question : WHICH LINES ARE PARALLEL? HOW DO YOU KNOW ?​

The speed of the boat is 7 miles/hour and the current of the river is 1 mile/hour.

Distance is a numerical representation of the distance between two items or locations. Distance refers to a physical length or an approximation based on other physics or common usage considerations.

We have:

A boat goes 24 miles at a constant speed in 4 hours against a river current.

It takes the boat 3 hours to go the same distance at the same speed with the current of the river.

Let's suppose the speed of the boat is x miles/hour and the current of the river is y

x- y = 24/4

x - y = 6 ..(1)

x + y = 24/3

x + y = 8  ..(2)

Adding equation (1) and (2):

2x = 14

x = 7 miles/hour

y = 8 - 7 = 1 miles/hour

Thus, the speed of the boat is 7 miles/hour and the current of the river is 1 mile/hour.

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Answer:

H (the second graph)

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

Answer is D

Step-by-step explanation:

In order to find the answer you would need to multiply 7 square meters by 7.9 square meters which would get 55.3 square meters.

Answer:

15 boxes!

Step-by-step explanation:

Hope this helps!

The number of boxes of spaghetti required to feed 50 people will be equal to 15 boxes.

The ratio notion is used in mathematics when evaluating two or more numbers. It works as a comparison tool to demonstrate how big or small a particular number is.

A ratio divides two quantities to compare them.

As per the given information in the question,

Total number of people who attended the party first time = 20

Number of spaghetti boxes required to feed 20 people = 6

Let the number of boxes required to feed 50 people be x.

So, the ratio will be,

6 boxes = 20 people

x boxes = 50 people

Perform cross-multiplication,

20x = 50 × 6

x = (50 × 6)/20

x = 5 × 3

x = 15 boxes.

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Answer:

x= [tex]\frac{19}{8}[/tex]

Step-by-step explanation:

8(x−3)−(6−2x)=2(x+2)−5(5−2)

Step 1: Simplify both sides of the equation.

8(x−3)−(6−2x)=2(x+2)−5(5−2)

8(x−3)+−1(6−2x)=2(x+2)−5(5−2)(Distribute the Negative Sign)

8(x−3)+(−1)(6)+−1(−2x)=2(x+2)−5(5−2)

8(x−3)+−6+2x=2(x+2)−5(5−2)

(8)(x)+(8)(−3)+−6+2x=(2)(x)+(2)(2)+−5(5−2)(Distribute)

8x+−24+−6+2x=2x+4+−15

(8x+2x)+(−24+−6)=(2x)+(4+−15)(Combine Like Terms)

10x+−30=2x+−11

10x−30=2x−11

Step 2: Subtract 2x from both sides.

10x−30−2x=2x−11−2x

8x−30=−11

Step 3: Add 30 to both sides.

8x−30+30=−11+30

8x=19

Step 4: Divide both sides by 8.

8x/8=19/8

Answer: x=[tex]\frac{19}{8}[/tex]

8(x - 3) - (6 - 2x) = 2(x + 2) - 5(5 - 2)

8*x - 8*3 - 6 + 2x = 2*x + 2*2 - 5*3

8x - 24 - 6 + 2x = 2x + 4 - 15 ( Cancel equal terms on both sides of the equation)

8x - 24 - 6 = 4 - 15

8x - 30 = -11

8x = -11 + 30

8x = 19

x = 19/8

Answer:

3(2x+4)+2(x-2)

6x+12+2x-4

6x+2x+12-4

8x+8

I am from grade 9 from which grade are you

Answer:

I I'm not 100percent sure but i believe the answere should be D.The cauliflower function has a greater slope, which shows that the cost per pound of cauliflower is greater than the cost per pound of broccoli.

Answer:

option 4

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

108

I hoped that helped

Answer:

60%

Step-by-step explanation:

Answer:

Most 193%

Step-by-step explanation:

246.8/128= 1.928

Answer:

2/9 as a decimal is 0.222 repeating

Step-by-step explanation:

All you have to do is solve 2 divided by 9 and it will give you the answer which is 0.222

Hope this helps!

Answer:

$3.60

Step-by-step explanation:

This is because 10% of 4 results in this answer.

Feel free to give brainliest.

