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labwork [276]
3 years ago
6

M∠ABD=87° m∠ABC=9x−1° m∠CBD=6x+58 Encuentra m∠ABC

Mathematics
1 answer:
Softa [21]3 years ago
5 0

Answer: 9x - 1 = 9(2) - 1 = 17

Step-by-step explanation:

m∠ABD = m∠ABC + m∠CBD

87 = 9x -1 + 6x + 58

87 = 15x + 57

30 = 15x

2 = x

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Examine Carmen’s rail plans to identify the measure of ∠1. The streets represented by lines V and W are parallel.
barxatty [35]

<u>Question</u>:

Carmen is an engineer making plans to run a rail line, represented by the transversal t, through a city.

Examine Carmen’s rail plans to identify the measure of ∠1. The streets represented by lines V and W are parallel.

What is the m∠1?

25°

35°

145°

155°

The image of the plan is attached below.

<u>Given</u>:

The streets represented by lines V and W are parallel.

We need to determine the measure of ∠1.

<u>Measure of ∠1:</u>

When two parallel lines are crossed by the transversal line, the angles in the matching corners is called as corresponding angles. And the measure of the corresponding angles are always equal.

From the figure, the ∠1 and the other angle in the parallel line V with the measure of angle 155° are corresponding angles.

Thus, the measure of ∠1 is 155°

Hence, Option D is the correct answer.

0 0
3 years ago
Read 2 more answers
Richard’s store sells pineapples and grapefruits. Pineapples originally cost $5.15 apiece, and grapefruits originally cost $2.25
sveta [45]

Answer:

c. The price of grapefruits experienced a reduction 6.01 percentage points greater than the price of pineapples.

Step-by-step explanation:

The original price of Pineapples=$5.15

New price of Pineapples=$3.88

<u>Find change in price of Pineapples</u>

Change in price=original price- new price

=5.15-3.88=1.27

The price of Pineapple was reduced by $1.27

<u>% reduction in price</u>

(reduction value/original value) × 100

=\frac{1.27}{5.15} *100=24.66

=24.66%

The original price of grape fruits=$2.25

New price of grape fruits=$1.56

<u>Change in price of grape fruit</u>

Change in price= original price -new price

=2.25-1.56=0.69

<u>% reduction in price of grape fruits</u>

(reduction value/original value)×100

=\frac{0.69}{2.25} *100=30.67

=30.67%

<u>Answers</u>

The fruit that has its price reduced by a greater percentage is grape fruit

How many percentage points greater = 30.67%-24.66% = 6.01 points

5 0
3 years ago
Read 2 more answers
Please Help!
svet-max [94.6K]
First car is x
second car is y
25x+30y=1550
x+y=55
Multiply the second equation by -25 for elimination method to cancel out x
-25x-25y=-1375
Add the two equations
5y=175
y=35
Plug this value into the second equation
x+35=55
x=20

Final answers:
First car=20 gallons
Second car=35 gallons
6 0
3 years ago
Which system of equations is represented in the graph?
joja [24]

Answer:d

Step-by-step explanation:

grugsfhijgefgjbv ya nij

3 0
3 years ago
6x^2+9x+3 factor trinomial
qwelly [4]

Answer:

(x+1) ( x+(1/2))

Step-by-step explanation:

6x² +9x +3  , divide all terms by 6 to have the first term with coefficient 1

x² + (9/6)x + (3/6) , simplify the fractions

x² + (3/2)x + (1/2)

To get x² the first term we should have

(x.....)(x.....)

To get the last term (1/2) we should have

(x...1)(x...(1/2))

To get the middle term (3/2)x we should have

+1*x +(1/2)  x = (2/2)x +(1/2)x = (3/2)x

(x+1) ( x+(1/2))

6 0
2 years ago
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