7x + 2y = -8
х- бу = -20
Is there a variable isolated?

Answers

Answer 1
No, you need to isolate one of the variables for it to be isolated. Either y or x.

Related Questions

Death Valley has an elevation of 282 feet below sea level. Townes Pass Summit has an elevation which is 4,956 greater than the elevation in Death Valley. Which integer represents the elevation of Townes Pass?

-5,238 feet
5,238 feet
-4,674 feet
4,674 feet

Answers

Answer:

Choice #4)  4674 feet above sea level

Step-by-step explanation:

4956-282=4674

plsssss help anyone!!!!!!!!!!!!!!!

Answers

Answer:

Well, I kind of know this but I don't wanna be wrong so here and the sides if it helps

1. 2x8x8

2.2x8x8

3. 8x8x10x10

Answer:

I think this is the answer

Section 1 area is 16, section 2 is 16, and section 3 is 80, the whole area of the trapezoid is 140

Hope it helps

Step-by-step explanation:

NEED HELP ASAP PLEASE AND THANK YOU:
Sherry draws a triangle. The length of side AC is 12 inches. The length of side AB¯ is 9 inches. She wants to draw a line XY that is parallel to BC. If she draws point X 3 inches from B, how far from point A does she need to draw point Y so that XY∥BC?

A. Point Y should be 10 inches from point A.

B. Point Y should be 4 inches from point A.

C. Point Y should be 4.5 inches from point A.

D. Point Y should be 8 inches from point A.

Answers

Answer:

D. Point Y should be 8 inches from point A

Step-by-step explanation:

A store sold 650 bicycles last year. This year the store sold 572 bicycles. What is the percent decrease in the number of bicycles sold from last year to this year? PLEASE HELP

Answers

Answer:

Decreased by 12%

Step-by-step explanation:

to find percentage change ---     new-original/original x 100

-78/650 x100 = -12%

Simplify. 28x^2/7x^6​

Answers

Answer:

4x^8

Step-by-step explanation:

hope this helps

If Gavin has 6 9/20th of time left to play videos, what is that mixed number written in minutes and seconds?

Answers

Answer:

[tex]387\ \text{minutes}[/tex]

Step-by-step explanation:

The time Gavin has is [tex]6\dfrac{9}{20}\ \text{hours}[/tex]

[tex]6\dfrac{9}{20}=\dfrac{20\times 6+9}{20}[/tex]

[tex]=\dfrac{129}{20}\ \text{hours}[/tex]

[tex]=6.45\ \text{hours}[/tex]

[tex]=6\times 60+0.45\times 60=360+27[/tex]

[tex]=387\ \text{minutes}[/tex]

The number of minutes is [tex]387\ \text{minutes}[/tex].

What are the constant(s) in the expression 6y+3x-2​

Answers

Answer:

2 is a contact but 6 and y are not because six is with y and 3 is with x

Step-by-step explanation:

PLEASE HELP I NEED THIS ASAP
which relation is not a function?

Answers

Answer:

im not completley sure but i think its B

Step-by-step explanation:

I think it’s d but if I’m wrong sorry

could you explain to me how to do this ? I do not understand at all

Answers

Answer:

I believe this is how you do it

Step-by-step explanation:

csc∅tan∅

(1/sin∅)(sin∅/cos∅)

(sin∅)/(sin∅cos∅)

1/(cos∅)

sec∅

csc²∅tan²∅sin∅

1/(sin²∅) * tan²∅ * sin∅

tan²∅/sin²∅ * sin∅

tan²∅/sin∅

Someone help me please

Answers

The second one! I took this recently :)

A painter is placing a ladder to reach the third story window, which is 14 feet above the ground and makes an angle with the ground at 70°


How far out from the base of the building does the ladder need to be positioned? Round your answer to the nearest tenth.

Answers

Answer:

4.8

Step-by-step explanation:

We are given the hypotunese or the slanted side which is the ladder length which is 14.

We are given an angle at the bottom which is 70 degrees.

We are asked to find the horizontal side which is adjacent to the angle at the bottom.

Since we have a hypotunese and a side adjacent to the angle, we are going to use the function cosine.

we use this formula

[tex] \cos(theta) = \frac{adj}{hypo} [/tex]

[tex] \cos(70) = \frac{x}{14} [/tex]

x=4.8

33.52 is 419% of what?

Answers

Answer:

140.4488

Step-by-step explanation:

Answer:419% of 33.52 = 140.4488

Step-by-step explanation: If you multiply .419 by 33.52 you get 140.4488

The Gonzalez family sold their home for $256,000. Their real estate agent earned 5.5% in commission of that sale. How much did the Gonzalez family get to keep from the sale?

Answers

The Gonzalez family kept 241,920 from the sale

John plants 36 tulip bulbs in his
garden. He has used half of the tulip
bulbs. How many did he have to
begin with

Answers

Answer:

72

Step-by-step explanation:

if he has half then its 36x2=72

32) In a triangle, the exterior angle is twice of each of the interior remote angles. The exterior angle is 1200. Find the measure of the three angles of the triangle.

