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3 years ago

8

in a classroom 1/6 of the students are wearing blue shirts, ans 2/3 are wearing white shirts. There ade 36 students in the class

. How many students are wearinf a shirt other than blue or white?

1 answer:

castortr0y [4]3 years ago

4 0

56 should be correct

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A plane can fly 1440 miles in the same time as it takes a car to go 400 miles. If the car travels 130 mph

patriot [66]

Answer:

The speed will be "144 mph".

Step-by-step explanation:

Let the speed of the plane be "x mph".

then,

The car's speed be "x-130 mph".

According to the question,

⇒ $\frac{1440}{x} =\frac{400}{x-130}$

By applying cross-multiplication, we get

⇒ $1440(x-130)=400x$

⇒ $1440x-187200=400x$

⇒ $1440x-140x=187200$

⇒ $1300x=187200$

⇒ $x=\frac{187200}{1300}$

⇒ $=144 \ mph$

8 0

3 years ago

It's moving day, and Lydia has packed her books into large and small boxes. The large boxes hold 35 books, and the small ones ho

Virty [35]

The number of large boxes is 4 and the number of small boxes is 14.

<u><em>Explanation</em></u>

Suppose, the number of large boxes is $x$ and the number of small boxes is $y$

As, the total number of boxes is 18, so the first equation is....

$x+y= 18 .......................................(1)$

The large boxes hold 35 books, and the small ones hold 20 books and the total number of books is 420. So the second equation will be .....

$35x+20y=420................................(2)$

Now solving equation (1) for $y$ itself , we will get....

$y= 18-x$

We will plug this $y= 18-x$ into equation (2). So.....

$35x+20(18-x)=420\\ \\ 35x+360-20x=420\\ \\ 15x= 420-360\\ \\ 15x=60\\ \\ x= \frac{60}{15}=4$

Now plugging this $x=4$ into the equation $y= 18-x$ .......

$y= 18-4= 14$

Thus, the number of large boxes is 4 and the number of small boxes is 14.

3 0

3 years ago

Pls pls pls pls helpppp

Anon25 [30]

Answer:

30

Step-by-step explanation:

21*10=210

210/7=30

x=30

3 0

3 years ago

Read 2 more answers

Mary baked 21 cookies on saturday and twice that many on sunday for a school fundraiser. 4 cookies fell on the ground and had to

nika2105 [10]

21+21= 42 cookies minus 4 = 38 cookies
38/3= 12.66(round down to 12)
She made 12 bags with 3 in Each which is 36, so 2 were left over

3 0

3 years ago

8x-2y=-26 ; 2x+5y=-23

inna [77]

Whats the question? There is no question.

4 0

3 years ago