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3 years ago

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Mathematics

1 answer:

Allisa [31]3 years ago

3 0

Answer:

Step-by-step explanation:

First up, chill a bit xd

So hot dog = x

Drink = y

2 hot dogs = 2x

2 drinks = 2y

2x + 2y = 4.75

3 hot dogs = 3x

1 drink = y

3x + y = 7.75

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Responda abaixo: a)2x+3y=10*√4 b)x+2y+5*3=x+y

RoseWind [281]

Answer:

a) x = 10 + -1.5y

b) y+15

Step-by-step explanation:

a)2x+3y=10*√4

2x+3y=20

2x + 3y + -3y = 20 + -3y

2x + 0 = 20 + -3y

2x = 20 + -3y

x ÷ 2 = (20 + -3y) ÷2

x = 10 + -1.5y

b)x+2y+5*3=x+y

x+2y+15=x+y

x+2y+15 - y=x+y - y

x+y+15 =x

x+y+15 - x =x - x

y+15

5 0

4 years ago

in the school band, there are 5 trumpet players and f flute players. there are twice as many flute players as there are trumpet

Kitty [74]

Then answer is 10 flute players

5x2=10

7 0

4 years ago

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Jenna has $50 to spend at a local crafts fair. The entrance price for the fair is $10. At a pottery stand, Jenna finds some cups

Ulleksa [173]

8 is the maximum she can buy
50-10=40
40/4.5=8.88888

8*4,5=36

5 0

3 years ago

What is the area of the obtuse triangle given below?

Aloiza [94]

Answer:

C. 49 sq units

Step-by-step explanation:

Area of a triangle is

A = 1/2bh

base is 14 and height is 7

14 * 1/2 is 7

7*7 = 49

8 0

4 years ago

What is the least common multiple of 6x^2+39x-21 and 6x^2+54x+84?

SOVA2 [1]

Answer:

$12x^3+102x^2+114x-84$

Step-by-step explanation:

Given polynomials:

$\begin{cases} 6x^2+39x-21\\6x^2+54x+84 \end{cases}$

Factor the polynomials:

Polynomial 1

$\implies 6x^2+39x-21$

$\implies 3(2x^2+13x-7)$

$\implies 3(2x^2+14x-x-7)$

$\implies 3[2x(x+7)-1(x+7)]$

$\implies 3(2x-1)(x+7)$

Polynomial 2

$\implies 6x^2+54x+84$

$\implies 6(x^2+9x+14)$

$\implies 6(x^2+7x+2x+14)$

$\implies 6[x(x+7)+2(x+7)]$

$\implies 6(x+2)(x+7)$

$\implies 2 \cdot 3(x+2)(x+7)$

The lowest common multiplier (LCM) of two polynomials a and b is the smallest multiplier that is divisible by both a and b.

Therefore, the LCM of the two polynomials is:

$\implies 2 \cdot 3(x+7)(x+2)(2x-1)$

$\implies (6x^2+54x+84)(2x-1)$

$\implies 12x^3+108x^2+168x-6x^2-54x-84$

$\implies 12x^3+102x^2+114x-84$

8 0

2 years ago

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