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3 years ago

Y=-4x-5 and y=-4x+1 Many solitions, one solution, or no solution

1 answer:

8 0

There will be no solutions because the lines have the same slope (-4) meaning they are parallel to each other and will not cross.

Hope this helps!!

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Callie and Madison went to buy concert tickets for themselves and their five friends. The

nika2105 [10]

Answer:

They bought 0 ticket of closest section and 7 tickets of other section

Step-by-step explanation:

- Callie and Madison went to buy concert tickets for themselves and

their five friends

- That mean they are 7

- Tickets for the closest section were $45 each

- Tickets for other section were $30 each

- They ended up spending a total of $210

- Assume that they buy x tickets for closest section and y tickets for

the other section

∵ They want 7 tickets

∴ x + y = 7 ⇒ (1)

∵ The cost of the closest section ticket was $45

∵ The cost of the other section ticket was $30

∵ They spent $210 on them

∴ 45x + 30y = 210

- All terms have common factor 15, then divide them by 15

∴ 3x + 2y = 14 ⇒ (2)

* Now we have a system of equations to solve

- Multiply equation (1) by -2 to eliminate y

∴ -2x - 2y = -14 ⇒ (3)

- Add equations (2) and (3)

∴ x = 0

- substitute the value of x in equation (1) to find y

∴ 0 + y = 7

∴ y = 7

∵ x represents the number of tickets of the closest section and y

represents the number of tickets in the other section

∴ They bought 0 ticket of closest section and 7 tickets of other

section

5 0

3 years ago

PLS HELP ME ITS DUE AT 12 AM I WILL GIVE THAT BRAINLY THING

Eduardwww [97]

9514 1404 393

Answer:

1. HA is equivalent to AAS when the triangle is a right triangle.

2. AM = BM, so the triangles are congruent by HL. CPCTC

3. The triangles are congruent by HL. CPCTC

Step-by-step explanation:

1. The acute angle of the triangle together with the right angle comprise two angles of the triangle. When two corresponding angles and a corresponding side (the side opposite the right angle) are congruent, the right triangles are congruent by the AAS theorem. (This can be referred to as the HA theorem.)

2. CM = DM; MA = MB; ∠A = ∠C = 90°, so all of the requirements for the HL theorem are met. ΔCMA ≅ ΔDMB, so AC ≅ BD by CPCTC.

3. TS = TV, TR = TR, ∠S = ∠V = 90°, so all requirements for the HL theorem are met. ΔTSR ≅ ΔTVR, so RS ≅ RV by CPCTC.

4 0

3 years ago

Mr. william phisics class lasts 7/8 of an hour, 3/10 is used on arming up . How many minutes do they take to warm up..NOT FRACTI

pychu [463]

7/8
3/10 of 7/8 means 3/10 times 7/8=21/80

1hour=60mins
60 times 21/80=1260/80=15.75

answer is 15.75 mins

5 0

3 years ago

WILL MARK BRAINILESTWhich statements are true about the solution of 15 greater-than-or-equal-to 22 + x? Select three options.

shutvik [7]

Answer:

Statements 2, 4, and 5

Step-by-step explanation:

15≥22+x

okay so that's

22+x≤15

and that is

x≤-7

the graph would not be a closed circle, it is a vertical line.

this means your 3 correct statements would be:

x less-than-or-equal-to negative 7,

–6 is part of the solution.

–7 is part of the solution.

the last two are true based on the inequality.

7 0

3 years ago

In woodshop class, you must cut several pieces of wood to within 3/16 inch of the teacher's specifications. Let (s-x) represent

PIT_PIT [208]

Answer:

(a) |s - x| ≤ 3/16

(b) 4 15/16 ≤ x ≤ 5 5/16

Step-by-step explanation:

(a) The absolute value of the difference from spec must be no greater than than the allowed tolerance:

|s - x| ≤ 3/16

(b) Put 5 1/8 for s in the above equation and solve.

|5 1/8 - x| ≤ 3/16

-3/16 ≤ 5 1/8 -x ≤ 3/16

3/16 ≥ x -5 1/8 ≥ -3/16 . . . . multiply by -1 to get positive x

5 5/16 ≥ x ≥ 4 15/16 . . . . . . add 5 1/8

Pieces may be between 4 15/16 and 5 5/16 inches in length.

4 0

3 years ago