4(2+3c)=56 What would be the answer? Really Need Help On Sovling Multi-Step Equations

Answers

Answer 1

Answer: this should help you, Simplifying 4(2 + 3c) = 56(2 * 4 + 3c * 4) = 56(8 + 12c) = 56Solving8 + 12c = 56Solving for variable 'c'.Move all terms containing c to the left, all other terms to the right.Add '-8' to each side of the equation.8 + -8 + 12c = 56 + -8Combine like terms: 8 + -8 = 00 + 12c = 56 + -812c = 56 + -8Combine like terms: 56 + -8 = 4812c = 48Divide each side by '12'.c = 4Simplifyingc = 4

Answer 2

Answer: 8 + 12C = 56

12C = 48

C = 4

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By how many cm is 1/10 m longer than 1/100 m

Answers

1 cm is 1/100 m
so is 1/10 meter is 9 cm longer than 1/100 meter.

What are the slope, m, and y-intercept, (0, b), of the line described bythe equation 3x + 6y=12?
Write an
anation in
I have no idea how to do this I need help

Answers

Answer:

$\large \boxed{m = -(1)/(2);\text{ y-intercept = 2}}}$

Step-by-step explanation:

The slope-intercept form of an equation is

y = mx + b, where

m = the slope and

b = the y-intercept

We must solve your equation for y.

It will then be in the slope-intercept form.

$\begin{array}{rcll}3x + 6y & = & 12 & \n6y & = & 12 - 3x & \text{Subtracted 3x from each side}\ny&= &2 -(1)/(2)x& \text{Divided each side by 3}\n\mathbf{y} &= & \mathbf{-(1)/(2)x + 2}& \text{Rearranged terms}\n\end{array}\n\n\large \boxed{\mathbf{m = -(1)/(2);\textbf{y-intercept = 2}}}$

The diagram below shows the equation of your graph with m = -½ and the y-intercept at (0, 2)

if 60 seconds are in a minute 60 minutes are in an hour and 24 hours in a day then 86400 seconds are in a day what type of reasoning is this

Answers

Answer:

This is a deductive reasoning.

Step-by-step explanation:

Every statement like 60 seconds are in a minute, and 60 minutes are in a hour, and 24 hours are in a day is a premise. The conclusion is that there are 86,400 seconds in a day, which comes from: 24 hours / day * 60 minutes / hour * 60 second / minute = 86,400 second / day.

MARK ME AS BRAINLIST PLZ I REALLY NEED IT

I need to figure out the answer

Answers

Hello there,

If c=-2 just plug in -2 for every c you see.

(-2)²-7(-2)-8
This simplifies to
4+14-8
18-8
10

Hope this helps!

The answer to the problem is 10 because negative 2 squared is 4 plus 14 because negative 2 times negative 7 is 14 minus 8 which gives you 10.

Find all possible value of the given variable 1.h²+5h=0
2.z²-z=0
3.m²+13m+40=0
4.z²-3z=0
5.q²+7q=0
6.k²+2k=0
7.x²-3x-70=0
8.q²+7q-60=0
9.z²+9z-36=0
10.d²-13d+22=0

Answers

$1.\n \n h^2+5h=0 \n \nh(x+5)=0\n \nx=0 \ \ \ or \ \ \ x+5 =0\ \ |-5\n \nx+5-5=0-5\n \nx=0 \ \ \ or \ \ \ x=-5$

$2.\n \n z^2-z=0\n \nz(x-1)=0\n \nz=0 \ \ \ or \ \ \ z-1 =0 \ \ | +1\n \nz-1+1 =0 +1 \n \nx=0 \ \ \ or \ \ \ z=1$

$3.\n \nm^2+13m+40=0 \n \na=1 ,\ b=13, \ c=40 \n \n\Delta =b^2-4ac =13^2-4\cdot 1\cdot 40=169 - 1600=-1431 \n \nand \ we \ know \ when \ \Delta \ is \ negative, \ theres \ no \solution$