Answers

Answer:

60 degrees each

Step-by-step explanation:

For the triangle, the sum of the interior angles is equal to the exterior

Let x and y be interior

Let z be the third angle

w be the exterior

w = x+y

120 = x+y

If the exterior angle is twice of each of the interior remote angles, then;

2x = 2y

x = y

120 = x+x

2x = 120

x = 60

Since x = y, y  = 60 degres

From the triangle, the third angle will be 180 - 120

z = 180-120

z = 60

The measures of the 3 angles are 60 degrees each

Help plz due today and don't worry abt my answers

Answers

this is for the one with the green background :) I corrected a few of the errors that collided with the answers for the 3 qns you didn’t know. Hope this helps!!!

If Sally purchased a set of books to sell at her store. She wants to mark up the books by 30%. Which equations would represent the price, p, she plans to sell the books for? (Select all that apply)

A
1.03p

B
1p + 0.3p

C
130p

D
1.3p

E
1p + 0.03p

Answers

Answer:

it would be D

Step-by-step explanation:

i need help here!!!! pls help pls pls pls !!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

go with a on the first one and c on

John has 44 quarters.
Jan has 100 dimes. Who
has more money?

Answers

John has more.

John has $11 while Jan has $10

6th grade math help me pleasee

Answers

Answer:

4.5

Step-by-step explanation:

i had that question before

Answer:

4.5

Step-by-step explanation:

π ≅ 3.14

4² < 23 < 5²

4 < √23 < 5

3.14 < √23 < 5

rewrite 3^-4 without negative exponents

a. 81
b. -81
c. 1/81
d. -1/81

Answers

Answer

1/81(C)

Step-by-step solution

(3)^4=81

if 3^-1=1/3

so, 3^-4=1/81(C)

BRAINLIEST Please help i'd appreciate it thanks, Have a nice day :)

Answers

Answer: 70 square centimeters.

Explanation: The area of a parallelogram is base times height.

Because the parallelograms are congruent, we can do 4*(3.5*5), which equals 70 square centimeters.

Answer plz
Test for my lil sis

Answers

Answer:

290mm

Step-by-step explanation:

Work out m and c for the line:
y−4x=−1

Answers

Step-by-step explanation:

y -4x = -1

y = 4x -1

then y = Mx + b

m = 4

b = -1

1. Malik has $30,000 in a savings account that earns 8% annually.
The interest is not compounded. How much total money will he
have in 2 years after collecting the interest?
a. How much simple interest did Malik receive?
$
b. How much total money does Malik have after the 2 years?
$

Answers

Step-by-step explanation:

I= prt

I= 30000×8%×2

I= 4800

total = 30000+4800

=34800

Which of the following is equal to 287 ÷ 7?
A.
(280 ÷ 7) + (7 ÷ 7)
B.
(280 ÷ 7) - (7 ÷ 7)
C.
(280 + 7) ÷ (7 + 7)
D.
(280 ÷ 7) + (280 ÷ 7)

Answers

Answer:

(280+7) ÷ (7+7)

Step-by-step explanation:

hopefully this helps ya

The equation that is equal to 287 ÷ 7 is (280 + 7) ÷ (7 + 7). The correct option is C.

What is equation?

An equation is a statement in mathematics that shows that two expressions are equal. It has two sides that are separated by an equal sign.

To find the value of 287 ÷ 7, we can use the following methods:

(280 ÷ 7) + (7 ÷ 7) = 40 + 1 = 41(280 ÷ 7) - (7 ÷ 7) = 40 - 1 = 39(280 + 7) ÷ (7 + 7) = 287 ÷ 14 = 20.5(280 ÷ 7) + (280 ÷ 7) = 40 + 40 = 80

We can simplify 287 ÷ 7 as follows:

287 ÷ 7 = 280 ÷ 7 + 7 ÷ 7

Note that 7 ÷ 7 simplifies to 1, so we have:

287 ÷ 7 = 280 ÷ 7 + 1

Therefore, the answer is C. (280 + 7) ÷ (7 + 7) = 287 ÷ 14 = 20.5.

For more details regarding equation, visit:

https://brainly.com/question/29657983

#SPJ2

can you help me please ​

Answers

tan = opp/adj

tan 20 = opp/10

x = 10(tan 20)

x = 3.63....

x = 3.6 cm

The answer is for x= 3.6

I need help ASAP!!!!!!

Answers

Answer:

m∠a = 60° ; m∠b = 30°

Step-by-step explanation:

They are complementary angles meaning they have a sum of 90°.

2x + x = 90

3x = 90

x = 30

2(30) = 60

Plz help me plzzzz I need it

Answers

Step-by-step explanation:

y= 30x + 180

there is no solution to represent Karen which is 4x + 100

A right triangle has side lengths that are consecutive interest and a perimeter of 12 feet what are the angles of the triangle

Answers

Answer:

Step-by-step explanation:

The sides are consecutive integers and the perimeter is 12 ft.

3 ft, 4 ft, 5 ft

One angle is 90°, one angle is arcsin(3/5) ≅ 36.9°

the remaining angle is 90-36.9 = 53.1°

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