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3 years ago

Plz help I really need this ............

Mathematics

1 answer:

tatiyna3 years ago

4 0

Answer:

500 students

Step-by-step explanation:

subtract all of the smaller numbers from the big numbers for each school.

school A = +530

school B = +480

school C = +490

530 + 480 + 490 = 1500

1500 ÷ 3 = 500

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SashulF [63]

360 boys to 240 girls

7 0

3 years ago

Ms. Gartland bought x number of shirts for the new members of her chorus. The cost for the x number of shirts, including $3.99 s

choli [55]

Hello

77.49 - 3.99 = 12.25 * x

73.5 = 12.25x
(Divide both sides by 12.25)
6 = x
So, she bought six shirts

Have a nice day

8 0

3 years ago

Elijah has $0.55 worth of pennies and nickels. He has twice as many nickels as pennies. Determine the number of pennies and the

maxonik [38]

Answer:

The number of nickels are 10 and number of pennies are 5.

Step-by-step explanation:

Given:

Elijah has $0.55 worth of pennies and nickels.

He has twice as many nickels as pennies.

Now, to determine the number of pennies and the number of nickels that Elijah has.

Let the number of nickels be $x.$

And the number of pennies be $y.$

As given that he has twice as many nickels as pennies.

$2y=x$

$x=2y.$ ......(1)

The total worth of worth of pennies and nickels = $0.55.

As, the value of a penny = $0.01.

And the value of a nickel = $0.05.

Now, to get the number of pennies and the number of nickels that Elijah has:

$0.05(x)+0.01(y)=0.55$

Putting the value of $x$ from equation (1):

$0.05(2y)+0.01(y)=0.55$

$0.10y+0.01y=0.55$

$0.11y=0.55$

Dividing both sides by 0.11 we get:

$y=5.$

The number of pennies = 5.

Now, putting the value of $y$ in equation ( 1 ) we get:

$x=2y\\x=2\times 5\\x=10.$

The number of nickels = 10.

Therefore, the number of nickels are 10 and number of pennies are 5.

3 0

4 years ago

How many times can 95 go into 96

Tanzania [10]

Answer:24 times

Step-by-step explanation:Hi there!

First of all, division is the opposite of multiplication. So if I

divide 72 by 3 I should get 24, since 3*24 = 72.

(You might notice that our division looks sort of like the

multiplication:

X 3

___

----

just in a different order.)

OK, back to long division.

The process of long division goes sort of like this:

1. Write the problem

2. Make a guess of what the answer will be

3. Check your guess, fix it if you need to

4. "Bring down"

5. Repeat steps 2-4 until you're out of digits

So for 72 divided by three, the process would go like this:

1. Write the problem

----

3|72

That means 72 divided by 3, also called 3 into 72, etc.

2. Make a guess of what the answer is.

Let's cover up the 2 in 72 for a minute: (This lets us ignore the place

value, etc.)

----

3|7?

Now let's ask: How many times does 3 go into 7?

You can make whatever guess you want. But since we have a good idea of

what the answer should be, let's guess 2.

Now we write the 2 above the 7 like this:

----

3|7?

Now, to check that we're right, we need to subtract 2 3's from 7.

We do this by multiplying 2X3 (to get 6) and then writing:

----

3| 7?

-6

We need the 2 from 72 again, so let's write it in again. In fact, we're

going to "bring it down" next to the 1 to make 12. Then we'll guess how

many times 3 goes into 12, and so on.

Anyway:

----

3| 72

-6 | <---that's supposed to be an arrow reminding you that we're

__\ / bringing down the 2 to make 12

Ok. So, how many times does 3 go into 12? Let's guess 4 (sorry, I'm

cheating since I know the answer already!)

----

3| 72

-6

Now let's multiply 3 X 4. Wow! We get 12. If we subtract 12-12

----

3| 72

-6

- 12

---

Now, we can check to make sure that 3 X 24 really does equal 72, and

we're done.

4 0

3 years ago

When I have more than two samples of proportions, I can use ANOVA to test for significant differences. a. True b. False

Cerrena [4.2K]

False I took the quiz and it was right

5 0

3 years ago