Answer:
D
Step-by-step explanation:
7a + 6 = -5(a -6)
<=> 7a + 6 = - 5a + 30
<=> 7a + 5a = 30 - 6
<=> 12a = 24
<=> a = 2
=> Answer is D
Hope this helps!
Answer:
a=2
Step-by-step explanation:
1. distribute the -5 to (a-6): 7a + 6 = -5a + 30
2. add 5a to both sides, and subtract 6 on both sides: 12a = 24
3. divide by 12: a = 2
May I have help this subject really is stressful
Answer:
hm?
Step-by-step explanation:
Multiplicación y división de números decimales positivos
Actividad 1.- Realiza el calculo de las siguientes multiplicaciones sin utilizar calculadora.
78×10=780
78×100=7,800 78×1000=78,000 31×100=3,100 135×1000=135,000
267×10=2,670
3825×100=382,500
6×100=600
15×10=150
Responde correctamente:
Qué observas al multiplicar un número natural por 10,100 o 1,000? Simplemente primero los números los multiplicó por el 1 y simplemente los 0 (cero) los agregó, y también que aumentan los ceros.
Actividad 2.-Haora multiplica un número decimal por 10,100 o 1,000 y observa que pasa.
0.2×10=2
0.02×100=2
0.002×1,000=2
0.13×100=13
0.489×1,000=489
0.3×10=3
0.76×1,000=760
0.84×100=84
6×100=600
Responde correctamente:
Qué observas al multiplicar un número decimal por 10,100 o 1,000?
Lo único que tendremos que hacer es mover la coma del decimal a la derecha tantas posiciones como ceros tenga el número.
Actividad 3.-Resuelve los siguientes problemas y haz las operaciones sin calculadora.
A) Un kilogramo de frijol cuesta $20.50, cuánto cuestan 100 kilogramos?
Kilogramo= $20.50
100 Kilogramos= $2050.00
20.50×100=2050.00
1) Todo número entero multiplicado por un múltiplo de 10 hereda los ceros de aquel múltiplo.
2) Si el número es decimal, entonces la coma es desplazada una cantidad de posiciones a la derecha equivalente a esos ceros heredados.
3) 100 kilogramos de frijol cuestan $ 2050.
1) Los casos a realizar sin necesidad de calculadora están correctamente desarrollados, puesto que observan la regla mnemotécnica de que todo número entero multiplicado por un múltiplo de 10 hereda los ceros de aquel múltiplo.
2) De manera semejante a 1), los casos a realizar sin necesidad de calculadora están correctamente desarrollados. Si el número es decimal, entonces la coma es desplazada una cantidad de posiciones a la derecha equivalente a esos ceros heredados.
3) La cantidad total ([tex]C[/tex]), en pesos, por 100 kilogramos de frijol es igual al precio unitario ([tex]c[/tex]), en pesos por kilogramo, por la masa comprada ([tex]m[/tex]), en kilogramos, es decir:
[tex]C = m\cdot c[/tex] (1)
[tex]C = 100\,kg\times 20.50\,\frac{\$}{kg}[/tex]
[tex]C = \$ \,2050[/tex]
100 kilogramos de frijol cuestan $ 2050.
Invitamos cordialmente a ver esta pregunta sobre decimales: https://brainly.com/question/24501213
1/2(4y+6)=4-2(y-6)/3
may this answer helps you dear
x^{2} +(3a+4b)x+(2a^{2} +5ab+3b^{2} )
Answer:
∣x+a+b∣∣x+2a+3b∣
Step-by-step explanation:
∣x+a+b∣∣x+2a+3b∣
Help please I need to pass
Answer:
(x+8, y+4).
Step-by-step explanation:
8 units to the right followed by 4 units up.
When 4/15 is written as a decimal, how many digits are in the smallest sequence of repeating digits? A. 3 B. 2 C. 1 D. 0
NO LINKS OR FILES TY!!!!
Answer:
It's B. 2Step-by-step explanation:
I Took the quiz In the question it says, "smallest sequence of repeating digits". The answer 2 makes senseHope This Helps Bye :]
3) Determine the equation of the line given by the graph.
