use substitution to solve the system of equations.. PLEASE ANSWER AND EXPLAIN..asap

1. -5+y=-3
3x-8y=24

2. -3x-4y=2
x+2y=-2

Answer:

19 days

Step-by-step explanation:

I can't believe she's getting a discount! A Nintendo Switch usually costs $299.99 MSRP! She's getting basically $50 off!

Answer:

the second one

Step-by-step explanation:

Answer:

the second one i think sorry if im wrong

Step-by-step explanation:

Answer:

ok this was a good one so here

Step-by-step explanation:

time (seconds)

distance (meters)

speed (meters per second)

4 120 30

25 750 30

9 270 30

Answer: Answer for question 7: 9x -7 is less than or equal to 38, X=5

Step-by-step explanation: Since a number next to a variable means multiplying, we can guess that 9 x 5=45, and 45-7 is less than or equal to 38. There is EZ math for ya

Answer:

7.  x ≤ 5

8. x > 4

9. x < 5

10. x < -7

11.  x < 45

12. x ≥ -10

13. k ≤ 3

14. x < 21

15. x ≥ -50

16. w ≥ 16

17. x  ≥ -15

18. q > 4

Step-by-step explanation:

Answer:

I'm not sure, but is it 2?

Step-by-step explanation:

Answer:

so

Step-by-step explanation:

i would try C bc it has both 73 degrees and 83 degrees and i dont really know  what SAS is besides it means side angle side??? if its right can i have brainlest

9514 1404 393

Answer:

  x = 10

Step-by-step explanation:

The exterior angle is equal to the sum of the remote interior angles.

  (12x +12)° = 79° +(5x+3)°

  7x = 70 . . . . . . . . divide by °; subtract 12+5x; collect terms

  x = 10 . . . . . . . . divide by 7

Answer:

-10i

10i

Step-by-step explanation:

Answer:

Step-by-step explanation:

sqrt(-100) = sqrt(100) * sqrt(-1)

sqrt(-1) = i

Sqrt(100) = 10

sqrt(-100) = 10i

Answer:

THE ANSWER IS 45 thank me later!!!

Step-by-step explanation:

Answer:B

Step-by-step explanation:

Answer:

c)sas

Step-by-step explanation:

Answer:

Step-by-step explanation:

Properties of a kite;

1). A kite has one pair of equal angles.

2). A kite has two pairs of adjacent sides.

3). Diagonals of a kite intersect at 90°.

4). Kite has at least one diagonal that bisects the opposite angles.

It's given in the question,

m∠ABC = 70° and m∠ADC = 46°

By the property number -4,

m∠2 = m∠3 = [tex]\frac{70}{2}[/tex] = 35°

m∠8 = m∠9 = [tex]\frac{46}{2}[/tex] = 23°

By the property number - 3,

m∠4 = 90°

By the property of interior angles in a triangle,

m∠3 + m∠4 + m∠5 = 180°

35° + 90° + m∠5 = 180°

125° + m∠5 = 180°

m∠5 = 55°

Similarly, m∠1 + m∠2 + 90° = 180°

m∠1 + 35° + 90° = 180°

m∠1 = 55°

Now m∠6 + 90° + m∠8 = 180°

m∠6 + 90° + 23° = 180°

m∠6 = 180 - 113 = 67°

Therefore, m∠6 = m∠7 = 67°

The values of all 9 angles shown were found using the property of a kite they are:

∠1=55°

∠2=35°

∠3=35°

∠4=90°

∠5=55°

∠6=67°

∠7=67°

∠8=23°

∠9=23°

One pair of equal angles, two pairs of equal adjacent sides, diagonals intersect at a right angle.

∠1=∠6 because AB=AC

∠6=∠7 because AD=DC

∠2=∠3 because triangle ABC is a combination of two congruent triangles.

∠8=∠9 because triangle DAC is a combination of two congruent triangles.

∠4=90°diagonals intersecting at the right angle.

It is given that

∠2+∠3 = 70°

Since they are equal so ∠2=∠3=35

∠8+∠9 = 46°

Since they are equal so ∠8=∠9=23°

∠5 = 180-∠3-∠4 = 180-35-90=55°

Similarly, ∠1 = 55°

∠6+∠7 = 180-∠8-∠9 = 180-46 = 134°

Since they are equal

∠6=∠7 = 67°

Therefore, all 9 angles were calculated using property of a kite.

