Which expression is equivalent to 30(1/2x-2)+40(3/4y-4)
o 45xy-220
o 15x-30y-220
o 15x+30y-220
o 15x+30y-64

Answers

Answer 1
the third one [15x+30y-220]
Answer 2

Answer: C

Step-by-step explanation:


Related Questions

HELP PLEASE!! Multiply.

(2x−7)(x+4)

Enter your answer in the box.

Answers

Answer:

2[tex]x^{2}[/tex]+x-28

Step-by-step explanation:

To solve binomial multiplication problems you can use the FOIL method. FOIL means first, outside, inside, last, which tells you what order to multiply the terms.

Multiply the first terms,

(2x-7)(x+4)

2[tex]x^{2}[/tex]

Then the outside terms,

(2x−7)(x+4)

8x

Next the inside terms,

(2x−7)(x+4)

-7x

Finally the last terms,

(2x−7)(x+4)

-28

To find the answer put all of the products together and simplify

2[tex]x^{2}[/tex]+8x-7x-28

2[tex]x^{2}[/tex]+x-28

p = 240 – 172
g=
9 x 8/-24

Work out the value of p×q​

Answers

Step-by-step explanation:

I hope I got it right and I hope this helps

CAN ANYONE DO IT. PLZ

Answers

Answer:

70°

Step-by-step explanation:

see image below

Answer:

10 is your answer.

Step-by-step explanation:

pls give me brainlest

Which graph shows a dilation?

Answers

The answer is C. in a dilation the shape must be the same.

The second graph is the only option that has equal increment by a common factor and it is the only graph that shows dilation.

A dilation in graph is also known as transformation.

In the process of transformation or dilation in graph, all distances on the coordinate plane are increased by a common factor. It usually involves multiplying either all x-coordinates or all y-coordinates by a common factor greater than one.

The increased x-coordinates is known as horizontal dilation and the increased y-coordinate is known as vertical dilation.

The second graph is the only option that has equal increment by a common factor. Thus, the second graph shows dilation.

Learn more here: https://brainly.com/question/14647194

Can someone help me pls

Answers

C!!!!!!!!!!!!!!! Hope I’m right

find the ragio p:r if p:a=1:2, a:b=2:3, b:c=5:1, c:r=3:2​

Answers

Answer:

p : r = 5 : 2

Step-by-step explanation:

Expressing the ratios in fractional form, then

[tex]\frac{p}{r}[/tex] = [tex]\frac{p}{a}[/tex] × [tex]\frac{a}{b}[/tex] × [tex]\frac{b}{c}[/tex] × [tex]\frac{c}{r}[/tex]

  = [tex]\frac{1}{2}[/tex] × [tex]\frac{2}{3}[/tex] × [tex]\frac{5}{1}[/tex] × [tex]\frac{3}{2}[/tex]

   = [tex]\frac{30}{12}[/tex]

  = [tex]\frac{5}{2}[/tex]

Thus ratio p : r = 5 : 2

Put the fractions in order from smallest to largest:

3/4
1/3
5/8​

Answers

Answer:

1/3

5/8

3/4

Step-by-step explanation:

Write the equation of the line in slope-intercept form.

Answers

Answer:

The line intercepts at 0,1 and 0.5,0

Step-by-step explanation:

(Grade6math) Can somebody plz help answer all of these in simplify form (if u know how to) thanks so much :)

WILLL MARK BRAINLIEST

Answers

1.= 1
2.= -15
3.= -18
4.= -1
5. = -11
6. = 22

Solve for the missing angles and side lengths A= 20 degrees, b=4 a = 4.5 Find the measure of C
a )18 degrees

b)142 degrees

c)160 degrees с​

Answers

Answer:

Its 142

Step-by-step explanation:

Theres a website called triangle calculator and you put in three things wether its SSA or ASA or whatever and it gives you all the measurements. Good luck on your quizzes and tests :)

Mia uses of a bag of soil in the morning and of a bag in the afternoon
About how much soll does she use in one day?

Answers

Answer: 2 bags of soil

Step-by-step explanation:

The graph below represents the price of sending picture messages using the services of a phone company. What is the constant of proportionality?

A graph is shown. The values on the x axis are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. The values on the y axis are 0, 22, 44, 66, 88, 110, 132, 154, 176, 198, 220. Points are shown on ordered pairs 0, 0 and 2, 44 and 4, 88 and 6, 132 and 8, 176. These points are connected by a line. The label on the x axis is Picture Messages Sent. The label on the y axis is Price in cents.

10
11
21
22

Answers

Answer:

the answer is 22

Step-by-step explanation:

i took the test

Answer:

22

Step-by-step explanation:

Can somebody help me plz and thank you

Answers

Answer:

sure, what do you need help with?

Step-by-step explanation:

A convenience store sells 1/3 pound of one brand of trail mix for $1.50 and 1/2 $2.15. Witch brand has lower price per pound?

Answers

Answer:

1/2 pound brand has a lower price

Step-by-step explanation:

convert both to having 6 for denominator

2/6 and 3/6 if you buy a whole pound the 1/3 is going to cost $4.50 and the 1/2 is going to cost $4.30

A circle has radius 40 cm. Which of these is closest to its area, in square centimeters?

Answers

Answer:

251 cm2

Step-by-step explanation:

The area of the circle whose radius is 40 cm is 5026 cm².

What is a circle?

A circle is a curve sketched out by a point moving in a plane so that its distance from a given point is constant; alternatively, it is the shape formed by all points in a plane that are at a set distance from a given point, the centre.

Given that the radius of the circle is 40cm. Therefore, the area of the circle will be,

Area of the circle = π × Radius²

                             = π× (40cm)²

                             = 1600π cm²

                             = 5026.54 cm²≈ 5026 cm²

Hence, the area of the circle is 5026 cm².