A) y = 3x - 1
B) y=x-1
Oyo-x-1
D)y=-x-1
Answer:
A
Step-by-step explanation:
the x intercept is -1
3b+(-5)=(2b)³(-3)2+6=?
Answer:
b=-1
Step-by-step explanation:
given.3b+(-5)=(2b)³(-3)2+6=?
3b-5=8b-6+6
3b-5=8b
-5=8b-3b
-5=5b
-5/5=5b/5
b=-1
-3-5=-8-6+6=?
-8=-8=-8
A new discount cell phone service charges $55 a month plus $15.00 for every line on the plan. Choose the linear function that represents the relationship between
the number of lines (x) and the cost of the plan (y) per month.
Answer:
y = 15x + 55
Step-by-step explanation:
Sisters math question
5th
D16. The problem 7,291 – 19 is solved below using partial quotients. Identify what partial quotient was used in each step. Then, identify
your final quotient.
STEP 1
7291
- 5700
1591
- 1520
71
57
14
STEP 2
STEP 3
YOU CAN NOT MAKE ANY MORE GROUPS OF 19.
WHAT IS LEFT BECOMES YOUR REMAINDER
Answer:
How does one find use partial quotients for subration
Step-by-step explanation:
The bookstore sold m books on Monday and t books on Tuesday. But on Wednesday, r books were
returned. Write the expression for the total books sold.
Answer:
m+t-r
Step-by-step explanation:
I need help asap please help me
Answer:
B. Alternate exterior angles
Step-by-step explanation:
2b - 3 / 3 (fraction) - 5 = 10.
Solve for B
Step-by-step explanation:
2b - 3/3 - 5 = 10
2b - 1 - 5 = 10
2b - 6 =10
2b -6 +6 = 10 +6
2b = 16
b = 8
In which quadrant(s) do the graphs of y=x^2 and y=3x+10 intersect?
Answer:
Quadrants I and II
Step-by-step explanation:
y = x²
y = 3x + 10
x² = 3x + 10 Substitute x² for y
x² - 3x - 10 = 0 set the equation = 0
(x - 5) (x + 2) Factoring
x - 5 = 0 ; x + 2 = 0
x = 5 or x = -2
Now solving the y
y = x² or y = x²
y = (5)² or y = (-2)²
y = 25 or y = 4
The points of interception is points (5, 25) or (-2, 4)
(5, 25) in Quadrant I ; (-2, 4) in Quadrant II
Which statement is true?
A. The product and sum of
and 17 are both irrational.
B. The product and sum of and V17 are both rational.
C. The product of , and \17 is irrational, while the sum of and/17 is rational.
D. The product of and 17 is rational, while the sum of ; and V17 is irrational.
Answer: B
Step-by-step explanation: The Product and sum of 17 and both irrational.
can you find x and y
Answer:
yes
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
Your answer is 5,7... Oh that's wrong you forgot to link a file bud
Sam has $20. She buys 6 bags of chips and has $2 left over. Write and solve an equation to determine the cost of one bag of chips.
Whats the slope for this Table
x: 1,3,6,10
y: 2,8,17,29
and is it a positive, negative, zero, or undefined?
Answer:
here's the website ans the answers
Step-by-step explanation:
yes its positive and the slope is well I don't know sorry pls give me credit tho :((
Sara’s mother is now four times as old as Sara. In five years, she will be three times as old as Sara. What are their ages now?
Answer:
Sara's mother age : 40 years
Sara's age : 10 years
Step-by-step explanation:
Let Sara's mother age be x
and Sara age be y
Given , Sara's mother is now four time as old as Sara
• x = 4y ...1
also, in five years , she will be three times as old as Sara
In five years , Sara's mother age :- ( x + 5 )
Sara age :- ( y + 5 )
according to the question,
x + 5 = 3 ( y + 5 )
x + 5 = 3y + 15
x - 3y = 10 ... 2
putting value of x from 1 into 2
4y - 3y = 10
y = 10
putting y value in 1
x = 4y = 4 ( 10 ) = 40
So, Sara's mother age is 40years
and Sara's age is 10years .
