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3 years ago

2.5 times .76 show the work

Mathematics

1 answer:

Viefleur [7K]3 years ago

8 0

2.5 times .76 show the work

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Trisha and Byron are washing and vacuuming cars to raise money for a class trip. Trisha raised $38 washington 5 cars and vacuumi

ANEK [815]

Answer:

They charged $6 for washing and $2 for vacuuming the car.

Step-by-step explanation:

Let the charge of washing a car be 'x'.

And also let the charge of vacuuming a car be 'y'.

Now according to question, Trisha raised $38 washing 5 cars and vacuuming 4 cars.

So framing the above sentence in equation form, we get;

$5x+4y=38\ \ \ \ \ equation\ 1$

Again according to question, Byron raises $28 by washing 4 cars and vacuuming 2 cars.

So framing the above sentence in equation form, we get;

$4x+2y=28\ \ \ \ \ equation\2$

Now multiplying equation 2 by '2', we get;

$2(4x+2y)=28\times2\\\\8x+4y=56\ \ \ \ equation\ 3$

Now we subtract equation 1 from equation 3 and get;

$(8x+4y)-(5x+4y)=56-38\\\\8x+4y-5x-4y=18\\\\3x=18\\\\x=\frac{18}{3}=6$

Now substituting the value of 'x' in equation 1, we get;

$5x+4y=38\\\\5\times6+4y=38\\\\30+4y=38\\\\4y=38-30=8\\\\y=\frac{8}{4}=2$

Hence They charged $6 for washing and $2 for vacuuming the car.

8 0

3 years ago

50 Points, 5 stars, and Brainliest Answer for the BEST Answers! Your answers MUST be correct, and you must answer them ALL!

devlian [24]

#1:Proportional Medians Theorem

#2:BD/FH = CB/GF

#3: 24/16 27/x

So the first ratio is 3/2 because both are divisible by 8. the ratio stays 3/2. 3*9=27. so 2*9=18

x=18

#4: x = 8.5

#5: x = 68

Hope this helps!!

6 0

3 years ago

43 ×56 show how you get it

tankabanditka [31]

Answer:

2408

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

3n - 5p + 2n = 10p, solve for n

Alex17521 [72]

Combine (subtract) 3n and 2n to get 1n or n. Then you have n -5n =10n add 5n to 10n to get 15n. divide the 15 from n and your answer is n=15

4 0

3 years ago

Rebecca wants to put 544 pennies in a coin collection book. the blue book fits 9 pennies per page. the red book fits 7 pennies p

natali 33 [55]

If she uses the blue book then she will need,

544/9 ≈ 61 pages

If she uses the red book the she will need,

544/7 ≈ 78 pages

So she will need 17 more pages if she uses the red book.

Hope this helps :)

6 0

4 years ago