Learn more about Circle here:

https://brainly.com/question/11833983

#SPJ1

A cyclist starts a journey from town A. He rides 10km north then 5km east and finally 10 km on a bearing of M45°E​

Answers

Answer:

75 km

Step-by-step explanation:

X^2+36

How to solve this with factoring?

Answers

Answer:

not factorable

Step-by-step explanation

A building with a height of 6 m casts a shadow that is 8 m long while a taller building casts a 24 m long shadow. What is the height of the taller building?

Answers

Answer:

I am pretty sure it is 22m

Step-by-step explanation:

minus 2

A civics teacher asked her students to indicate whether they believed each of two headlines. One headline was false and the other was true, but the students did not know this. The probability that a student selected at random believed the true headline was 90\%90%90, percent and the probability that the student believed the false headline was 82\%82%82, percent. She found that 75\%75%75, percent of the students believed both headlines.

Answers

Answer:

The events are not mutually exclusive.

Step-by-step explanation:

To determine that in the sample, are the events "believed the false headline" and "believed the true headline" mutually exclusive.

For two events, let say E₁ and E₂ are said to be mutually exclusive if they cannot both occur simultaneously. In set-theoretical notation, we can say that the two sets  E₁ and E₂ are disjoint. i.e.  E₁ ∩  E₂ = ∅ and the probability of them occurring at the same time is zero. i.e. Pr(  E₁ ∩  E₂ ) = 0

So, we can say;

Let P(true) = E₁  

P(false) = E₂

Thus; statistically:

Pr(  E₁ ∩  E₂ ) = Pr(E₁) + Pr(E₂) - P( E₁  ∪ E₂ )

So;

the probability of students that believed the true headline P(E₁) = 0.90

the probability of students that believed the false headline P(E₁) = 0.82

the probability of students that believed both P( E₁  ∪ E₂ ) = 0.75

Pr(  E₁ ∩  E₂ ) = 0.90 + 0.82 - 0.75

Pr(  E₁ ∩  E₂ ) = 0.97

Thus, the events are not mutually exclusive.

Amir needs to use how many ?
tablespoons of olive oil.

Answers

Answer:

Step-by-step explanation:

^^lol can u post the question wait a min i took this it’s 32 tablespoons

Paula has $54. She bought some pencils, each costing $0.75, and a paper ream for $2.50. She is left with $42.50 after buying pencils and the ream of paper. She uses the equation Syntax error from line 1 column 49 to line 1 column 73. Unexpected 'mathsize'. to find the number of pencils she bought. How many pencils did Paula buy?

Answers

Answer:

12 pencils

Step-by-step explanation:

let no. of pencils bought be x.

54 - 0.75x - 2.50 = 42.50

9 = 0.75x

x = 12

Topic: algebraic equations

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

1 If x = 6, which inequality is true? A 5 - 3x > 10 B 3 - 5x 13 D 5 - x < -3

Answers

Answer:

sorry what do you write for B???

3-5x?? 13

Need help anyone know

Answers

Answer:

40

Step-by-step explanation:

b and the angle next to the 140 degree angle are congruent, and thus they are supplementary to 140

180-140=40

7th GRADE MATH hellp​

Answers

I'm not sure if it is A or B

Answer:

I took 5 minutes to think this through, hope I'm right cause been a long time since my brain killed me over this one question. I believe the answer to this is B, cause the students might of gotten two chances to get picked so I'll stick with B. So sorry if I'm wrong. 3 students 2 chances... yea it's B.

Step-by-step explanation:

ill mark brainliest if you are correct

Answers

Answer:

$24/3shirts = c/7 shirts c=56

Step-by-step explanation:

Answer:

56

Step-by-step explanation:

i need to get this done

Answers

Answer:

x = 17 and y = 8

Step-by-step explanation:

Since (6x + 3) and (8x - 31) are alternate interior angles, they are congruent.

Therefore, you can set them equal to each other and solve for x.

8x - 31 = 6x + 3

Combine like terms

2x = 34

Divide both sides by two

x = 17

Since (5y + 35) and (6x + 3) are consecutive interior angles, they add up to 180. Plug in 17 for x.

(5y + 35) + (6(17) + 3) = 180

Add like terms

5y + 140 = 180

5y = 40

y = 8

Write an equation in slope-intercept form (y = mx + b) for the line that has a y-intercept of (0, -5) and a slope of 2/3

Answers

The answer is y = 2/3x - 5

Can someone please help me with this question?

Answers

Answer:

PQ = 9.4

Step-by-step explanation:

to solve for PQ, use the distance formula

d = [tex]\sqrt{(x2-x1)^{2} + (y2-y1)^{2} }[/tex]

use two points

(x1,y1) = (4,3)

(x2,y2) = (-4,-2); and substitute into distance formula

d = PQ = [tex]\sqrt{(4+4)^{2} + (3+2)^{2} }[/tex] = [tex]\sqrt{8^{2} +5^{2} }[/tex] = [tex]\sqrt{64+25}[/tex] = [tex]\sqrt{89}[/tex] = 9.4

A rotating sprinkler that sprays water at a radius of 7 feet is used to water a lawn. Determine the area of the lawn that is being watered. Use 3.14 for pi. Round to the nearest tenth.

Answers

Answer:

49Pi

Step-by-step explanation:

Area of a circle is = to pi(r)^2

what does a postive plus a postive equal

Answers

it equals a negative

Answer:

A Positive Sum

Step-by-step explanation:

Positive addends will always have a positive sum.  There will not be adequate value for the sum to be negative.

Examples:

43 + 5 = 48

100, 424 + 532 = 100,956

Hope this helps.

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