2x + x + (x + 3)

39 = 2x + x + x + 3

39 = 4x + 3

39 - 3 = 4x

4x = 36

x = [tex]\frac{36}{4}[/tex]

x = 9

length of the first side (x) = 9 m

length of the second side (2x) =2 × 9 =18 m

length of the third side (x + 3) = 9 + 3 = 12 m

∴ lengths all the three sides are 9m, 18m and 12m

Answer: 70% i think

70% * 2400 = 1680

Answer:

1=y

Step-by-step explanation:

Lets solve first:

6=2y+4

-4    -4

______________

4=4y

÷4   ÷4

______________---

1=y

Hope this helps :3

Answer:

She has 3 dozens left which equals to 36 cookies in all

Step-by-step explanation:

Answer:

Ricardo spends $14 on the backpack and $11 o the binder.

Step-by-step explanation:

First, you have to calculate 56% of the amount Ricardo has to spend on school supplies to find the money he spends on the backpack:

$25*56%=$14

Now, you have to subtract 56% from 100% to find the percentage that he spent on a large binder:

100%-56%=44%

Finally, you have to calculate the 44% of the amount Ricardo has to spend on school supplies to find the money he spends on a large binder:

$25*44%=11

According to this, the answer is that Ricardo spends $14 on the backpack and $11 o the binder.

Answer:

2 years

Step-by-step explanation:

Step one:

Given Information

Principal= $2600

rate = 4.5%

SImple interest = $234

Required

The time T of the investment

Step two:

the expression for simple interest is

[tex]SI= PRT/100[/tex]

substitute

[tex]234= 2600*4.5*T/100[/tex]

cross multiply we have

[tex]234*100= 2600*4.5*T\\\\23400= 11700T\\\\[/tex]

divide both sides by 11700

[tex]23400/11700= T\\\\T= 2 years[/tex]

Answer:

The answer to this question is 10

Answer:

Area = 56mm²

Step-by-step explanation:

Area of a trapezium/trapezoid

[tex] = \frac{1}{2} \times h \times (a + b)[/tex]

[tex] = \frac{1}{ 2} \times 7 \times (4 + 12)[/tex]

[tex] = \frac{7}{2} \times16[/tex]

[tex] = 7 \times 8[/tex]

[tex] = 56[/tex]

Answer:

19,000 mL

Step-by-step explanation:

Answer:

x plus 3y minus 63

Step-by-step explanation:

Answer:

Step-by-step explanation:

we use the formula

(116*100)/35=331.43

Answer:

about 331.43

Step-by-step explanation:

116(100)/35=331.43

Answer:

A

Step-by-step explanation:

Answer: the answer is B: (3,9)

Step-by-step explanation:

Answer:

x = -1

Step-by-step explanation:

The axis of symmetry of the graph [tex]y=(x-3)^2[/tex] is  x=3 but,

If shift the graph 4 units to the left it would mean the new value of x would be -1 as shown here:

[tex]x=3-4\\x=-1[/tex]

-4 because it shifted 4 units to the left so the axis of symmetry of the transformed graph would be x = -1 and since it shifted 2 units down the y-coordinate of the turning point would be -2 so the turning point of the original graph is (3 , 0) and the turning point of the transformed graph is

(-1 , -2) I attached an image so you can visualize clearly

Answer:

Tyrese will receive $39.81 in return.

Step-by-step explanation:

First, you have to multiply the 15 packs for the cost per pack:

15*$5=$75

As there is a 25% discount before tax if 10 or more packs are purchased, you have to calculate 25% of the total cost for the 15 packs and subtract that amount from the cost:

$75*25%=$18.75

$75-$18.75=$56.25

Then, you have to calculate 7% of the amount with the discount and add that to the cost:

$56.25*7%=$3.93

$56.25+$3.94=$60.19

Now, you can subtract $60.19 from $100 to find the change that Tyrese will receive in return:

$100-$60.19= $39.81

According to this, the answer is that Tyrese will receive $39.81 in return.