$4.\n \nz^2-3z=0 \n \n (z-3)=0\n \nz=0 \ \ \ or \ \ \ z-3 =0\ \ |+3\n \n z-3+3=0+3\n \nz=0 \ \ \ or \ \ \ z=3$

$5.\n \nq^2+7q=0 \n \nq(q+7)=0\n \nq=0 \ \ \ or \ \ \ q+7 =0\ \ |-7\n \nq+7-7=0-7\n \nq=0 \ \ \ or \ \ \ q=-7$

$6.\n \nk^2+2k=0\n \nk(k+2)=0\n \nk=0 \ \ \ or \ \ \ k+2 =0\ \ |-2\n \nk+2-2=0-2\n \nk=0 \ \ \ or \ \ \ k=-2$

$7. \n \n x^2-3x-70=0 \n \na=1,\ b=-3, \ c=-70 \n \n\Delta =b^2-4ac = (-3)^2-4\cdot 1\cdot (-70)= 9+280=289\n \n x_(1)=(-b-√(\Delta) )/(2a)=(3-√(289))/(2 )=( 3-17)/(2)=(-14)/(2)=-7$

$x_(2)=(-b+√(\Delta) )/(2a)=(3+√(289))/(2 )=( 3+17)/(2)=(20)/(2)=10\n \n(x+7)(x-10)=0$

$8.\n \nq^2+7q-60=0 \n \na=1,\ b=7, \ q=-60 \n \n\Delta =b^2-4ac = 7^2-4\cdot 1\cdot (-60)=49+240=289 \n \n x_(1)=(-b-√(\Delta) )/(2a)=(-7-√(289))/(2 )=( -7-17)/(2)=(-24)/(2)=-12$

$x_(2)=(-b+√(\Delta) )/(2a)=(-7+√(289))/(2 )=( -7+17)/(2)=( 10)/(2)= 5\n \n(x+12)(x-5)=0$

$9.\n \nz^2+9z-36=0 \n \na=1,\ b=9, \ q=-36 \n \n\Delta =b^2-4ac = 9^2-4\cdot 1\cdot (-36)= 81+144=225\n \n x_(1)=(-b-√(\Delta) )/(2a)=(-9-√(225))/(2 )=( -9-15)/(2)=(-24)/(2)=-12$

$x_(2)=(-b+√(\Delta) )/(2a)=(-9+√(225))/(2 )=( -9+15)/(2)=(6)/(2)=3\n \n(x+11)(x-3)=0$

$10.\n \nd^2-13d+22=0 \n \na=1,\ b=-13, \ q=22 \n \n\Delta =b^2-4ac = (-13)^2-4\cdot 1\cdot 22= 169-88=81\n \n d_(1)=(-b-√(\Delta) )/(2a)=(13-√(81))/(2 )=( 13-9)/(2)=(4)/(2)=2$

$d_(2)=(-b+√(\Delta) )/(2a)=(13+√(81))/(2 )=( 13+9)/(2)=(22)/(2)=11\n \n(d-2)(d-11)=0$

I don't understand can someone help please

Answers

In a whole hour, a half-hour goes by, two times.

In the first half-hour, 7/8 of a gallon leaks out of the pool.
In the second half-hour, another 7/8 of a gallon leaks out of the pool.

In the whole hour, (7/8 gallon + 7/8 gallon) leaks from the pool.

Can you add those two fractions, and make a single number ?

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Samuel is looking at the floor plan of his house to determine how much carpet he needs to buy for his basement. Based on the floor plan of his basement, how can he decompose the measurements into expressions find the area? A) First, find two areas using (4m + 10m = 14m2) and (8m + 3m = 11m2). Next, add (14m2 + 11m2 = 25m2). B) First, find two areas using (4m x 10m = 40m2) and (8m x 3m = 24m2). Next, add (40m2 + 24m2 = 64m2). C) First, find two areas using (4m x 10m = 40m2) and (8m x 3m = 24m2). Next, subtract (40m2 - 24m2 = 16m2). D) First, add all the labeled sides using (4m + 10m + 12m + 3m = 29m2). Next, add the remaining sides (8m + 7m = 15m2).