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Leto [7]
2 years ago
14

I need help with my math plz!!!

Mathematics
1 answer:
kvv77 [185]2 years ago
5 0
I think you add the sides
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Solve the system using substitution method <br> 3x+y=6<br> 2x-4y=10
Andreyy89
\left\{\begin{array}{ccc}3x+y=6&|-3x\\2x-4y=10\end{array}\right\\\\\left\{\begin{array}{ccc}y=6-3x\\2x-4y=10\end{array}\right\\\\substitute\ y=6-3x\ to\ the\ second\ equation\\\\2x-4(6-3x)=10\\\\2x-4\cdot6-4\cdot(-3x)=10\\\\2x-24+12x=10\\\\14x-24=10\ \ \ |+24\\\\14x=34\ \ \ \ |:14\\\\x=\dfrac{34}{14}\to x=\dfrac{17}{7}\\\\substitute\ the\ value\ of\ x\ to\ first\ equation\\\\y=6-3\cdot\dfrac{17}{7}=6-\dfrac{51}{7}=\dfrac{42}{7}-\dfrac{51}{7}=-\dfrac{9}{7}

\boxed{\left\{\begin{array}{ccc}x=\dfrac{17}{7}\\\\y=-\dfrac{9}{7}\end{array}\right}
5 0
2 years ago
Read 2 more answers
Mr.Baker is making a box using all of a 48-inch strip of oak. the box will be 14 inches wide. how long will the box be?
blsea [12.9K]

The length of the box made by Mr. Baker is 10-inch

Mr. Baker has strip of 48- inch long  oak, by this strip he is making the rectangle box of width 14-inch.

<h3>What is a rectangle?</h3>

The rectangle is 4 sided geometric shapes whose opposites are equal in lengths and all angles are about 90°.

As Mr. Baker has a strip that is 48-inch long and he made a rectangle box with it.

The width of the  box = 14 inches
now the length of the box = (total length of the strip - 2* width of the box)/2
⇒ length of the box = (48 - 2*14)/2
⇒ length of the box = 10 inches

Thus the Mr. Baker made the box which is 10 inches long.

learn more about rectangles here:
brainly.com/question/15019502

#SPJ1

7 0
2 years ago
The city carnival is holding a raffle. Every raffle ticket purchased will go into a large bin. At the end of the day, one ticket
rodikova [14]

Answer:

D 1/25

Step-by-step explanation:

6+8= 14

14/350 = 0.04

1/25= 0.04

3 0
2 years ago
Read 2 more answers
Sam scored 43, 48, and 42 points on three tests. How many points should he get on the fourth test to get an average score of 50?
tatiyna

So we know that an average is the sum of the scores divided by the number of scores that were added together. In this case we are going to be dealing with 4 tests. So let's say x is the score for our fourth test. We can create this equation:

\frac{x+43+48+42}{4}=50

So then we need to simplify the top:

\frac{x+133}{4}=50

Then multiply by 4 on both sides to get rid of the denominator:

x+133=200

Then solve for x:

x=67

So now we know that Sam needs to score a 67 on the fourth test to have an average score of 50.

6 0
3 years ago
Read 2 more answers
For the right triangle shown, the lengths of two sides are given. Find the third side. Leave your answer in simplified, radical
KATRIN_1 [288]

The Pythagorean theorem tells you

... a² + b² = c²

so

... a² = c² - b² = 16² - 9² = 256-81 = 175

... a = √175 = √(25·7)

... a = 5√7

4 0
3 years ago
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