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SCORPION-xisa [38]
3 years ago
14

Don't have time for any bs please answer the question or don't do it at all

Mathematics
1 answer:
Serhud [2]3 years ago
5 0

Answer:

1.) (11,  -7/3),   2.) No solution.  3.)  (1, 3)

Step-by-step explanation:

1.)

2x + 3y = 15

x - 3y = 18

Solve...use elimination method

2x + x + 3y - 3y = 15 + 18

3x = 33

x =11

11 - 3y = 18

-3y = 7

y = -7/3

(11,  -7/3)

---------------------------------------

2.) y = 4x + 4

y = 4x - 4

Use substitution.

4x + 4 = 4x - 4

4 = -4  FALSE  NO Solution

3.) y = 5- 2x

4x + 3y = 13

Can use elimination method

2y = 10 - 4x

add it to 4x + 3y = 13

10 + 3y = 2y + 13

y = 3

3 = 5 - 2x

x = 1

(1, 3)

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(951² - 159²)÷(7539²-357²) x (258²-852²)
Marysya12 [62]

Answer:

(879,120)÷(56709072) ×(-659340)=-10221.274

Step-by-step explanation:

we use bedmas rules when it comes to long solving questions.

5 0
2 years ago
A model ship is built to a scale of 1 cm : 5m. The length of the model is 25 cm. What is the length of the actual ship?
Anestetic [448]

Answer:

<em>The length of the actual ship is 125 meters.</em>

Step-by-step explanation:

<u>Scaling</u>

Objects can be represented in a reduced or augmented size by using scaling which is basically multiplying or dividing by a constant factor. We use scaling for example, when representing geographic locations on a map.

A model ship is built to a scale of 1 cm: 5 m. This means that each centimeter of the model represents an actual length of 5 m.

The length of the model is 25 cm, thus the real ship has a length of 25*5 = 125 m.

The length of the actual ship is 125 meters.

7 0
3 years ago
5(9-x)/3 +1 less than 11<br>find x​
Lunna [17]

Answer:

x > \frac{1}{5}

Step-by-step explanation:

\frac{5(9-x)}{3+1}

Add 3 and 1 to get 4.

\frac{5(9-x)}{4}

Use the distributive property to multiply 5 by 9−x.

\frac{45-5x}{4}

Subtract  45/5 from both sides.

-\frac{5}{4}x

Since 44/4 and 45/4 have the same denominator, subtract them by subtracting their numerators.

-\frac{5}{4} x

Multiply both sides by -4/5, the reciprocal of -5/4. Since -5/4 is negative, the inequality direction is changed.

x>-\frac{1}{4} (-\frac{4}{5} )

Multiply -1/4 times -4/5 by multiplying numerator times numerator and denominator times denominator.

x>\frac{-(-4)}{4 x 5}

x>\frac{1}{5}

5 0
3 years ago
Kyle is using 4 pounds of peaches to make pies. How many ounces of peaches is Kyle using for the pies? (1 pound = 16 ounces)
professor190 [17]
Should it be 64 cause that what i got<span />
4 0
3 years ago
Read 2 more answers
1. Edward goes to the store for back to school shopping. He buys 4 new
creativ13 [48]
Each shirt costs 8 dollars.
4 Shirts 1 Pant
1 Pant=20 dollars
52 (total)-20=32
4shirts divides by 32= 8
So 8 dollars per shirt
5 0
3 years ago
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