All categories

2 years ago

FIND X AND Y. GIVING BRAINLIEST AND 100 POINTS

Mathematics

2 answers:

aksik [14]2 years ago

6 0

Answer:

here u can look

Mark as brainlist

Step-by-step explanation:

X + y = 120(being alternate angle)

or,X=120-y

then

2x-y=120

or,2(120-y) - y= 120

240-2y-y=120

y=240-120

y= 120

again,

X=120-y

= 120-120

hence,

X= 0

y= 120

Lunna [17]2 years ago

4 0

Answer:

x=0 , y = 120

Step-by-step explanation:

x+y = 120°

x = 120 - y ---------(1)

2x-y= 120°----------(2)

substitute x = 120-y in (2)

»» 2(120-y)-y = 120

240-2y-y =120

240-y = 120

y = 240 -120

= 120

substitute y = 120 in (1)

x= 120-120

= 0

You might be interested in

Tickets to a school play are $4.50 for an adult and $3.00 for a student. If 300 tickets are sold and $1087.50 collected, how man

Kryger [21]

Answer:

<h2>125 tickets for an adult</h2><h2>and 175 tickets for a student</h2>

Step-by-step explanation:

$a-\text{number of the tickets for an adult}\\s-\text{number of the tickets for a student}\\\\(1)\qquad a+s=300\\(2)\qquad4.5a+3s=1087.5\\------------\\(1)\\a+s=300\qquad\text{subtstitute}\ s\ \text{from both sides}\\a=300-s\\\\\text{Put it to (2):}\\\\4.5(300-s)+3s=1087.5\qquad\text{use distributive property}\\\\(4.5)(300)+(4.5)(-s)+3s=1087.5\\\\1350-4.5s+3s=1087.5\qquad\text{subtract 1350 from both sides}\\\\-1.5s=-262.5\qquad\text{divide both sides by (-1.5)}\\\\\boxed{s=175}$

$\text{Put the value of}\ s\ \text{to (1):}\\\\a=300-175\\\\\boxed{a=125}$

3 0

2 years ago

In which quadrant the values of x and y both negative.

HACTEHA [7]

Answer:

The Answer should be Quadrant III

Step-by-step explanation:

Hope this helped!

4 0

2 years ago

Nina earns $15 for each yard she mowes. she wants to buy a dress that coasts $109. how many yards will she need to mow to earn m

xxTIMURxx [149]

she will need to mow 8 yards because 109 divided by 15 equals 7.2 but she cant just mow 7.2 yards so you round up to 8 yards

8 0

2 years ago

The population of a particular country was 26 million in 1981; in 1990, it was 31 million. the exponential growth function descr

yuradex [85]

Just use syblol it is verygood for varible form

5 0

2 years ago

What weight of dry substance is in 150g of a 3% substance solution? What weight of an 8% solution can we have with the same weig

Pavlova-9 [17]

The answers are: 4.5 g and 56.25 g respectively.

Since the first type of measurement in this question is weight or mass, I'll suppose that the percentage concentration is % mass/mass. For that type of concentration measurement, just multiply the percentage by the total mass to get the mass of the wanted material.
So 150 g * 3% = 150 g * 0.03 = 4.5g

For the 8% solution with the same amount of dry substance, use the ratio of percentages, multiplied by the mass of the first solution to get the wanted amount of new solution:
3/8 * 150 g = 56.35 g

5 0

2 years ago