Answer:
x = 5
Step-by-step explanation:
4x - 3(2x - 1) = 7x - 42 ← distribute and simplify left side
4x - 6x + 3 = 7x - 42
- 2x + 3 = 7x - 42 ( subtract 7x from both sides )
- 9x + 3 = - 42 ( subtract 3 from both sides )
- 9x = - 45 ( divide both sides by - 9 )
x = 5
Please Someone Help Me
Answer:
x=4 : y = -8
Step-by-step explanation: happy to help let me know if you have any more questions.
1.) 87.743
2.)123.789
3.) 3256.1254
4.) 102356.78
5.) 78.56
Round to whole number..
Answer:
1.)88
2.)124
3.)3256
4.)102357
5.)79
Step-by-step explanation:
Im willing to give 20 points maybe even more
A teacher purchased 20 calculators and 10 measuring tapes for her class and paid $495. Later, she realized that she didn't order enough supplies. She placed another order of 8 of the same calculators and 1 more of the same measure tape and paid $178.50.
The system represents the situation
`20c+10m=495`
`8c+1m=178.50`
Find the cost of one calculator and the cost of one measure tape using one of our methods of solving systems.
Answer:
Equations are
20c + 10m = 495..............(1)
8c + 1m = 178.5.................(2)
Now , equation (2) * 10 = 80c + 10m = 1785...........(3)
So, Eq. (3) - Eq(1) =
80c + 10m - 20c - 10m = 1785 - 495
60c = 1290
c= 21.5
********************************************************
Now place the value of c in Eq (2)
So , m =6.5
Mark my answer as brainlist answer
Step-by-step explanation:
Help me! Another question on khan.
Answer:
what are you trying to find the slope?
Step-by-step explanation:
Answer:
calculando la circunferencia
5/6 times k = 1/6 what is K
Answer:
[tex] \frac{5}{6} k = \frac{1}{6} \\ \ \\ \ k = \frac{1}{6} \times \frac{6}{5} \\ \\ k= \frac{1}{5} [/tex]
Subtract 1/2h - 1 from 3/4h + 4
A: -1/4h
B: 1/4h + 3
C: -1/4h + 5
D: 1/4h + 5
Answer:
option d.......................
Factor out
the GCF
56x^2? + 16x + 64
Find the output, y, when the input, x, is -5. y=
Answer:
the picture has the answer (4y , 2.5x)
Step-by-step explanation:
Answer:
y = 7
Step-by-step explanation:
Locate x = - 5 on the x- axis, go vertically up to meet the graph at (- 5, 7)
Thus when the input is x = - 5, the output is y = 7
How many solutions does this system of equations have?
Answer:
One solution.
A system of linear equations has one solution when the graphs intersect at a point.
I hope it's helpful!
The measure of an angle is 89. Find the measure of its supplement
Step-by-step explanation:
Supplementary angles are equal to 180°. To determine the supplement of any angle, subtract the given angle from 180°.
[tex] \text{Supplement \: of \: 89 \: \degree = 180 \degree - 89\degree = \boxed{ \bold{ \text{91\degree}}}}[/tex]
Hope I helped ! ツ
Have a wonderful day / night ! ♡
# [tex] { \underbrace{ \text{Carry \: On \: Learning}}}[/tex] !! ✎
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PLEASE HELP I CANT CONTINUE WITH MY WORK UNLESS THESE ARE COMPLETE AND CORRECT
IP Check: Solving Systems by Elimination
Teachers instructions:
Do not forget the PARENTHESIS in your answers.
Answer:
1) x=3, y=-3
Step-by-step explanation:
10x + 7y = 9 —— (1)
-4x -7y = 9 —— (2)
(1) + (2)
6x = 18
x = 18/6
x = 3
put x=3 in (1)
10(3) + 7y = 9
30 + 7y = 9
7y = 9 - 30
7y = -21
y = -21/7
y = -3
please give me brainlist if it is helpful for you
What is the exact value of tan(−π/4)?
Answer:
-1
Step-by-step explanation:
help, please I don't understand
Answer:
The second top one. if they have ANY repeating y values its not a function
Step-by-step explanation:
the scale of a model is 0.5in : 6 ft. find the length of the model for an actual length of 204 ft
Answer:
17 in
Step-by-step explanation:
.5 in : 6 ft
204/6 x .5 = 17
SOMONE HELP PLEASE! I HAVE BEEN STRUGGLING ALL DAY!
Answer: 378 the second option
Step-by-step explanation:
Answer:
378
Step-by-step explanation:
Multiply 9 and 12 then divide by 2 to get the area of the triangle then multiple by 7 to get the volume
Select the correct answer,
What is the value of x?
log3 x = 4
A.27
В.7
С.12
D. 81
Answer:
D. 81
Step-by-step explanation:
Raise
3
to the power of
4
.
