Hey can I have some quick help please?
Is the answer I chose correct?

4(2x-5)+7(x+2)

bracket means multiplying

do 4(2x+5) first

4*2x=8x

4*-5=-20

7*x=7x

7*2=14

8x-20+7x+14

do the x first

8x+7x=15x

-20+14=-6

answers: 15x-6 or -6+15x

Answer:

It would be about $9

Step-by-step explanation:

you would round $10.80 to $11 because it says to estimate and then you do 20-11 which is 9 so the answer is $9

The required amount that the cashier returned to Allie is 7.20.

Given that,

Allie went to the store and spent $10.80 for her science project. She gave the cashier $20.00. To estimate the amount of change the cashier should give Allie.

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

Here,
Paid amount = $20
Cost of the project = $10.80
Returned amount = 20 - 10.80
Returned amount = $7.20

Thus, the required amount that the cashier returned to Allie is 7.20.

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Answer:

There is no digit in the hundredths place, making this indeditable.

Answer:

it is already rounded to the nearest hundredth

Step-by-step explanation:

the number in the hundredths place would be zero, therefore the rounded number would be as it is (78.5)

Answer:

Step-by-step explanation:

11/334 pounds= roughly 0.329 a pound or 0.33

Answer:

15

Step-by-step explanation:

15 is half of 30, the output values are the input values divided by 2 :)

Answer:

There are 2 terms in the given expression.

Step-by-step explanation:

A term is a simple math expression.

In the expression given, there are two terms: '7h' and '3'.

'7h' - '3​'

Hope this helps.

Answer:

D. 50

Step-by-step explanation:

Answer:

50°

Step-by-step explanation:

180-130=50

Answer: 2(9a + 8)

Step-by-step explanation:

2 is the only common factor of both 18 and 16. You put the common factor outside of the parenthesis. You divide 2 by both numbers and put the equation in the parenthesis.

Answer:

The answer is D

Step-by-step explanation:

I solved this with graphing and got d trust me

pls mark brainliest

Answer:

a) [tex]-5x^{2}[/tex] + 6x + 8

b) 6 - 7x

c) [tex]-12x^{2}[/tex] - 7x +4

d) 2x + 5

Step-by-step explanation:

a) (5x + 4) – (x – 2)

(5x + 4) (-x + 2)

[tex]-5x^{2}[/tex] + 10x - 4x + 8

[tex]-5x^{2}[/tex] + 6x + 8

b) (6 – 3x) + (x – 5x)

6 – 3x + x – 5x

6 - 7x

c) (4x + 5) – (3x – 2) – 6

(4x + 5)  (–3x + 2) – 6

[tex]-12x^{2}[/tex] + 8x -15x + 10 -6

[tex]-12x^{2}[/tex] - 7x +4

d) 9x + 5 – 7x

2x + 5

hope this helps!

9514 1404 393

Answer:

  110°

Step-by-step explanation:

The exterior angle is equal to the sum of the opposite interior angles:

  x° = 50° + 60°

  x° = 110°

Answer:

x = 90

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles, then

x = ∠ A + ∠ B = 30 + 60 = 90

Answer:

Ants and by roughly 118,615,000mg greater.

Step-by-step explanation:

According to a quick online search, a regular house fly weighs on average 11.5mg while an ant weighs on average 3.5mg. Now that we have the average weight of each we can multiply this number by the quantity of each to find the approximate total weight.

Flies: 3,990,000 * 11.5mg = 45,885,000mg

Ants: 47,000,000 * 3.5mg = 164,500,000mg

Therefore, based on this calculation we can clearly see that the 47 million ants will have a greater mass and this mass would be approximately

164,500,000 - 45,885,000= 118,615,000mg greater

The ants and by roughly 118,615,000mg greater.

We have given that,$3.99$ million flies or $47,000,000$ ants have a greater mass

A regular house fly weighs on average weighs on 11.5mg while an ant weighs on average 3.5mg. Now that we have the average weight of each we can multiply this number by the quantity of each to find the approximate total weight.

Therfore we can write it as,

Flies: 3,990,000 × 11.5mg = 45,885,000mg

Therefore we get the files mass 45885000mg

For Ants,

47,000,000 * 3.5mg = 164,500,000mg

Therefore, based on this calculation we  clear that the 47 million ants will have a greater mass and this mass would be approximately

164,500,000 - 45,885,000= 118,615,000mg greater

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Answer:

a) 9

b) 4

Step-by-step explanation:

PLS GIVE BRAINLIEST

Answer:

a.9

b.4

Step-by-step explanation:

Hope it helps u....

Answer:

the equations are off

Step-by-step explanation:

x represents adults cost 10 not 20

y childen at g

x+y  less than 25 people

10(x) + 6(y) greater than 200 dollars

Answer:

19,6

Step-by-step explanation:

Answer:

R-{-5}

Step-by-step explanation:

you get the vertex by making the denominator =0

ex.z+5=0 ,z=-5

then we see if the rational function has a constant beside it ex. 3÷z+5-3 ,but in this you Don't have one so its 0

so the vertex would be (-5,0)

the domain =R-{-5} , range=R-{0}

Step-by-step explanation:

-3+5=-10

−3x+5−5=−10−5

−3x=−15

−3x÷−3=−15÷-3

x=5

(-2 4/5)(1 4/5)

=-14/5×19/5

=-14×9/5×5

=-126/25

=-5 1/25

Answer:

3. x = 5

4. -5  1/25

Step-by-step explanation:

Question 3 Solving:

your equation is -3x + 5 = -10

subtract 5 from both sides to get the term with x alone: -3x = -15

divide both sides by -3 to isolate x (remember that a minus divided by minus is plus): x = 5

To check:

plug in 5 to x and see if you get -10 on both sides

-3(5) + 5 = -10

first multiply -3 and 5:

-15 + 5 = -10

then add 5 to -15:

-10 = -10

if the number are equal then you solved the equation correctly

Question 4:

multiply the whole number by the denominator, then add the numerator to the product, and that number will be your new numerator ( make sure to leave the negative sign out of this computation)

so multiply 2 and 5 to get 10, then add 4 to get 14

your new fraction is -14/5

practice doing the same thing to the other mixed fraction

you should get a new fraction of 9/5

multiply the numerators and denominators

so multiply -14 and 9, and multiply 5 and 5

you now have -126/25

divide 126 by 25 to get your whole number of the mixed fraction

you should have -5  ?/25

to find the numerator, multiply your whole number by your denominator (25 x 5 = 125), then subtract this from your numerator of the improper fraction

126-125 = 1

now you have an answer of -5  1/25

Answer: the answer is 35. Are you in k12?

Answer:

A

Step-by-step explanation:

Answer:

5 Over 48

This works for edge 2020

Answer:

The probability of a van getting rented next is 25%.

Step-by-step explanation:

Probability Formula:

Given Information:

Calculations:

Probability of a van getting rented: 1/4 or 25%

Answer:

The "paradox" is flawed because if there exists an unstoppable force, it follows logically that there cannot be any such thing as an immovable object and vice versa.

Step-by-step explanation:

:>

Answer:

nothing happens

Step-by-step explanation:

probably incorrect :0

Answer:

337.5 mg

Step-by-step explanation:

A licensed nurse practitioner is instructed to give a patient 2700 milligrams of an antibiotic over a period of 48 hours. If the antibiotic is to be given every 6 hours

Hence: the number of doses or times the antibiotic would be administered =

48 hours/6 hours = 8 doses(times)

The amount of antibiotic that should be given in each dose is:

48 hours = 2700 mg

6 hours = x mg

Cross Multiply

48x = 2700 mg × 6 hours

x = 2700mg × 6/48

x = 2700/8

x = 337.5 mg

Answer:

Do you need the result of the end?

Step-by-step explanation:

5*3=15

15-3=12

Answer:

2z:2x

or

2z/2x

Step-by-step explanation:

you can write z/x as z:x. Then just multiply both sides by the same number to get an equivalent ratio. Let's multiply by 2.

then the answer will be:

2z:2x or 2z/2x

Have a great day!!

The value of ratio that is equivalent to z / x is,

⇒ s / q

A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y.

Where, x and y are individual amount of two quantities.

And, Total quantity gives after combine as x + y.

Given that;

Two similar triangle are shown in figure.

Now, By definition of similarity,

Ratio of sides of corresponding sides are equal .

Hence, We get;

The value of ratio that is equivalent to z / x is,

⇒ z / x = s / q

Thus, The value of ratio that is equivalent to z / x is,

⇒ s / q

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Complete question is shown in image.

Answer:

The ones in red are my answers and the one in black is given

Step-by-step explanation:

I hope it helps

The completed magic square is given below.

Given that, in a magic square, the numbers in each row and in each column have the same sum. This sum is called the magic sum.

We need to complete the magic square so that each row and each column has a magic sum of 0. Each integer from −4 to 4 appears exactly once.

A square is divided into smaller squares each containing a number, such that the figures in each vertical, horizontal, and diagonal row add up to the same value.

The completed magic square is given below.

The sum in the first row=-1+4+(-3)=0

The sum in the second row=-2+0+2=0

The sum in the third row=3+(-4)+1=0

Hence, the completed magic square is given below.

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Answer:

6

Step-by-step explanation:

To find the greatest common factor of two numbers you find the largest number that can evenly go into both numbers

For example, the greatest number that can even;y go into 12 and 18 is 6

6 x 2 = 12

6 x 3 = 18

There is no number greater than six that can evenly go into both of those numbers therefore it must be the GCF

Answer:

The GCF of 12 and 18 is 6 and here's how you get it...

Step-by-step explanation:

First, you need to compare the factors of 12 and 18.

12: 1, 2, 3, 4, 6, 12

18: 1, 2, 3, 6, 9, 18

To get the factors of the number, look for want numbers can be divided by that number and still get a whole number. Ex. (12 / 3 = 4) 3 is a factor of 12.

The GREATEST common factor you see they have in common is the GCF.

If this helps, please give me brainliest.

Answer:

Step-by-step explanation:

here

total surface area(TSA)= 462 cm²

TSA=3πr²

462 = 3*22/7*r²

462*7=66r²

3,234=66r²

3,234/66=r²

49=r²

√(49=r

r=7

therefore the radia of the hemisphere is 7

now,

volume of hemisphere(V) = (2/3)πr²

V=(2/3)*(22/7)*7²

V=44*7

V=308

Answer:

v=2/3piercube

=2/3×22/7×7×7×7

=2156/3

=718.67cmcube

Answer:

Slope of line A is 1/3

Equation of Line B is y = 2x + 4

Answer:

5x-3(x-2)=4

5x-3x+6=4

2x+6=4

2x= 4-6

2x= -2

x = -1