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lisov135 [29]
3 years ago
5

Which of the following represents the most accurate estimation of 65+77

Mathematics
1 answer:
abruzzese [7]3 years ago
7 0
150 because 65 rounded to the nerast ten is 70 and and 77 rounded to the nearest ten is 80 and 80+70=150
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In ΔVWX, \text{m}\angle V = (4x+3)^{\circ}m∠V=(4x+3) ∘ , \text{m}\angle W = (x+7)^{\circ}m∠W=(x+7) ∘ , and \text{m}\angle X = (5
NemiM [27]

Answer:

The value of x is 17

Step-by-step explanation:

The sum of the angles in a triangles is 180°

From the question:

In ΔVWX,

m∠V=(4x+3) ∘

m∠W=(x+7) ∘

m∠X=(5x+0) ∘ .

Hence:

m∠V + m∠W + m∠V = 180°

4x + 3 + x + 7 + 5x + 0 = 180°

Collect like terms

4x + x + 5x + 3 + 7 + 0 = 180°

10x + 10 = 180°

Subtract 10 from both sides

10x + 10 - 10 = 180° - 10

10x = 170

Divide both sides by 10

10x/10 = 170/10

x = 17

The value of x is 17

4 0
3 years ago
Solve the equation n/10 + 5 =9. The solution is (Type the value of n.)​
natita [175]

Answer:

40

Step-by-step explanation:

n/10+5=9

n/10=9-5

n/10=4

n=4*10

n=40

3 0
2 years ago
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irga5000 [103]
4:3 for the ratio and for the word ratio you can say that there is 4 squares and 3 triangles
6 0
3 years ago
Find the sum:<br> 6/x-4+5/x<br> О 11/2x-4<br> O 11x-24/x^2-4x <br> O 11x-20/x^2-4x
JulijaS [17]

Answer:

C.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the product of the 2 solutions of the equation x^2+3x-21=0
Advocard [28]
X²+3x-21=0

1) we solve this square equation:
x=[-3⁺₋√(9+84)] / 2=(-3⁺₋√93)/2
We have two solutions:
x₁=(-3-√93)/2
x₂=(-3+√93)/2

2) we compute the product of the 2 solutions found.
[(-3-√93)/2][(-3+√93)/2] =(-3-√93)(-3+√93) / 4=
=(9-93)/4=-84/4=-21

Answer: the product of the 2 solutions of this equation is -21
3 0
3 years ago
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