Answer:

184

Step-by-step explanation:

hope this helps!! :D

Answer: 104 left handed students

Step-by-step explanation:

Ratio: 9:2

We should divide 468 by 9, use the number we find, and then multiply it by 2.

468 / 9 = 52

52 x 2 = 104.

There are 104 left-handed students in the school.

Hope this helps!

Answer:

5/9

Step-by-step explanation:

Answer: B

Step-by-step explanation:

Took the test

First table correctly list the reasons.

Given from fig two lines intersect each other and form angles as shown in fig.

Now we have to prove angle 1 equals to angle 3.

From table first all the step by step statement and reasons are correct but in table second 4th statement is correct but its reason is wrong. similarly in 3rd table 5th statement is correct but its reason is wrong.

So we can say now first table is correctly list the reasons to prove angle 1 equals to angle 2.

For more details on Transitive property follow the link below:

https://brainly.com/question/862440

Answer:

the last one 3.7, 3 3/4, 31/8, 3.89

Step-by-step explanation:

3.7=3.7

3 3/4= 3.75

31/8=3.875

3.89=3.89

9514 1404 393

Answer:

  x = -7

Step-by-step explanation:

Substitute the given value and solve for x

  n(x) = -6x +2

  44 = -6x + 2

  42 = -6x . . . . . subtract 2

  -7 = x . . . . . . . divide by -7

n(x) will have the value 44 for x = -7.

Answer:

see explanation

Step-by-step explanation:

The n th term of an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = - 4 and d = a₂ - a₁ = 1 - (- 4) = 1 + 4 = 5 , thus

[tex]a_{n}[/tex] = - 4 + 5(n - 1) = - 4 + 5n - 5 = 5n - 9

Then

a(50) = 5(50) - 9 = 250 - 9 = 241

Answer:

-12

Step-by-step explanation:

-15+3=x

-12=x

Hope u liked it

Answer:

You can cancel your investment without wasting a lot of money.

Step-by-step explanation:

Short-term means that you dont have it for a long time, so you could basically wait it out and then cancel.

(The upcoming and this sentence is pre-written and copy and pasted in every brainly question or comment I answer.) If this answer helped you please consider giving it brainliest. If my answer was wrong and you got marked wrong for it, I deeply apologize and hope you will forgive me, since everyone makes mistakes sometimes. If you need me to elaborate on my answer or give further explanation on it, please ask and I will do so. If you need to explain your reasoning on your work feel free to use my words- word for word- without crediting me, the answer was made for you anyways! Hope yall learn from my answer and it helps you in the future with assignments, quizzes, test’s, and more! <3 me

Answer:

Short-term investments, also known as marketable securities or temporary investments, are those which can easily be converted to cash, typically within 5 years. Many short-term investments are sold or converted to cash after a period of only 3-12 months. Some common examples of short term investments include CDs, money market accounts, high-yield savings accounts, government bonds and Treasury bills. Usually, these investments are high-quality and highly liquid assets or investment vehicles.

Step-by-step explanation:

Answer:

x = 2

Step-by-step explanation:

g(x) = 2x - 1

g(x) = 3

2x - 1 = 3

Add 1 to both sides;

2x = 4

Divide both sides by 2;

x = 2

Answer:

x=2 I think

Step-by-step explanation:

I'm not sure tho

Answer:

its 0 slope

Step-by-step explanation:

Answer:

b on edge, 16.3

Step-by-step explanation:

trust

The angle between the two given vectors is 16.26°

Here we have the vectors u = (3, 4) and y = (4, 3).

We know that:

u*y = |u|*|y|*cos(θ)

Then:

u*y = 3*4 + 4*3 = 24

And:

|u| = √(3^2 + 4^2) = √25 = 5 = |y|

Then we have:

24 = 5*5*cos(θ)

24/25 = cos(θ)

To find theta, we apply the inverse cosine function in both sides:

Acos(24/25) = θ = 16.26°

If you want to learn more about vectors:

https://brainly.com/question/3184914

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