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spayn [35]
3 years ago
10

Solve for x. 2 3 (x + 7) = 10

Mathematics
1 answer:
matrenka [14]3 years ago
7 0
<h2>Answer:</h2>

\boxed{x=-\frac{151}{23}}

<h2>Step-by-step explanation:</h2>

This is an equation whose target variable is x. Recall that in mathematics, an equation is a statement that involves the equality of two expression. In this case, we have the following equation:

23(x+7)=10

Applying distributive property:

23x+161=10

Subtracting 161 from both sides:

23x+161-161=10-161 \\ \\ 23x=-151

Dividing both sides by 23:

\boxed{x=-\frac{151}{23}}

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Which congruence theorem can be used to prove △WXZ ≅ △YZX?
Svetach [21]
Hi there!
The congruency theorem that proves these two triangles congruent is AAS. This is because both triangles have two congruent angles and the side comes from the side that can be proved congruent in both triangles by the reflexive property.
Hope this helps!! :)If there's anything else that I can help you with, please let me know!

5 0
3 years ago
Read 2 more answers
A plane can fly 1440 miles in the same time as it takes a car to go 400 miles. If the car travels 130 mph
patriot [66]

Answer:

The speed will be "144 mph".

Step-by-step explanation:

Let the speed of the plane be "x mph".

then,

The car's speed be "x-130 mph".

According to the question,

⇒ \frac{1440}{x} =\frac{400}{x-130}

By applying cross-multiplication, we get

⇒    1440(x-130)=400x

⇒ 1440x-187200=400x

⇒    1440x-140x=187200

⇒                1300x=187200

⇒                       x=\frac{187200}{1300}

⇒                          =144 \ mph

8 0
3 years ago
You earn $36 in 8 hours , how much would you earn in 17 hours . Explain
quester [9]
I hope this helps you

5 0
3 years ago
Read 2 more answers
Pls Answer..........................................
Vlad1618 [11]

Answer:

C= 27

G= 37

J=57

Z= 1

Step-by-step explanation:

These are the degrees because of the Triangle Sum Theorem which states that The sum of the measures of the angles in a triangle is 180°. So angle C for example is 27 because angle A is 53 and angle B is 100 add both of those and you get 153 so our equation would be 153+c=180, c being the angle, so then to solve this you do do 180-153 and that equals 27 so therefore, 153+27=180. This process applys to all the other angles as well ^w^

3 0
3 years ago
What is the solution to x = square root 3x + 10?
sdas [7]

Answer:

x = 5

Step-by-step explanation:

Given

x = \sqrt{3x+10} ( square both sides )

x² = 3x + 10 ( subtract 3x + 10 from both sides )

x² - 3x - 10 = 0 ← in standard form

(x - 5)(x + 2) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

x + 2 = 0 ⇒ x = - 2

As a check

Substitute these values into the equation and if both sides are equal then they are solutions.

x = 5

right side = \sqrt{15+10} = \sqrt{25} = 5 = left side ← solution

x = - 2

right side = \sqrt{-6+10} = \sqrt{4} = 2 ≠ - 2 ← not a solution

Thus x = 5 is the solution to the equation

6 0
3 years ago
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