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

Geometric proofs. I just don’t understand it and my teacher isn’t helping.

Answers

The midpoint of a line can be represented by the point that is in the very center of the line. A line segment such as AT also represents half of the line. The symbol of the tilde with the equal sign underneath represents congruence meaning the two segments are the same. Therefore each equation shows the same true statement in a different form

The Swiger family recycles about 15 pounds of waste a week. This is 2/5 of the total waste a week. How many pounds of waste does the family produce each week? (Step by step explanation)

Answers

Answer: 37.5 lb/wk

Step-by-step explanation:

Let X be the total amount of waste.  We are told that (2/5) of X is 15 lb/wk.

(2/5)X = 15 lb/wk

X = (5/2)*(15lb/wk)

X = (75/2) il/wk

X = 37.5 lb/wk

On school days, Kiran walks to school. Here are the lengths of time, in minutes, for Kiran’s walks on 5 school days.

16 11 18 12 13
Create a dot plot to represent Kiran's data.

Add dots on the dot plot below to correctly display the data. To add dots, hover your cursor over the bottom of each column and drag up or down to set the appropriate number of dots.

Answers

Answer:

5

Step-by-step explanation:

Weight of Male Dogs (Ib.)
The most appropriate measure of center for this
data is the median
4
5
COMPLETE
5
0
2.
8
00
Which statement about the data is true?
6
N
2
8
7
2
8
O The mean is greater than the median.
O The mean is equal to the median.
The mean is less than the median.
8
1
9
on
5
DONE
8|1 means 81

Answers

Answer:

65  

Step-by-step explanation:

45, 50, 52, 58, 62, 68, 72, 78, 81, 95  

62 + 68 = 130/2 = 65  

The median is 65

The median of the weight of the male dogs is M = 65 lb

What is Median?

The median is the value that's exactly in the middle of a data set when it is ordered. It's a measure of central tendency that separates the lowest 50% from the highest 50% of values. The steps for finding the median differ depending on whether you have an odd or an even number of data points

Arrange the data points from smallest to largest.

If the number of data points is odd, the median is the middle data point in the list.

If the number of data points is even, the median is the average of the two middle data points in the list.

Given data ,

Let the weights of the male dogs be represented as set A

where the value of A is

Set A = { 45, 50, 52, 58, 62, 68, 72, 78, 81, 95 }

On simplifying , we get

The number of terms = 10

So , the median M = ( 62 + 68 ) / 2

The median M = 130/2 = 65 lb

where the mean is C = 66.1 lb

Hence , the median is M = 65 lb

To learn more about median click :

https://brainly.com/question/28687994

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Please help me last day to do this

Answers

Answer:

Q = 51,  S = 51,  R = 78

.
Aiden buys ice cream and apples at the store.
He pays a total of $15.05.
• He pays a total of $3.80 for the ice cream.
• He buys 3 bags of apples that each cost the same amount.
Write and solve an equation which can be used to determine x, how much each bag
of apples costs.

Answers

Answer:

Equation: y = 3x + 3.80

Cost of each bag: $3.75

Step-by-step explanation:

y = 3x + b

y = $15.05

x = cost of each bag

b = $3.80

3 = # of bags

15.05 = 3x + 3.80

11.25 = 3x

3.75 = x

The equation to determine x is y = 3x + 3.8

and cost of each apple bag is $3.75.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions by connecting them with the equal sign = .

Now it is given that,

Total amount paid by Aiden = $15.05

Total amount paid for ice cream =  $3.80

Number of bags of apple = 3

So if x is the amount of each apple bag and y is the total amount paid by Aiden,

So,Cost of apple bags = 3x

And total amount = 3x + 3.8

or y = 3x + 3.8

this is the equation to determine x.

Now since, total amount paid is $15.05

⇒ 15.05 = 3x + 3.8

or,3x = 15.05 - 3.8

or 3x = 11.25

⇒ x = 11.25/3

⇒ x = $3.75

Thus,the equation to determine x is y = 3x + 3.8

and cost of each apple bag is $3.75.

To learn more about equation:

https://brainly.com/question/13482978

#SPJ2

What is the answer to y=3/4x-5 in standard form?

Answers

Answer:

Standard form Answer : 3x - 4y = 20

Answer:

3x - 4y=20

Step-by-step explanation:

-2(9/4)^2
+9 (9/4)+5

Answers

Answer:

15.125

hope it helps-

Answer:

fraction form: 121/8

decimal form: 15.125

Step-by-step explanation:

if the breadth of rectangle in one fourth of its length and perimeter is 60 cm ,find the length and breadth of rectangle​

Answers

Answer:

Breadth/width = 1.936cm, length = 7.746cm

Step-by-step explanation:

Perimeter of a rectangle would be [tex]2L*2W=60cm[/tex] in this case. Breadth is width.

But we can rewrite this equation given that the width is 1/4 the length. This means 4 of the widths would equal one length.

[tex]W=\frac{1}{4}L[/tex]

[tex]L=4W[/tex]

We can substitute L with the 4W

[tex]2(4W)*2(W)=60cm[/tex]

Now we can just solve for the width W.

[tex]8W*2W=60\\16W^2=60\\W^2=\frac{15}{4} \\W=\sqrt{\frac{15}{4} } \\W=\frac{\sqrt{15} }{2}=1.936cm[/tex]

We now know the width is about 1.936cm

We can find the length given our formula before of [tex]L=4W[/tex]

[tex]L=4(\sqrt{\frac{15}{2} } )=2\sqrt{15} =7.746cm[/tex]

So the breadth/width is 1.936cm and the length is 7.746cm.

