Mathematics Middle School

PLEASE HURRY!!
In the time that it takes Car 1 to travel 93 km, Car 2 travels 111 km. If the average speed of Car 2 is 12 km/hour faster than the speed of Car 1, then what is the speed of Car 2? Write and solve a proportion

Answers

Answer 1

Answer:

Car 1=64 km/h

Car 2=74 km/h

Explanation:

The formula for speed is

s=dt

For the first car, we know d

and plugging it into the formula gives us

s1=93t

We know the second car is

12 km/h

faster and the distance is

111 km

, so the formula in terms of the first car's speed would be

s1+12=111

t=s2

Now we can solve for

s1

in the second equation

s1=111t−12

Now we can set the two

s1

equal to each other and solve for

t93t=111t−1293=111−12t=18t=32hours

Now we can plug

t

into the first car equation to solve for the speed of it

s

1

=93 km32h=62 km/h

We know the second car is

12 km/h

faster, so

62 km/h+12 km/h=74 km/h

Step-by-step explanation:

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Answers

Answer:

1. C

2. B

Step-by-step explanation:

Answer:

I think it might be C and A but I'm not sure

Step-by-step explanation:

Henry’s baseball team needs new equipment each new baseball will cost 5.50$ And each new bat will cost 14.95 how much will the team spend if they buy 8 new baseballs and 2 new bats

Answers

Answer:

73.9

Step-by-step explanation:

multiply 5.50 by 8 and 14.95 by 2

EDIT: then add the products together

In ΔABC, point M is the midpoint of side AB and point D is the midpoint of segment MC. Prove that the area of ΔADC= the area of ΔBMD

Answers

A line segment from a vertex to the midpoint of the opposite side is a "median". A median divides the area of the triangle in half, as it divides the base in half without changing the altitude.
AAMC is half AABC. AADC is half AAMC, so is 1/4 of AABC. (By the formula for area of a triangle.)
ABMC is half AABC. ABMD is half ABMC, so is 1/4 of AABC. (By the formula for area of a triangle.)
Then, AADC = 1/4 AABC = ABMC, so AADC = ABMC by the transitive property of equality.

Tom is making a meatloaf with 5/9 pound of turkey and 5/6 pound of ground beef. Find the total number of pounds of meat?

Answers

Answer:

1 7/18

Step-by-step explanation:

17/18 Because the person above me answered right

Help me out please, And answer both, Thank you so much, and enjoy your day!

Answers

Answer:

The first exercise:

Is:

Right triangle.

And the second exercise:

Is:

B. II and III

A number line going from 0 to 4 in increments of 1.

There are 3 equals spaces between each number.

Find: 11/3 ÷ 2/3


The quotient is 5 and _____.

Answers

A number line going from 0 to 4 in increments of 1.

There are 3 equals spaces between each number.

Find: 11/3 ÷ 2/3

The quotient is 5 and _____.

Answer: 1/2

Step-by-step explanation:

I got this correct. <3

In the number line, 11/3 ÷ 2/3 is [tex]5\frac{1}{2}[/tex], The quotient is 5 and 1/2.

What is a number line?

A number line is a one-dimensional horizontal line where we can represent any real number. The origin of the number line is represented by zero left to it are all negative real numbers and right to it are all positive real numbers.

Given, A number line going from 0 to 4 in increments of 1 and there are 3 equal spaces between each number.

Therefore, 11/3 ÷ 2/3.

= 11/3 × 3/2.

= 11/2.

This can be written as [tex]5\frac{1}{2}[/tex].

So, The quotient is 5 and 1/2.

learn more about number line here :

https://brainly.com/question/13425491

#SPJ2

A parking lot is filled with cars and motorcycles. In all, there are 50 vehicles parked there. There is a total of 150 wheels on these vehicles. All cars have four wheels, and all motorcycles have two wheels. How many cars and how many motorcycles are in the parking lot?
Pls Help, 1st Brainliest

Answers

Answer:

75 motorcycles and  126 r 6 cars

Step-by-step explanation:

350 motorcycles and 650 cars

Cormac is making 31 phone calls each week as part of a fundraiser. Last week, he made 8 phone calls on weekdays. Which equation could be used to find x, the number of phone calls he made last week on weekend days? HELPP

Answers

Answer:   k-y

Step-by-step explanation:   Let's call the overall phone calls made every week 'k', and the phone calls made on the weekdays 'y'. Since 'x' is the number of phone calls made per weekend, y+x should equal k. But we don't know what x is so we need to make x the subject, which would be x = k-y.

e.g: k=31, y=8:

31-8= 23 phone calls made on the weekend.

what is 2+2. i need an answer now

Answers

Answer:

4

Step-by-step explanation:

plzzzz help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:64 or 576

Step-by-step explanation:

Please help me with this question

Answers

Answer:

The answer is C

Step-by-step explanation:

A) 64.25 - 7.71 = $56.54

B) 72.00 - 14.40 = $57.60

C) 68.75 - 12.38 = $56.38

D) 67.50 - 10.13 = $57.38

D is the answer !
(C, A, D,B)

Solve this linear equation using substitution. (Please show work!)

