Grand Prix racing cars cover a 120 km race at the following
average speeds. How long do the first five cars take to
complete the race? Answer in minutes and seconds.
First 240 km/h
Second 220 km/h
Third 210 km/h
Fourth 205 km/h
Fifth 200 km/h

Answers

Answer 1
First: 240km/1hour=120km/?hour
Cross multiply and divide
(120*1)/240= 0.5hour
Second: 220km/1hour=120km/?hour
Cross multiply and divide
(120*1)/220=0.545hour
Third: 210km/1hour=120km/?hour
Cross multiply and divide
(120*1)/210= 0.571hour
Fourth: 205km/1hour=120km/?hour
Cross multiply and divide
(120*1)/205= 0.585hour
Fifth: 200km/1hour=120km/?hour
Cross multiply and divide
(120*1)/200= 0.6hour

Related Questions

Find the degree of the monomial.
7a765

Answers

Answer: 1^ degree

Step-by-step explanation: because A is raised to 1 and being the only literal part the degree is one

1 cup of mango and 3 cups of strawberries. And 2 cups of mango and 6 cups of strawberries are they equivalent

Answers

Answer:

Yes

Step-by-step explanation:

First off, let's use an example with the same equivalence:

[tex]\frac{12}{36} =\frac{16}{48}[/tex]

If you divide the denominator by the numerator you have to get 3, otherwise, it's not equivalent.

The constant of proportionality between the denominator and the numerator, if we use x and y, is:

[tex]y=3x[/tex]

So, just like the example and explanation I used, 3 divided 1 is 3 and 6 divided by 2 is 3.

Answer:

Yes, the 2 cups of mango and 6 cups of strawberries are equivalent.

Step-by-step explanation:

The question is based on ratios. Ratios are basically the quantitative relation between two amounts showing the number of times one value contains or is contained within the other. In this instance, you're altering the quantity by 2. So the 1 cup of mangoes becomes 2 cups of mangoes and the 3 cups of strawberries becomes 6 cups.

Another example of this could be:

In the store, for every 1 man there are 4 women. So if you change the amount of men in the store from 1 to 2, the quantity of women would go from 4 to 8.

6x/6 = −42/6
please answer

Answers

Answer:

x = -7?

Step-by-step explanation:

how?

the last screenshot couldn't fit so: 6x/6 = -42/6

According to the graph how much money did you start with in your savings? b. How much money will you have after 5 weeks of saving? c. Fill in the table at the right and extrapolate for weeks 6, 7 and 8.

Answers

Answer:

A

Step-by-step explanation:

will give correct answer brainliest​

Answers

Answer:

1st one: Reflection

2nd one: Rotation

3rd one: Rotation

4th one: Translation

Step-by-step explanation:

1: These figures are flipping across the y-axis, meaning it's a reflection.

2: This figure rotated 90° clockwise, so it's a rotation.

3: This figure rotated 180° both clockwise and counterclockwise, so it's a rotation.

4: This figure just shifted down and to the right, so it's a translation.

PLEASE HELP!! a ring is each a dollar and 4 for 4 dollars. if i decide to buy 10. how much would that cost me?

Answers

It will cost you $10. Please give me brainliest if you found this helpful :)

Graph ​y=4/7x−2​

help asap

Answers

Answer:

(Hope this helps can I pls have brainlist (crown)☺️)

Step-by-step explanation:

Graph in pic

(Credits: Symbolab)

If I could get help………

Answers

Answer:

[tex]x1 = 3 \\ y1 = 10 \\ x2 = 5 \\ y2 = 12 \\ y - y1 = \frac{y2 - y1}{x2 - x1} (x - x1) \\ y - 10 = \frac{2}{2} (x - 5) \\ y = x - 5 + 10 = x + 5[/tex]

enjoy it


Answer these please tell me
1. What the error was
2. How can U check ur answer

Answers

Answer:

The first one: the error was that the 3 shouldn’t have been moved but the 5 should have. The correct answer is k=-8

The second one: the error was that they added the 6 and 4, you would only get -10 if the 4 was - the correct answer is -2

You can check your answer by plugging in your answer to the variable and making sure both side equal each other

Step-by-step explanation:

The first one: the 5 should be - from both side so you get k=-8

The second one: the 4 should be + to both sides. And the -6 and +4 should be added together to get n=-2

Remember you always want to get the variables by themselves.

Sorry that was a lot. Hope it helps!

what is 2 x 24? plz i need help with this

Answers

Answer:

EASY IT'S 48

Step-by-step explanation:

24x2

is the same as

24 + 24

which is 48

Answer:

48

Step-by-step explanation:

         24

      x    2

     ----------

          48

What are the next few terms after the following sequence? 1, 1/2, 1/3, 1/4

Answers

Answer:

1/5, 1/6, 1/7, 1/8,1/9, 1/10,1/11,1/12

Solve each compound inequality -10-2v<6and6v+12<-6

Answers

Answer:

v>-8 ; v<−3

Step-by-step explanation:

−10−2v<6

Step 1: Simplify both sides of the inequality.

−2v−10<6

Step 2: Add 10 to both sides.

−2v−10+10<6+10

−2v<16

Step 3: Divide both sides by -2.

−2v/−2 < 16/−2

v>−8

6v+12<−6

Step 1: Subtract 12 from both sides.

6v+12−12<−6−12

6v<−18

Step 2: Divide both sides by 6.