4+(−3)+(−2)
help me plllllzzzzzzzzz
Answer:
the awnser is -1
Step-by-step explanation:
4+(-3)=1
1+-2=-1
Answer:
-1
Step-by-step explanation:
First, lets combine like terms (negatives with negatives)
-3 + -2 = -5
4-5 simplified equations from before
4-5= -1
so your answer is -1
hope this helps :)
I need help solving this problem
x=8
I hope this helps I would appreciate brainliest if possible :)
Answer:total is 180. Subtract 100. Then it’s 80
Step-by-step explanation:
180-100=80 degrees. It applies for the ones across.
In basic the answer is x=80
Question 1
o
In A CDE, U is the centroid, UK = 12, EM = 21, and UD = 9. Find CU.
-
U 12
K
9
Next Question
M
Check Answer
2021 McGraw-Hill Ede
Answer:
is it this?I just searched
10)
A
rectangular signboard is measured as 2.1 m wide
and 4.0m long, rounded to the nearest 0.1 m. Find
the interval for its possible
(a) length,
(b) width,
(c) perimeter, (d) area.
Give your answers in the form a
appropriate units.
.
Answer:
a) 3.9m to 4.1m
b) 2.0m to 2.2m
c) 11.8m to 12.6m
d) 60.84m to 81.36m
Step-by-step explanation:
c) 3.9+3.9+2.0+2.0=11.8
4.1+4.1+2.2+2.2=12.6
d) 3.9x3.9x2.0x2.0=60.84
4.1x4.1x2.2x2.2=81.3604
∠A and \angle B∠B are supplementary angles. If m\angle A=(7x-15)^{\circ}∠A=(7x−15)
∘
and m\angle B=(2x-3)^{\circ}∠B=(2x−3)
∘
, then find the measure of \angle A∠A.
Answer:
m ∠ A = 139° ; m ∠ B = 41°
Step-by-step explanation:
Supplementary angles sum = 180°
m ∠A + m ∠ B = 180°
(7x - 15) + (2x - 3) = 180°
9x - 18 = 180°
9x = 180 + 18
9x = 198°
x = 22
m ∠A = 7x - 15 = (7·22) - 15 = 154 - 15 = 139°
m ∠ B = 2x - 3 = (2·22) - 3 = 44 - 3 = 41°
Check: m ∠ A + m ∠ B = 180°
139° + 41° = 180
What is the rule that would be used to go from the pre-image to the image?
a
\large \left(x,y\right)\rightarrow\left(x+6,y\right)
b
\large \left(x,y\right)\rightarrow\left(x-6,y\right)
c
\large \left(x,y\right)\rightarrow\left(x,y+6\right)
d
\large \left(x,y\right)\rightarrow\left(x,y-6\right)
how much is 320+650=
Answer:
970
Step-by-step explanation:
Answer: 970
Step-by-step explanation:
Line up the number
320
+650
Then add 0 + 0 =0 then 2 + 5 = 7 then last 3 + 6 = 9
A stuntman falls from the top of a building 26 ft above the ground. The function h (t) -16t^2+26
gives the height of the man in feet after t seconds.
Answer:
let h(t)= 0 (because when it reaches the ground h=0)
0=-16t^2+116
16t^2=116
divide both sides by 16
t^2= 7.25
square root both sides to find t
t=2.69sec
if f(x)=x-5, then match each of the following.
f(5) 0
f(1) -5
f(-1) -4
f(8) -6
f(2) -3
f(0) 3
Answer:
-6 is f(-1)
-5 is f(0)
-4 is f(1)
-3 is f(2)
0 is f(5)
3 is f(8)
Step-by-step explanation:
[tex]\sf 2(4+9m)[/tex]
Rearrange terms
2(4+9m)
2(9m+4)
Distribute
2(9m+4)
18m+8
Solution
Solution18m+8
[tex]2(4+9m)[/tex]
[tex]2(9m+4)[/tex]
[tex]18m+8[/tex]
(Therefore, 18m+8 is the final answer)
Which value of m makes the statement true?
76−2m≤11+3m
13
11
8
5
Step-by-step explanation:
-3m-2m<_ 11-76
-5m<_-65
m>_13
therefore, option 1, 13.
hope this helps you.