X + Y = 7

7x + y = 1

Answers

Answer:

y=1-7x

Step-by-step explanation:

7x+y=1

The first thing to do is get the y by its self. So u cancel the 7x out by-7x and bring it to the other side.

7x-7x = 0

Now all we have left is: y=1-7x

Hope it helps and is right.

The answer is 7=1-7x

6. How are slope and rate of change similar ? ( use complete sentence to explain )

Answers

Answer:

Finding Rate of Change. When finding the slope of real-world situations, it is often referred to as rate of change. “Rate of change” means the same as “slope.” If you are asked to find the rate of change, use the slope formula or make a slope triangle.

Step-by-step explanation:

The vertical change between two points is called the rise, and the horizontal change is called the run. The slope equals the rise divided by the run: . .... if coordinates of any two points of a line are given, then the rate of change is the ratio of the change in the y-coordinates to the change in the x-coordinates. (I have no clue if this is right.. )

What is 78.852 rounded to the nearest tenth?

Answers

Answer:

78.9

Step-by-step explanation:

sense the hundredth place is 5 or higher

Answer:

78.9

Step-by-step explanation:

The tenth is the first number after the decimal, so you would round up since the number next to it is a 5.

Helene was given the following enlargement of a triangle. A triangle has side lengths 2 centimeters, 7 centimeters, and 5 centimeters. The corresponding sides are A, B, and 30 centimeters. What are the lengths of sides A and B? A = 30 cm, B = 39 cm A = 30 cm, B = 48 cm A = 20 cm, B = 26 cm A = 20 cm, B = 33 cm

Answers

Answer: A=20cm, B=33cm

Step-by-step explanation:

Answer:

A=20cm, B=33cm

Step-by-step explanation:

Several items in a store are on sale. Complete the table with the correct prices.... btw pls dont ans this bc im trynna pass math so if u know it then pls help me

Answers

Answer:

the first is 12 ,the second is 91 ,third is 49 and fourth is 48

Step-by-step explanation:

im not sure about the last two 100% but im pretty sure :/

The first blank is $48. Discount (60x20)/100=12. 60-12=48.


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The third blank is $91.


The fourth blank is $12.

whats the point on the graph​

Answers

Answer:

(0,-2.5)

Step-by-step explanation:

Answer:

(0,-2.5)

Step-by-step explanation:

.....................

Use the interactive graph to produce an orange line identical to the blue line. Then change the value of b only. Which equation would be parallel to, and have no points in common with, y = 2(x + 3)? y = x + 6 y = –2x –6 y = 2x – 3 y = 2x + 6

Answers

Answer:

Equation c

Step-by-step explanation:

[tex]y = 2x - 3[/tex]

Answer:

C

Step-by-step explanation:did you know the answer is C omg who knew thats crazy its C haha. ITS C !!!!! OMG!!! WOW!!!! THATS CRAZY ITS C!!!!! MAN THATS CRAZY!!!!!!! man

0.23,19%,1/5 least to greatest
Please help!

Answers

Answer:

19% then 1/5 then .23

Step-by-step explanation:

Your answer would be 19%, 1/5, 0.23.

1/5 equals 20% of 1

0.23 equals 23% of 1

I need it done asapp

Answers

they can be arrange differently. yes they matter only in some cases like fractions, division, and subtraction.

Meredith borrows $12,560 and pays 2 percent simple interest each year for 4 years. What is the total amount of interest that she will pay on the loan?
$251.20
$1,004.80
$11,555.20
$13,564.80

Answers

Meredith borrow 12,560 so if you do some basic calculations, %2 of that is 251.20 dollars of interest per year

The total amount of interest she will pay for 4 years (251.20 x 4) is 1004.80 dollars for 4 years.

your welcome :)

2% of 12,560 would give you 251.2 and 251.2 X 4 = 1004.8 so your answer is B

Find the unit rate. Round to the nearest hundredth, if necessary. $340 for 14 ft2

Answers

Answer:

24.29

Step-by-step explanation:

Answer:

The answer would be 24.29

Whit usually drives 5/8 mile to work on the expressway. When the traffic is bad he takes another route that is 7/8 mile long. How much shorter is his usual route?

Answers

His first way is 2/8 shorter than his second way
His first route was actually 2/8 mile shorter than his second route!

Question 1 of 5
Which expression uses the associative property to make it easier to evaluate
8(1:)?
O A. 8(.5)
O B. 453)
O C. (8.5)
O D. (8-3)

Answers

Answer:

A

Step-by-step explanation:

true or false 0.625 = 62.5% = 5/8

Answers

Answer:

true

Step-by-step explanation:

Answer:

It true

Step-by-step explanation:

can someone help?? meeeee not thelp just whats the answer?

Answers

Answer: 120/3=40

Step-by-step explanation:

So, the answer is 40

What is 4.37 multiplied by 0.68?

Answers

Answer: 4.37 multiplied by 0.68 is 2.9716.

4.37×0.86=2.9716

Hope this helps!

The answer is 2.9716

Helpppp please?? tysm

Answers

Answer: d.

Step-by-step explanation:

Trapezoid so D!!!! Is the answer
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