81
=
x
Rewrite the equation as
x
=
81
.
x
=
81
i dont understand this
Find the slope of the linear function
y=5/4x-9
Answer:
[tex]\frac{5}{4} x[/tex]
Step-by-step explanation:
y = mx+ b
m = slope
b = y-intercept
[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the straight lines.
The equation of a straight line is given as,
y = mx+c, hence here, m = slope, c = y-intercept..
so, y = 5/4x-9
.m = 5/4
so the slope is 5/4
how does (46)(4) = 56 please tell me
Answer:
ok, so 46 times 4 is 184.
Step-by-step explanation:
46
x 4
-------
184
So 6 times 4 is 24 and then you carry over the 2. 4 times 4 is 16. You add 2 to 16 and you get 18. So the total would be 184.
It's kinda hard to explain over brainly
Answer:
impossible
Step-by-step explanation:
46x4= 276
please mark me as brainlist
Si un terreno tiene 15 m de ancho y 40 m de largo y ademas al lado existen 5 terrenos identicos ¿cual es el area de todos los terrenos?
no se boy a septimodkxkdkdkdkdkdoi
5. A jewelry supply shop buys silver chains from a manufacturer for $45.00. and then sells the
chains at a 57% markup. What is the retail price of a silver chain?
pls help if you know it
during a high school basketball game the home team scored 51 points and the opponent's score 62 points what is the point differential for (the difference between the number of points scored by a team and its opponent) for the home team?
-11
11
-10
10
Answer:
11
Step-by-step explanation:
just do 62-51=11 which gets you the difference between points
If flx) = 2x – 6 and g(x) = x-2x?, find each value.
Answer:
The question is not correct. you have two linear functions. do you want to know their intersection point?
Step-by-step explanation:
[tex]f(x)=2x-6\\[/tex]
[tex]2x-6=0[/tex]
[tex]2x=6[/tex]
[tex]\frac{2x}{2} =\frac{6}{2\\}[/tex]
x=3
Then you just plug into g(x)
[tex]g(x)=x-2x[/tex]
[tex]g(x)=3-2(3)\\[/tex]
[tex]g(x)= 3-6[/tex]
So,
f(x)=3
g(x)=-3
Please do number 3___________________
9514 1404 393
Answer:
m∠SVW = 80°
Step-by-step explanation:
3. The sum of same-side interior angles SVW (4x°) and VWT (5x°) is 180°. This can be used to solve for x and to find the angle values.
4x + 5x = 180
9x = 180 . . . . . . . . collect terms
x = 20 . . . . . . . . . . divide by 9
m∠SVW = 4x° = 4(20)°
m∠SVW = 80°
_____
4. Then m∠VWT = 180° -80° = 100° = 5x°.
__
5. Consecutive interior angles are supplementary. ("Same-side" and "consecutive" are used interchangeably in this context.)
PLEASE HELP Find the product of( -3-2i ) and it’s conjugate.
Please help me on this I need help and nobody is really helping
Answer:
(0,0)
Step-by-step explanation:
That is the middle.
Find and reduce
5/6 - 2/3 x 3/4
Answer:
1/3
Step-by-step explanation:
Answer: 1/3
Step-by-step explanation:
A cone has a volume of 47.1 cm³ and a radius of 3 cm what is its height?
Radius of cone ( r ) = 3 cm,
Curved surface area of a cone= 47.1 cm²
Curved surface area of a cone= πrl
47.1 = πrl
47.1 = 3.14 × 3 × l
l = 47.1 / (3.14 × 3)
l = 15.7 / 3.14= 1570/314= 5 cm
slant height (l) = 5 cm
Height of a cone (h) = √(l²) - (r²)
h = √ 5² -3²
h = √ 25 - 9 = √ 16 = 4 cm
h = 4 cm
Volume of cone= ⅓(πr²h)
= ⅓(3.14 × 3 × 3 × 4)
= 3.14 × 12= 37.68 cm³
Hence, the volume of a cone is 37.68 cm³.
Roberto earns $6.50 per hour. He worked 32 hours at the regular rate, 8 hours at a time and a half, and 8 at double time. How much did he earn?
Answer $390
Step-by-step explanation:
Answer:
$390
Step-by-step explanation:
First Roberto works 32 hours at 6.50 per hour. At that time, he earn 32*6.5 = $208. Then he works 8 hours at a time and a half. This means that his pay rate is 50% more, or 6.5*1.5 = $9.75 per hour. Since he worked 8 hours at this pay rate, he earns 8*9.75 = $78. And then he works 8 hours double time. This means his pay rate was doubled during that duration. 6.5*2 = 13, 13*8 = $104.
Total: 208 + 78 + 104 = $390
Which shows the distributive property?
1. 5x + 2 = 2 + 5x
2. 5(x + 2) = 5x + 10
3. 5(x + 2) = 5(2 + x)
Please answer the pictures provided
Answer:
-6-3
Step-by-step explanation: