Help, i've been trying for around 30mins and I can't figure it out.

Answer:

3x - 4y

Step-by-step explanation:

(2x - 5y) + (x + y)

2x + -5y + x + y          <--- Let's remove the parentheses

(2x + x) + (-5y + y)    <--- Combine Like Terms

3x - 4y        <--- Final Answer :)

Answer:

(2x *x) + (-5y + y)

[tex] {2}^{2} + - {5y}^{2} [/tex]

Answer:

[tex]3.4 \: apple \: pounds = 5.61 \: dollars \\ 1 \: apple \: pound = \{ \frac{(1 \times 5.61)}{3.4} \} \: dollars \\ \\ = { \boxed{ \boxed{1.65 \: dollars \: per \: pound}}}[/tex]

Answer:

1.65

Step-by-step explanation:

5.61/3.4=1.65

[tex]5a + 3 {a}^{2} \\ = 5( - 3) + 3( { - 3}^{2} ) \\ = - 15 + 3(9) \\ = - 15 + 27 \\ = 12[/tex]

I hope I helped you^_^

Answer:

12

Step-by-step explanation:

5a + 3a^2 when a = -3

~Substitute

5(-3) + 3(-3)^2

~Simplify

-15 + 3(9)

-15 + 27

12

Best of Luck!

Answer:

LCD = 8

Step-by-step explanation:

All you have to do is times both the denominator and numerator of 1/2 by 4.

So 1 times 4 = 4 and 2 times 4 is 8.

4/8 and 3/8

Answer:

3²-5

Step-by-step explanation:

(3-2²)+5=4

3²-5=4

Answer:

D

Step-by-step explanation:

First off, lets simplify (3-2^2)+5 = -1+5 = 4

We will need to  find an expression that will equal to 4

lets try 1, 5-2^2 = 1, 1 =\ 4

Alright, lets try 2, 2^2 -5 = -1, -1=\5

Now lets try 3, 5 - 3^2 = -4, -4=\4

So by process of elimination we can say that D is correct by I will show you why it is correct. 3^2 -5 = 4, 4=4

If you have any questions ask me.

Hope it helped :)

$81.53 is the cost of nut-raisin mix

Answer:

i dont think it is possible since you are losing percentage by the fifth time you are taking a quiz so if the max score is 120 it is not possible to still get 100 percent on the fifth try to will lose percent i think you can get 100 percent by the second or third try

Step-by-step explanation:

Answer:

- 376

Step-by-step explanation:

8u = 8(- 8i + 3j ) ← multiply each element by 8

    = - 64i +24j

Then

(- 64i + 24j ) • (4i - 5j )

= (- 64 × 4) + (24 × - 5)

= -256 + (- 120)

= - 256 - 120

= - 376

Answer:

[tex]c(ge + p) = n + j \\ \\ \frac{c(ge + p)}{(ge + p)} = \frac{n + j}{(ge + p)} \\ \\ { \boxed{ \boxed{c = \frac{n + j}{ge + p} }}}[/tex]

Answer:

3.25

Step-by-step explanation:

1 hong kong dollar = 0.13 cents in us dollars

0.13x25=3.25

The value of 25 Hong Kong dollars in U.S dollar is $3.1969

Given that :

$1 = 7.82 Hong Kong dollars

Let the equivalent Number of U.S dollars = p

This means that :

$1 = 7.82 Hong Kong dollars

$1 = 7.82 Hong Kong dollars $p = 25

Cross multiply :

25 × 1 = 7.82 × p

25 = 7.82p

Divide both sides by 7.82

25 / 7.82 = p

p = $3.1969

Hence, 25 Hong Kong dollars is 3.1969 U.S dollars.

Learn more : https://brainly.com/question/18109354

Answer:

126 cats .................

126 dogs........

Answer:

450

(I can't post the answer if it's less than 20 letters so just ignore this I'm trying to fill up)

Answer:

4

456

4567

456

Step-by-step explanation:

What is the probability of drawing a red card or a queen from a standard deck of 52 cards?

7 over 13

15 over 26

1 half

1 over 26

The probability for red card or queen is given as 15/26. The correct option is (B).

Probability is the branch of Mathematics that deals with the measurement of the chance of occurrence of a random event.

The probability of any event always lie in the close interval of 0 and 1 [0,1].

The zero value of probability indicates that the event will not happen while its value equal to one indicate that it will happen.

The total number of red cards in the deck is 26.

And, the number of queens in the deck is 4.

Now, the probability of getting red card is given as,

P(red cards) = Number of red cards ÷ Total number of cards

⇒ P(red cards) = 26/52 = 1/2.

Similarly, the probability of queen is,

P(queen) = 4/52 = 1/13

Thus, the probability of drawing a queen or red card is given as,

P(red card or queen) = P(red card) + P(queen)

⇒ P(red card or queen) = 1/2 + 1/13 = 15/26.

Hence, the probability of drawing a red card or a queen from a standard deck of 52 cards is 15/26.

To know more about probability click on,

https://brainly.com/question/11234923

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Answer:

Step-by-step explanation:

2

Answer:

f = 86

Step-by-step explanation:

f = 9/5c + 32

~Substitute

f = 9/5(30) + 32

~Simplify

f = 54 + 32

f = 86

Best of Luck!

Answer:

Use the given functions to set up and simplify −by−Step.

f(9)=−55

Re-order terms so constants are on the left

⋅9=−55

f⋅9=−55

9=−55

Divide both sides of the equation by the same term

Simplify

Solution

=−55/9

Answer:

6 1/4 cups of flour

Step-by-step explanation:

24/2 = 12

2.5/2 = 1.25

12 x 5 = 60

1.25 x 5 = 6.25 cups

For every 24 cookies Markes needs 2.5 cups of flour. So, for 12 cookies he needs half of that which is 1.25 cups. 12 is a fifth of 60, so we multiply 1.25 by 5 which gives us 6.25 cups of flour. :D

Answer:

70

Step-by-step explanation:

The prime factors of 350 are 2,5,7. Therefore, the product of prime factors = 2×5×7=70

Answer:

Step-by-step explanation:

9514 1404 393

Answer:

Step-by-step explanation:

We understand this to be two separate problems.

  -3/9 +(-2 9/10) = -(3/9 +2 9/10)

  = -(10/30 +87/30) = -97/30 = -3 7/30

__

  -3√(8 +(-2(9/10))) = -3√(8 -1.8) = -3√6.2 ≈ -7.46994

__

Additional comment

A calculator can help with these, especially if it is able to deal with rational numbers. (Many graphing calculators and some scientific calculators will do that more or less nicely. My favorite Android calculator app makes arithmetic with fractions and mixed numbers very easy.)

Answer:

Three non-collinear points determine a plane.

Step-by-step explanation:

This statement means that if you have three points not on one line, then only one specific plane can go through those points. The plane is determined by the three points because the points show you exactly where the plane is

Answer:

1

Step-by-step explanation:

-11-(-12) is just -11 plus 12 so 1 is your final answer because 2 negatives make a positive when multiplying.

Answer:

1

Step-by-step explanation:

Answer:

The monthly net pay is [tex]\$1555[/tex].

Step-by-step explanation:

Step 1 :

Quintina decided to increase the deduction percentage of her federal income tax rate from [tex]14\%[/tex] to [tex]16\%.[/tex]

Quintina gross pay per month is [tex]\$2,100[/tex]

[tex]16\%[/tex] is written in the decimal form.

[tex]=\frac{16}{100}[/tex]

[tex]=0.16[/tex]

Federal income tax

[tex]=0.16[/tex]  × Gross pay

[tex]=0.156[/tex]  × [tex]2100[/tex]

[tex]=336[/tex]

Step 2:

Monthly net pay = Gross pay- Federal income tax - State Income Tax – social Security- Medicare.

[tex]=2100-336-89-85-35[/tex]

[tex]=2100-545[/tex]

[tex]=\$1555[/tex]

Therefore, the monthly net pay is [tex]\$1555.[/tex]

Learn more about income tax, refer:

Answer$1555

Step-by-step explanation:

Answer:

[tex]? \times \frac{?}{?} [/tex]

d

Answer:

2 by 25 feet.

Step-by-step explanation:

Let L and W be the length and the widht of the field

we want W = L + 23 and W x L = 50

So

(L + 23) x L = 50

[tex]L^2 + 23L = 50\\L^2+23L-50 =0\\(L+25)(L-2)=0\\L=-25 \text{ or } L = 2[/tex]

Since L must be positive then L =2 and W = 2 + 23 = 25.

Answer:

The conference will be over at 2:15 pm.

Step-by-step explanation:

Answers:

D. Dividing by 6

F. Multiplying by 1/6

Step-by-step explanation: Dividing both sides by 6  and Multiplying by 1/6 will isolate the variable on one side because we will get the value of what x is equal too. X is equal to 7.

Answer:

D,E,F,G

Step-by-step explanation:

9514 1404 393

Answer:

Step-by-step explanation:

In order for the total displacement to be zero, the amount of forward displacement must be equal and opposite to the amount of backward displacement. Since the steps are the same length, they must be equal in number.

Half of the 10 steps were forward, and the other half were backward.

  5 steps forward; 5 steps backward.

_____

Additional comment

Math develops from an effort to model the real world. It would probably give you some insight into this problem if you were to physically take some steps to see how many forward and backward you would need to end where you start.

Answer:

S = 8

Each side of a face is 8 units.

Step-by-step explanation:

The surface area of the cube is 384 units.

One face of the cube has an area of s^2

A cube has 6 faces

6s^2 = 384                                 Divide by 6

s^2 = 384 / 6

s^2 = 64                                     Take the square root of both sides

sqrt(s^2) = sqrt(64)

s = 8

Answer:

8 units

Step-by-step explanation:

Area of 1 side = 384 ÷ 6 = 64 sq units

Length of 1 side = sq.rt. (64) = 8 units Answer