∠1=55°

∠2=35°

∠3=35°

∠4=90°

∠5=55°

∠6=67°

∠7=67°

∠8=23°

∠9=23°

To get more about kites refer to:

https://brainly.com/question/16424656

Answer:

H=Hyperbola

L=line

C=circle

P=Parabola

First letter is top one:

HL=0, 1, 2

LP=0, 1, 2

LC=0, 1, 2

LH=0, 1, 2

PP=0, 1, 2, INFINTELY MANY

PC=0, 1, 2,

PH=0, 1, 2, 3

CP=0, 1, 2

CC= 0, 1, 2, INFINITELY MANY

CH=0, 1, 2, 3, 4

HP=0, 1, 2, 3

HC=0, 1, 2, 3, 4

HH=0, 1, 2, 3, 4, infinitely many

Answer:

I dont know but example

Step-by-step explanation:

A cubic foot is a cube with a side length of one foot.

We know that, 1 foot = 12 inches.

So, 1 cubic foot is a cube with side length 12 inches.

You can use the formula for the volume of a prism, V=bwh , to convert cubic units.

Since 1 foot = 12 inches, replace b , w , and h with 12 .

V=(12)(12)(12)     =1,728

So, 1 cubic foot is equal to 1,728 cubic inches.

Answer: 450^3

Step-by-step explanation: To find the volume of something multiply the base and height. So just do 45x10. And don't forget to put ^3 at the end of your answer because you're finding volume.

Answer:

4L + 8H = 512 (First answer)

You can take 92 low resolution pictures (second answer)

Step-by-step explanation:

Let L represent the number of low resolution pictures you take and H the number of high resolution pictures you can take.

You only have 512 megabytes.

Therefore, the number of megabytes the low resolution pictures you take plus the amount of megabytes the high rsolution you take in total should be 512

Therefore your equation is:

4L + 8H = 512 (First answer)

You took 18 high resolution pictures, so substitute 18 for H

4L+8(18) = 512

4L+144=512

subtract 144 on both sides

4L=368

divide by 4

L= 92

You can take 92 low resolution pictures

Hope this helps!

Answer:

NO, I AINT SHOWIN NO WORK-

DO YOUR OWN WORK!!!!! GOSH!!!!

Step-by-step explanation:

Answer:

I am sorry i don't know it or i would give it to you

Step-by-step explanation:

Answer:

400 = 200 + 0.20x

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

the amount she gets paid is 200 and that will never change. the 20% commision will always change depending on her sales so we can mark that as x. so far we have 200+20x. We want 400 dollars and that will be the total. That being said, it is 400=200+20x

Answer:

x≤−13

Step-by-step explanation:

isolate the variable by dividing each side by factors that don't contain the variable

Answer:

30

Step-by-step explanation:

Answer:

The length of the rectangle is 17 yards and the width of the rectangle is 14 yards.

Explanation:

To find the perimeter of the rectangle, you had to add twice the length of the rectangle to twice the width of the rectangle since the shape of a rectangle is made up of two legs (each representing the rectangle's length) and two legs (each representing the rectangle's width.

The perimeter can be mathematically seen as p = 2l+2w, where p is the amount corresponding to the perimeter of the rectangle, l is the amount representing the length of the rectangle, and w is the quantity reflecting the width of the rectangle. This equation can be modified using the equation l = w+3, since it is given that the length is 3 yards longer than the width.

Therefore, the p = 2l+2w equation can be modified to solve for w using the given conditions and the equation defining l.

p = 2l+2w  

p = 2(w+3)+2w               [Substituting l = w+3]

p = 2w+6+2w

p = 4w+6

p-6 = 4w+6-6

p-6 = 4w

(p-6)/4 = 4w/4

w = (p-6)/4

w = (62-6)/4                  

w = 56/4

w = 14

Now the length of the rectangle can be determined using the equation l = w+3.

l = 14+3 = 17

Hope this helps Also Plz mark brainliest:)

Answer:13.6 units

Step-by-step explanation: its on edge

Answer:

13.6 or b

Step-by-step explanation:

Answer:

Step-by-step explanation:

4(1/4a) + 4b - 24

1/a+4b-24

Answer:

It should be D, For each there are 4 markers.

Step-by-step explanation:

Given: there are 100 markers and 25 students

So each student, there are 4 markers.

4 x 25 is 100

Therefore the answer is D.

Answer:

A

Step-by-step explanation:

2(3) + (3) = 9

3(3) - 2(3) = 3

Answer:

I need points

Step-by-step explanation:

hhhccchhxjcjc

Answer:

200 I think I'm not entirely sure

Answer:

200

Step-by-step explanation:

if one inch=40 miles, and we want to find 5 inches, we can solve 5*40, which equals 200