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Oduvanchick [21]
4 years ago
14

Write an expression that can be used to multiply 6 x 198 mentally? please answer thanks!

Mathematics
2 answers:
maxonik [38]4 years ago
8 0
<span>Assuming you meant 6 x 198... Do a mental sum for 6 x 200 (1200) then subtract 6
</span>
valkas [14]4 years ago
3 0
-6 x 2 + 6 x 200. Since you want to find out 6 multiplied by 198 the easiest way (for me) would be to round it and then substract 12 since 200-198 is equal to 2 and 6 x 2 is equal to 12

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Brett has a $30 online gift voucher. He plans to buy as many books as he can. The cost of each book is $4. There is also a singl
S_A_V [24]

Answer:

Brett can afford 5 books.

Step-by-step explanation:

each book is $4 and an additional charge of $2 for shipping.

4 + 2 = 6

6 x 5 = 30

brett will spend exactly $30

8 0
3 years ago
If m∠ TUW = (5x + 3)°, m∠WUV=(10x-5)°, and m∠TUV=(17X-16)°, find each measure
cricket20 [7]

Answer: m∠ TUW =  38°

m∠WUV =  12°

m∠TUV =  103°

Step-by-step explanation:

Given: m∠ TUW = (5x + 3)°, m∠WUV=(10x-5)°, and m∠TUV=(17x-16)°

Since, m∠TUV = m∠ TUW  +  m∠WUV

So, 17X-16 = (5x + 3) + (10x-5)

⇒ 17X-16 = 5x + 3 + 10x-5   [open parenthesis]

⇒  17X-16 =5x +  10x +3 -5   [combine like trems]

⇒  17X-16 =15x -2

⇒   17X -15x = -2+16     [subtract 15x and add 16 on both sides]

⇒   2x = 14        

⇒  x= 7               [divide both sides by 2]

Now, m∠ TUW = (5(7) + 3)°=  38°

m∠WUV=(10(7)-5)° =  12°

m∠TUV=(17(7)-16)° =  103°

Hence,  m∠ TUW =  38°

m∠WUV =  12°

m∠TUV =  103°

6 0
4 years ago
Which is an equation in point-slope form for the line that passes through the points (−1,4) and (3,−4) ?
Kryger [21]

Answer:

D. y + 4 = 2(x - 3) is your answer.

Step-by-step explanation:

What you have to do first is find the slope.

4 and -4 are y's. -1 and 3 are x's.

-4 - 4 / -1 - 3 = 2.

Your slope is 2.

D. y + 4 = 2(x - 3) is your answer.

3 0
4 years ago
On a survey, 7 students reported how many minutes it takes them to travel to school. Here are their responses.
Svetradugi [14.3K]
To find the average, add them all up. 13 + 7 + 12 + 9 + 8 + 8 + 16 = 73
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Hope this helps :D
5 0
3 years ago
Arely has 4 fewer than twice as many music files as Valerie. They have a combined number of 86 music files. Which is the number
tankabanditka [31]

Answer:

56 music files

Step-by-step explanation:

From the above question:

Let the number of music files

Arely has = x

Valerie has = y

Arely has 4 fewer than twice as many music files as Valerie.

x = 2y - 4

They have a combined number of 86 music files.

x + y = 86

We substitute 2y - 4 for x in the above equation

2y - 4 + y = 86

3y - 4 = 86

3y = 86 + 4

3y = 90

Divide both sides by 3

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y = 30

Hence, Valerie has 30 music files.

The number of music files that Arely has is calculated as:

x = 2y - 4

x = 2(30) - 4

x = 60 - 4

x = 56

Arely has 56 music files

8 0
3 years ago
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