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Marrrta [24]
3 years ago
8

Find the measure of angle b

Mathematics
2 answers:
Zina [86]3 years ago
6 0

Answer:

127

Step-by-step explanation:

Alt. Interior andgles are congruent

torisob [31]3 years ago
4 0

Answer: 127°

Step-by-step explanation:

The given 127° angle and b are alternate interior angles, so by the AIA (Alternate Interior Angles) Theorem, the angles are congruent. Therefore, m∠b = 127°.

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5 tons of cement cost $900.00. What is the price per pound?
charle [14.2K]

Answer:

Cement costs vary from approximately $50 to $75 per ton or 2.5 to 3.75 cents per pound.

Step-by-step explanation:

7 0
3 years ago
a jewler buys a ring from an artisan for 85$. He sells the ring at his store at 135% increase in price. What is the retail price
ELEN [110]
<span>A jeweler buys a ring from an artisan for 85$. He sells the ring at his store at 135% increase in price. What is the retail price? PLEASE SHOW UR WORK!!!

1.35(</span><em>135%</em><span>) x  85( <em>the price it was bought for</em>)

= $114.75


</span>
4 0
3 years ago
Solve the system of equations<br>y = 4x+1<br>y=2+2x-2​
Natalija [7]

Answer:

x = -1/2 , y = -1

Step-by-step explanation:

Solve the following system:

{y = 4 x + 1 | (equation 1)

{y = 2 x | (equation 2)

Express the system in standard form:

{-(4 x) + y = 1 | (equation 1)

{-(2 x) + y = 0 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{-(4 x) + y = 1 | (equation 1)

{0 x+y/2 = (-1)/2 | (equation 2)

Multiply equation 2 by 2:

{-(4 x) + y = 1 | (equation 1)

{0 x+y = -1 | (equation 2)

Subtract equation 2 from equation 1:

{-(4 x)+0 y = 2 | (equation 1)

{0 x+y = -1 | (equation 2)

Divide equation 1 by -4:

{x+0 y = (-1)/2 | (equation 1)

{0 x+y = -1 | (equation 2)

Collect results:

Answer:  {x = -1/2 , y = -1

5 0
3 years ago
Wanda started walking along a path 27 seconds before Dave. Wanda walked at a constant rate of 3 feet per second. Dave walked alo
Advocard [28]

Answer:

Wanda and Dave will catch each other in 54 seconds after Dave starts walking.

Step-by-step explanation:

Let Wanda and Dave catch each other when x be the time after Dave starts walking and y be the distance covered by them

It is given that Wanda started walking along a path 27 seconds before Dave and the constant speed of Wanda is 3 feet per second.

speed=\frac{distance}{time}

3=\frac{y}{x+27}

y=3(x+27)

 y=3x+81                          .... (1)

The constant speed of Dave is 4.5 feet per second.

4.5=\frac{y}{x}

y=4.5x                                .... (2)

Equate equation (1) and (2).

3x+81=4.5x

81=1.5x

Divide both sides by 1.5.

\frac{81}{1.5}=x

54=x

Therefore, Wanda and Dave will catch each other in 54 seconds after Dave starts walking.

6 0
4 years ago
I need help with my final study guide
Citrus2011 [14]
21) Since all angles = 180,
180=66 + 79 + (43 + x)
Subtract (66 + 79) from both sides, you’d get
35= 43 + x
subtract 43 from both sides and x = -8

6 0
3 years ago
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