I needdddddd help! Please : )

Answers

Answer:

Stop being so desperate.

Step-by-step explanation:

JUST ANSWER NUMBER 10

Answers

Answer:

answer is (14x+6) hope it helps

Ah XD de v b j 14x-6

Helpppppp omggg I’m gonna fail

Answers

Answer:

D.

Step-by-step explanation:

These triangles are similar. Find the missing
length.
h=

Answers

Answer:

Step-by-step explanation:

I have to hit 70 to finish plz help ?!?!?!

Answers

1+14+2+9+18=44
14/44
7/22
I hope this helps

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)

Which pair of triangles must be similar?

Answers

Answer:

they have two corresponding angles that are congruent or equal in measure.

Step-by-step explanation:

BIG BRAIN

find area and perimeter​

Answers

Answer:

Area = 18×(6+9) + (11×9)

= (18×15) + 99

= 270 + 99

= 369m²

Perimeter = 2(18+11) + 2(15)

= 2(29) + 30

= 58 + 30

= 88m

32/80 as a percentage

Answers

Answer:

40%

Step-by-step explanation:

multiply the fraction by a hundred and the answer will have units of percent.

whats the answer to this question
8/x=5/9
x=?

Answers

Answer:

8/14.4 is the answer

Step-by-step explanation:

both equal 0.5555556

Chanyeol makes a rectangle whose area is x^2 - 24x - 52. Find the possible dimension of the rectangle.

A. (x - 2) (2x - 1)
B. (x + 3) (x)
C. (x + 2)(x + 4)
D. (x + 2) (x - 26)​

Answers

Answer:

D

Step-by-step explanation:

Factor the equation.

x² - 24x - 52

Two numbers when multiplied equals to -52 and added equals to -24 are -26 and +2.

Therefore,

(x+2)(x-26) is the right answer.

What is the slope-intercept form of (-12,-6) (8,9)

Answers

Answer:y=3/20+12m+6

Step-by-step explanation: The equation for these types of problems are y=mx+b

the y is the second number, so in the first one the y would be -6, so you replace the y with the -6 and the x with -12

so now the equation is -6=-12m+b

you add the -12m to the other side to make 12m+6=b

now onto the second one, the 9 is the y and the 8 is the x, now the equation is 9=8m+b

this time you replace the b with the equation you got earlier (12m+6=b)

So the equation is 9=8m+12m+6

minus the 6 on both sides

3=8m+12m

add the m's

3=20m

3/20=m

Now you replace the m and the b

y=3/20x+12m+6

(Hopefully im sorry if this isnint correct :) )

Need help #1-3 please

Answers

Answer:

69 squared

Step-by-step explanation:

please answer this question with full explanation​

Answers

The answer is A
Look at the calculator on the working out on the paper

WILL GIVE BRAINLIEST TO FIRST PERSON WHO ACTUALLY TRIES!!!

What is the length of the unknown leg of the right triangle rounded to the nearest tenth of a foot?​

Answers

Answer:

Around 8.8

Step-by-step explanation:

This problem requires the Pythagorean Theorem. We are given the hypotenuse and a leg, so we can plug in what we know.

[tex]{x^2+2^2}=9^2 \\{4+x^2}=81 \\x^2=77\\\sqrt{x^2}=77\\x=\sqrt{77}\\x=8.8, approximately[/tex]

Help me! It’s a short answer question!
12. Find the values of x, y, and z. The diagram is not to scale. (3 points)
360
130
630

Answers

Answer:

x = 81 degrees

<z = 99 degrees

<y = 68 degrees

Step-by-step explanation:

<x = 180 - 36 - 63 = 81 degrees

<x + <z = 180 degrees

81 + <z = 180

<z = 180 - 81

<z = 99 degrees

<y = 180 - 99 - 13

<y = 68 degrees

What is the sum of 12 - 5iand -3 +4i?
-16+ 63i
9-i
9-9i
15-9i

Answers

Answer:

9 - i.

Step-by-step explanation:

Add the real and imaginary parts separately:

12 - 5i + -3 + 4i

= 12 + -3 - 5i + 4i

= 9 - i.

PLS HELP ME WITH THIS QUESTION, IM LITERALLY SO FRUSTRATED PLSSSS, WILL MARK BRAINEST, AND PLS EXPLAIN HOW U GOT THE ANSWER PLS PLS PLS!!!!!!

Answers

Answer:

64:1

It doubles every 10 minutes, so it multiplies by two 6 times in an hour. 1x2x2x2x2x2x2 = 64

Which of the following shapes is not a parallelogram? Trapezoid Square Rectangle

Answers

Answer: Trapezoid

Step-by-step explanation: A parallelogram is a shape that has two pairs of parallel sides, two pairs of equal opposite angles, two pairs of equal and parallel sides. Hope this helps!! :))

Answer:it's trapezoid i got a 100%

Step-by-step explanation:

Find the slope of the line

Answers

Answer:

Slope = 3

Step-by-step explanation:

(2, 0)

(0, -6)

(-6-0)/(0-2) = -6/-2 = 3 = m

Mike would like to buy a shirt at a store which has special sale for the weekend. He wants to
find the total cost, with tax, before going to the counter. The price of the shirt is 5 dollars less
than the original price, and the tax rate is 8%. If f(x) represents the price of the shirt after the
discount is applied and g(x) represents the cost of the item with tax, write a composition of
functions to represent this scenario.

Answers

Answer:

let me know when theres an answer

Step-by-step explanation:

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