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Iteru [2.4K]
3 years ago
10

Ill give brainliest Triangle Sum Theorem CLASSWORK

Mathematics
2 answers:
olasank [31]3 years ago
8 0

Answer:

(14x + 1) + 90 + 61 = 180 \\ 14x + 152 = 180 \\ 14x = 28 \\  \boxed{x = 2}

<h3>2 is the right answer.</h3>

(4x + 3) + 55 + 70 = 180 \\ 4x + 128 = 180 \\ 4x = 52 \\  \boxed{x = 13}

<h3>13 is the right answer.</h3>

zepelin [54]3 years ago
7 0

Step-by-step explanation:

Sum of angles in a triangle = 180°.

Question 3:

We have 90° + 61° + (14x + 1)° = 180°.

=> 14x° + 152° = 180°

=> 14x° = 28°

=> x = 2.

Question 4:

We have 70° + 55° + (4x + 3)° = 180°.

=> 4x° + 128° = 180°

=> 4x° = 52°

=> x = 13.

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How to do equations with a variable on both sides x+3= -x - 5
ss7ja [257]
Explanation: 
When we have variables on both sides we look for the coefficient that is lower than the two and reverse the sign. 

Example: 

1x+ 4 = 2x+3 

We reverse 1x sign because it is lower so we will be subtracting

2x-1x = 1x

1x+3=4 

We would then solve for x.

<span> 

Let's begin to solve! </span>
Step 1:

You would look for the coefficient or variable that is less and reverse the sign. 

In this question the lower number is -x and so we would reverse the sign to add. 

x+x= 2

Step 2: 
We now have

2x+3 = -5

Step 3: 
We will subtract 3 to -5 to find X

-3+-5= -8

Step 4:
2x = -8

Divide both sides by two fo find x 

Our answer:

\boxed{x = -4}

-


Summary:

We first looked for the lower coefficient (in this case variable). We then flipped the sign and solved for x. 




7 0
3 years ago
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Please help!! dont answer if you dont know
Pavel [41]

Answer:

6/7

Step-by-step explanation:

4/7×3/2=6/7. ( by doing reciprocal and cancelling four by two)

5 0
3 years ago
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K-12 Algebra 2 20 points!!
kakasveta [241]

A is the correct answer

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You pull a Queen (any of 4 suits) out of 52-card deck. I pull a pair of grey socks from the 12 -pair pack. There are 3 pairs of
nignag [31]

Answer: The probability of pulling a Queen has a smaller chance of happening.

Step-by-step explanation: In a 52-card deck, you have 4 Queens altogether belonging to each of the four suits. If you pull a card at random out of a complete pack, the probability of picking a Queen would be as follows;

P(Q) = Number of required outcomes/Number of all possible outcomes

P(Q) = 4/52

P(Q) = 1/13

P(Q) = 0.07692 or 7.69%

Also in a 12-pair pack of socks, you have 3 pairs with the color grey. The probability of picking a pair of grey socks at random is given as follows;

P(G) = Number of required outcomes/Number of all possible outcomes

P(G) = 3/12

P(G) = 1/4

P(G) = 0.25 or 25%

Therefore the probability of pulling a Queen has a 7.69% chance of happening and thats a lower chance.

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3 years ago
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150 grams weigh more than 5 ounces
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