MATHEMATICS MIDDLE SCHOOL

Help me plzzzz...... .

Answers

Answer 1

Answer:

Answer:

x = $(-36)/(8)$ = -4.5

Step-by-step explanation:

WE are given with an equation and we have to solve it for the value of x

As the given equation is

$(-3)/(8)=(x)/(12)$

For this we have to use the rule of cross multiplication which states that

if we have two fractions such that

$(x)/(y)=(a)/(b)$

then by cross multiplication

b * x = a * y

so similarly for the given equation we have

$(-3)/(8)=(x)/(12)$

By cross multiplication

- 3 * 12 = 8 * x

multiplication gives

-36 = 8 x

Dividing both sides by 8

$(-36)/(8)=(8x)/(8)$

$(-36)/(8)=x$

So this is the answer in fraction in point form it would be

x = -4.5

Answer 2

Answer:

x = 4.5 so it is 3/-8 = 4.5/12

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if you flip three fair coins, what is the probability that the first two flips will both be heads, and the third flip will be either heads or tails?

Answers

Well, any coin has a 1/2 chance of being heads or tails, so for the first two flips to be heads it would be 1/2*1/2=1/4. Now for the third coin flip, I’m not entirely sure what it’s asking but for any one side it will always be 1/2 no matter what previous flips came out to be.
Hope this helps!

jonah wrote a 5 digit number on a piece of paper, the 4 is in the place that is ten times greater than the place where the 2 is

Answers

Your answer Will Be 245

The product of 4.7 and 6.5 equals 30.55 what is the product of 4.7 and 0.65 4.7 and 65

Answers

933.3025 I believe product is mutiplication

A triangle is inside a circle where the triangle's base is on the circle's diameter as shown.What is the area of the shaded region?

Use 3.14 for π .

Enter your answer as a decimal in the box.

Answers

Answer:

$A_(shaded)= 136.96 ft^(2)$

Step-by-step explanation:

We will find the shaded area if we subtract the area of the triangle from the area of the circle.

We know that the area of the circle is defined as

$A= \pi r^(2)$

Where $r$ is half the diameter, that is

$r=(16ft)/(2)=8ft$

The area of the circle is

$A= \pi r^(2)\nA= 3.14 (8ft)^(2) =200.96ft^(2)$

Now, we have to find the area of the triangle, which is defined as

$A_(\triangle) =(bh)/(2)$

Where $b$ is the base of 16 feet, and $h$ is the height of the triangle which is on the radius. So, we have $b=16ft$ and $h=8ft$ .

The area of the triangle is

$A_(\triangle) =(16ft(8ft))/(2)=64ft^(2)$

Now, the shaded is the difference as we said before, that is

$A_(shaded)=A-A_(\triangle)$

Replacing both areas, we have

$A_(shaded)=200.96 ft^(2) - 64ft^(2)= 136.96 ft^(2)$

Therefore, the shaded area is $A_(shaded)= 136.96 ft^(2)$

area of a circle=pi x r^2= 3.14 x 8^2(half of the radius)=3.14 x 64=200.96

area of triangle= 1/2 bh=1/2(16)(8)=1/2(128)=64

200.96-64=136.96 sq.ft

There are 126 different combinations of soups salads, and sandwiches available at a cafe. If there are more choices of sandwiches than choices of salads and fewer choices of soups than salads, how many of each type of food is available at a cafe?

Answers

combinations = #soup x #salad x #sandwich
126 = 2 x 7 x 9 = 3 x 6 x 7 = 2 x 3 x 21
there are more than one answer

I just need 1-6.please help

Answers

2. 1,3,9
3. 1,2,5,10
4. 1,2,3,4,6,12
5. 1,3,7,21
6. 1,31
The numbers in bold are prime. Number 6. is a prime number.

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