6v

6

<

−18

6

v<−3

The first picture I sent ( the one which is from -8 to 14) is for −10−2v<6 and the second one (that has -3 to -9) is for 6v+12<−6

I hope this helped :)

Which division problem does the number line below best illustrate? ​

Answers

Answer: A

Step-by-step explanation:

Z-49+851=100+21z /////////////////////////////////////////////////

Answers

Answer:

z=35.1

Step-by-step explanation:

Answer:

z = 351/10 or z = 35.1

Step-by-step explanation:

*Add/subtract numbers: -49 + 851 = 802

z + 802 = 100 + 21z

*Subtract 802 from both sides

z + 802 - 802 = 100 + 21z - 802

*Simplify

z = 21z - 702

*Subtract 21z from both sides

z - 21z = 21z - 702 - 21z

*Simplify

-20z = -702

*Divide both sides by -20

- 20z/20 = - 702/- 20

*Simlify

z = 351/10 or z = 35.1

describe and find the slope of the line

Answers

2.75 the correct answer

2⁴+(2.75+1.75)÷0.9 fast pls helppppp

Answers

Answer:

21

Step-by-step explanation:

First, add the parenthesis

2^4 + 4.50 ÷ 0.9

Second, divide 4.50 by 0.9

2^4 + 5

Third, get rid of the ^4

(2x2x2x2)

16 + 5

21

I don't understand this question can someone help me with this please, please explain!! and thank you for the help!! If u dont know try your best :D

Answers

Answer:

D.) 256

Step-by-step explanation:

The first week she made 4 hats, the next week she made 4 times as much which is 16( 4x4=16). The third week she made 64 (16x4=64). The fourth week she made 256 (64x4)

Answer:

256 hats.

Step-by-step explanation:

You can see that every week, the number of hats knitted increases times 4;

1st week: 4 hats knitted.

1st week: 4 hats knitted in total.

2nd week: 4 times as many hats knitted the first week; (4 x 4 = 16).

2nd week: 16 hats knitted in total.

3rd week: 4 times as many hats knitted the second week; (16 x 4 = 64).

3rd week: 64 hats knitted in total.

4th week: 4 times as many hats knitted the third week; (64 x 4 = 256).

4th week: 256 hats knitted in total.

Sorry I'm late but I hope this helps :)

What is the area of the rectangle?

A. 40 units

B. 45 units

C. 50 units

D. 55 units

Answers

Answer:

-5 x -5 = 25

7 x 5 = 28

28 + 25 = 53

53 + 2 = 55

D. 55

There it is my dear friend.

17
3. Kenny can type 75 words in 3 minutes. What is the constant of
proportionality that relates the number of words, y, to the number of
minutes, x?

Answers

Answer:

25

Step-by-step explanation:

Let this relationship be:

y = kx, where y is the number of words in x minutes.

Use the given numbers to find the value of k:

75 = 3kk = 75/3k = 25

State the angle relationship and state the measure of each angle indicated that makes lines u and v parallel

Answers

Answer:

5) Alternate Exterior angles       90º

6) Same side Interior angles.     132º if that says 48º on the page

7) Corresponding angles.       too blurry but they are congruent

8) Alternating Exterior angles.       too blurry but they are congruent

Step-by-step explanation:

Congruent means they are the same measurement just as a reminder :).

solve for x
5=7+x
x=

Answers

X=-2 so you have to get x alone which you subtract 7 from 5. You take the seven and subtracted it to the left side, which leaves -2 and that’s your answer
Answer X= (-2)

Step-by-step:

5-x = 7
-x = 7-5
-x = 2
So x = -2

Hope this help~

the sum of two numbers is 6 and the sum of their squares is 28. Find the exact values of these numbers

Answers

Answer:

The highest value I could get, without going over, is 5+1=6 and 25+1=26

Step-by-step explanation:

fill in the missing number-

2 + ? = -5​

Answers

Answer:

the answer is -7

please mark this as brainliest

[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{solution}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]

let the missing number be x,

[tex]2 + x = - 5[/tex]

[tex]x = - 5 - 2[/tex]

[tex]x = - 7[/tex]

hence, the missing number is -7

1 step multiplication equation that equals 20

Answers

Answer:

5x4

Step-by-step explanation:

5x4=20

Answer:

2 times 10 equals 20, or 5 times 4 equals 20.

Step-by-step explanation:

This is as simple as understanding what multiplies together to equal 20. I hope this helps!

Phil is riding his bike. He rides 29 miles in 2 hours, 43.5 miles in 3 hours, and 58 miles in 4 hours. Find the constant of proportionality and write an equation to describe the situation. Let x represent the number of hours.


What is the constant proportionality?

And what is the equation that best describes the relationship?

Answers

did this test 100 an got an hundred and help all of my class becaseu i am the teacher

y = 3 x ² + 1 , if the input is 4 , what us the output

Answers

Answer:

the out put would be 49

Step-by-step explanation:

candice king is candice king

Comaparing and ordering real numbers lesson 3

Answers

Where is the problem?

is 3/4 and 10/15 proportional

Answers

Answer:

3/4 and 10/15 are not proportional

Step-by-step explanation:

3 is not a factor of 10 and 4 is not a factor of 15

Answer:

No

Step-by-step explanation:

3/4 is already simplified all the way, but 10/15 is not. 10/15 simplifies down to 2/3 (because 5x2=10 and 5x3=15), which is not equivalent to 3/4.

Equivalent ratio for 13:10

Answers

Answer:

26:20

Step-by-step explanation:

Answer:

26:20

Step-by-step explanation:

There is no way to simplify this ratio as 13 is a prime number, but you can make the ratio bigger by multiplying both sides of the ratio by equivalent numbers, like 2:

13 x 2 = 26

10 x 2 = 20

26:20

Area work I’ve completely forgotten how to do it

Answers

area of triangle=BxH/2
18x4/2
36/2
=18

Answer:

18 x 4 = 72

72/2 = 36

36 is the answer

Step-by-step explanation:

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