Answer:

Maybe figure 2

Step-by-step explanation:

If it is correct then

Plz plz mark me brainlist

Be happy

Answer:

The number of butterflies he collects = 176

The number of moth he collects = 44

Step-by-step explanation:

This question has to do with ratio.

We are told in the question that:He collects 4 butterflies for every moth.

Hence, the ratio of

Butterflies : Moth

4 : 1

Sum of the proportion = 4 + 1 = 5

We are also told he has a total of 220 butterflies and moths.

Hence:

The number of butterflies he collects is calculated as

4/5 × 220 = 176 butterflies

The number of moth that he collects =

1/5 × 220 = 44 moth

Answer:

Step-by-step explanation:

176 butterflies and 44 moths

Answer:

10

Step-by-step explanation:

The measure of an angle∠I  is 10 degrees between the 450 cm and 640 cm sides.

The Law of Cosines (also called the Cosine Rule) is defined as it relates all three sides of a triangle with an angle of a triangle.

c² = a² + b² − 2ab cos(C)

The cosine rule, also known as the law of cosines, relates all 3 sides of a triangle with an angle of a triangle. it relates the lengths of the sides of a triangle to the cosine of one of its angles.

In the given triangle ΔHIJ,

Sides:

h = 450 m

i = 210 m

j = 640 m

The angle of ∠I  is 10 degrees between the 450 cm and 640 cm sides.

According to the cosine rule,

j² = h² + i² − 2ab cos(I)

Substitute the values in the Cosine Rule,

450² = 210² + 640² - 2(210)(640)cos(I)

After solving we get the value of  angle ∠I :

∠I = 9.56038°

Rounded to the nearest degree.

∠I = 10°

Thus, the measure of an angle∠I  is 10 degrees.

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Answer: Water flows through a pipe at a rate of about 502 milliliters per hour.

Step-by-step explanation:

The flow rate in pints per day will be 0.304 pints/day of the given flow rate.

To convert any unit into another is called a unit conversion.

In order to convert units, we need to care about their dimensions their dimension should not be changed.

For example conversion of a kilometer to a meter is to multiply by 1000 but meter and kilometer both unit is for distance only.

Another example could be kilo gram to gram.

Given,

Flow rate = 6 milliliter/hour

Since, 1 pint = 473 ml ⇒ 1 ml = 1/473 pint

And 1 day = 24 hours ⇒ 1 hour = 1/24 day

Now,

6 milliliter/hour = 6 × 1 ml/1 hour

6 milliliter/hour = (6/473) × 24

6 milliliter/hour = 0.304

Hence "The flow rate in pints per day will be 0.304 pints/day of the given flow rate".

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Answer: 40x4+25 is what you need to do Your answer is 185

Step-by-step explanation:

Answer:

$185

Step-by-step explanation:

25 for the initial fee, then 40 for each hour worked.

40 x 4 = 160

160 + 25 = 185

Answer:

- 7/4

Step-by-step explanation:

1) (y2 - y1)/(x2 - x1)

2) pick two points, mine were (1,-3) and (-3,4)

3) Substitute the values (4+3)/(-3-1)

4) Solve and no matter what points you’ll get -7/4

Answer:

f/c

Step-by-step explanation:

it is bcs 913/4 and the same concept is used

Answer:

Its the second one

Step-by-step explanation:

Answer:

The answer is C. 8 cans of juice for $9.52

Step-by-step explanation:

A. About $1.27 per can

B. $1.23 per can

C. $1.19 per can

D. About $1.22 per can

According to the calculations, 8 cans of juice for $9.52 is the lowest cost out of the four answer choices.

Answer:

5(g + 2s)

5g + 10s

G stands for game ticket and s stands for soda ticket.

Step-by-step explanation:

Let the ticket for the game be g and for soda be s.

This implies that one person spent

g + 2s.

Since they are five in number, they all spent in total:

5(g + 2s), this is the first expression.

The second way of expressing it is opening the brackets, so we have:

5g + 10s, this is the second expression.

Answer:

120 students students could be expected to not be wearing a jacket

Step-by-step explanation:

Based on this, we can work with the assumption that 3/5 of the students that entered the stadium were wearing jackets.

Given that the total population of students that attended the game is 300

This means that 3/5 of the 300 = 180 students.

180 students were estimated to be wearing jackets.

The number of students that were without jackets is 300 - 180 = 120 students