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3 years ago

Mr. Lucas contributed $1,576 to his

Mathematics

1 answer:

ira [324]3 years ago

4 0

28,368 dollars because 1,576 x 18 is 28,368

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15% tip to 100 cents why does this make a unit less factor?

evablogger [386]

15% and the corresponding 0.15 is by necessity unit-less; it's just a multiplier. If you run up a $1 bill and wish to tip 15%, multiply $1 by 0.15, obtaining $0.15.
Then the total due would be $1 plus $0.15, or $1.15.

Note that $0.15
-------- = 0.15 is unit-less
$1

4 0

3 years ago

3(x-7)+8=-20<br><br><br><br>can someone explain how to do this step by step

Mrrafil [7]

3(x-7)+8=-20

Multiply the bracket by 3

(3)(x)(3(-7)+8= -20

3x-21+8= -20

3x-13= -20

Move -13 to the other side. Sign changes from -13 to +13.

3x-13+13= -20+13

3x= -7

Divide by 3

3x/3= -7/3

x= -7/3 or in mixed number : -2 1/3

Answer : x= -7/3 or in mixed number : -2 1/3

3 0

4 years ago

Read 2 more answers

Help please! I need to write 4y =-3x + 12 in standard form, find the y-intercept of the previous equation, as an ordered pair, a

damaskus [11]

Answer:

$-3x+4y=12\\y-intercept: (0,3)\\x-intercept: (-4,0)$

Step-by-step explanation:

The standard form of a linear equation is $ax+by=c$ , where $a$ , $b$ , and $c$ are constants in the equation.

Based on the equation you have provided, the standard form would be $-3x+4y=12$ , where $a=-3, b=4, c=12$ .

To find the y-intercept, set $x=0$ .

$-3(0)+4y=12\\0+4y=12\\4y=12\\y=\frac{12}{4} =3$

Therefore, the y-intercept is $(0,3)$ .

Do the same thing for the x-intercept, but this time with $y=0$ .

$-3x+4(0)=12\\-3x+0=12\\-3x=12\\x=\frac{12}{-3} =-4$

Therefore, the x-intercept is $(-4,0)$ .

5 0

3 years ago

For which equation is x = 9 a solution? A. 3x – 7 = –34 B. x – 9 = 1 C. 2003-05-02-00-00_files/i0020000.jpg D. 4x + 5 = 41

Monica [59]

X=9

A) 3x-7=34
3x= 34+7
3x= 41
x= 41/3

B) x-9=1
x=1+9
x=10

C) dude what is this

D) 4x+5=41
4x=41-5
4x=36
x=36/4
x=9 YAYY

Hope it helps!
#MissionExam001

7 0

3 years ago

Pls help me and thank you!

Rudik [331]

Answer : -3/4 ..............

6 0

3 years ago