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3 years ago

(2+2) x 2 / 1

1 answer:

6 0

To solve this question you have to add the numbers in the pranithies 2 + 2 = 4 then you have to multiply this by 2 which is 8 divided by 1 is still 8 because if you divide any number by 1 the answer is the number you put in. Hope this helps :)

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At the school Halloween dance. 85% of the students were present. If there are 765 students at the dance then how many total stud

marishachu [46]

Answer:

900 students

Step-by-step explanation:

We have, 85% × x = 765 or, 85/100 × x = 765. Multiplying both sides by 100 and dividing both sides by 85, we have x = 765 × 100/85. So x = 900. If you are using a calculator, simply enter 765×100÷85, which will give you the answer.

3 0

3 years ago

There are twelve shirts in your closet, five blue and seven green. Four of the blue shirts and one of the green shirts fit well.

uranmaximum [27]

Answer:

P (blue or too big) = 11 / 12

Explanation:

A two way table permits to represent the situation clearly and find the answser is an easy way.

The two way table is that results from the given information is:

Initial information:

Blue Green Total

Fit well 4 1 ?

Too big ? ? ?

Total 5 7 12

Now by subtraction and addition you can fill the unknown fields:

Blue Green Total

Fit well 4 1 5

Too big 1 6 7

Total 5 7 12

Now, you can see that there are 5 blue and 7 too big shirts, but the total number of them is 5 + 7 - 1 (because one of the too big shirts is also blue).

Then, the number of shirts being blue or too big is 5 + 7 - 1 = 11.

And the probability is :

P(blue or too big) = number of blue or too big / total number of shirts

P (blue or too big) = 11 / 12 ← answer

You can also realize that there is only 1 green shirt that fits well, and that is the only option of not being blue of too big, so 1 /12 is the probability of not being blue or too big, and its complement (being blue or too big) is 1 - 1/12 = 11 / 12.

7 0

3 years ago

Help please. I'm stuck

jok3333 [9.3K]

Answer:

The numbers are 65, 67, and 69

Step-by-step explanation:

Hi there!

We need to find 3 consecutive odd integers.

Consecutive numbers are numbers that follow each other (ex. 1, 2, 3, 4)

We're given that 5 times the first number + 4 times the second + 3 times the third = 800

Let's make the first number x

Since the second number is consecutive to the first and odd, it will be x+2 (Why? Well, let's say x is 5. In that case, x+1=6, which is even. However, x+2=7)

Therefore, the third number is x+4 (once again, if x is 5, x+3=8, but x+4=9)

5 times the first number is 5x

4 times the second is 4(x+2)

3 times the third is 3(x+4)

And of course, that equals 800

As an equation, it'll be:

5x+4(x+2)+3(x+4)=800

open the parenthesis

5x+4x+8+3x+12=800

combine like terms

12x+20=800

Subtract 20 from both sides

12x=780

Divide by 12 on both sides

x=65

The first number is x, so the first number is 65

The second number is x+2, or 65+2=67

The third number is x+4, or 65+4=69

Hope this helps!

8 0

3 years ago

-3x - 8 = 10 Help. solve for X

Nata [24]

Answer:

x= -6

Step-by-step explanation:

8 0

4 years ago

Read 2 more answers

How can you find a function that has these roots?

EleoNora [17]

Answer:

The quadratic function x^2 - 5x + 6 =0

can be factored into (x -3) * (x-2)

And it would have roots of 3 and 2

So, if a cubic functions has roots of 2, 3 and 5 then its factors are

(x -2)* (x -3) * (x -5)

Multiply it out to get the equation.

Dunno if that was what you were looking for but i did what i can....

7 0

3 years ago