Answer: 39 years old
Step-by-step explanation:
First find Sarah's age.
It is said that their ages sum up to 50 and that Sarah's mother is 28 years older than Sarah.
Assume Sarah's age is x.
Sarah's mother's age would be: x + 28.
The expression would therefore be:
x + (x + 28) = 50
2x + 28 = 50
2x = 50 - 28
x = 22/2
x = 11
Sarah is 11 which means her mom is:
= 11 + 28
= 39 years old
3(8 - x) = 7x - 6
Can someone explain how to get the answer please
Answer:
x=3
Step-by-step explanation:
The steps are in the picture below.
2x-6у =4 help I don’t know
What is the mean of the set {4, 6, 8, 10}?
Answer:
Step-by-step explanation:
8 I think
Answer:
Defination:
.the collection of distinct elements or members.
Step-by-step explanation:
someone please help me
Answer:
(X,Y)=(1,-4)
Step-by-step explanation:
163-x=-52 equals what as the answer
Answer:
215=x
Step-by-step explanation:
Answer
x=215
Step-by-step explanation:
help me
Multiply 90 lb times 0.45 kg = ? kg
Answer:
40.5
Step-by-step explanation:
What is the slope of the function below?
y=3x+5 please help!!!
Write an equation of the line that passes through (0,-5) and is perpendicular to the line y=4/5x.
Answer:
y = -5/4x - 5
Step-by-step explanation:
Need help asap!
what is the value of x and y?
2x+3=y
Answer: `y`-value is double the `x`-value plus `3` will make the hanger balance.
So x can be 3 and y can be 9
helpppppppppppppppppppppppppppppppppppppppppppp PLEASE
Answer:
x = 7/12
Step-by-step explanation:
20 = 15(x + 3/4) (Given)
20 = 15x + 45/4 (Distribute)
35/4 = 15x (Subtract 45/4 on both sides)
7/12 = x (Divide 15 on both sides)
You can substitute the solution for x to check.
20 = 15(7/12 + 3/4)
20 = 15(4/3)
20 = 20
5. How much power is dissipated when 0.2 ampere of current flows through a 100-ohm resistor ?
Answer:
4 W
Step-by-step explanation:
Electrical power, P = I²R where I = current and R = resistance.
Given that I = 0.2 A and R = 100 Ω,
P = I²R
P = (0.2 A)² × 100 Ω
P = 0.04 A² × 100 Ω
P = 4 W
Dario increased his savings from $350 to $413 . What is darios percent increase in savings ?
Answer:
18%
Step-by-step explanation:
413-350=63%
63%/350=18%
8,-1,-5,2? Which one!.............
Answer: I would say -8,-1
Step-by-step explanation:
What is the value of 3/5÷9/2
Answer:
1/30
(Decimal: 0.033333)
Step-by-step explanation:
Answer:
2/15
Step-by-step explanation:
Hope this helps!
6's + 2) = 18
S+2=
S=
Answer:
s+2=3
s=1
Step-by-step explanation:
make it braintliest please
Rewrite the equation in slope intercept form
3y - 8x = -9
Answer:
y = (8/3)x - 3
Step-by-step explanation:
To get to slope intercept, just solve for y
3y - 8x = -9
3y = -9 + 8x
y = (-9 + 8x)/3
y = -9/3 + 8x/3 (distribute the 3 so we can reach the right form)
y = -3 + 8/3(x)
finally write in slope intercept form:
y = (8/3)x - 3
Could someone pls help me and explain this if you know it!!
Answer:
25% on question one
Step-by-step explanation:
For example, on question one, 5 students drink more than half a dozen sodas a week. If there is a total of 20 students you'd divide 5 by 20 and that should be the answer.
Which letter is in the solution set for graph #2
Answer:
AStep-by-step explanation:
y > 0 - the region above the line together with that line
y ≥ 0 - the region above the line together with that line
y < 0 - the region below the line without that line
y ≤ 0 - the region below the line together with that line
We have:
y > 2 - the region above the line together with that line
y ≥ 2x - 3 - the region above the line together with that line
look at the picture
The common part is the solution.
Express in the form n : 1
9:3
Answer:
n =3
hope it helps
Answer:
3:1
Step-by-step explanation:
cut by 3
..............
A number n is no more than 8.
Answer:
n<8
Step-by-step explanation:
Answer: N < 8
Step-by-step explanation:
16) Ken earned $128 from his part-time job this summer. He spent 25% of his money on games. He
is going to donate 1/6 of the remaining money to charity. How much will the charity receive?
OA) $15
OB) $16
OC $32
OD) $80
Answer:
B) $16
Step-by-step explanation
Select the equation that represents the graph above.
y=x√−2y is equal to square root of x minus 2 , ,
y=x√+2y is equal to square root of x plus 2 , ,
y=x+2y is equal to x plus 2 , ,
y=x+2−−−−−√
Answer:
_
just did the test and got it right its /x + 2
Step-by-step explanation:
just did the test i cant make the simble though but the right answer is the one where the line is only above the x oh wait actually i see your questions know my delete key broke soooo its the 2nd option
Find the length and width of a rectangle.
Perimeter = 50
Side A = 3x + 2
Side B = x - 5
Step-by-step explanation:
Perimeter = 2 * (Side A + Side B)
= 2 * (3x + 2 + x - 5)
= 2 * (4x - 3)
= 8x - 6.
We have 8x - 6 = 50, so 8x = 56 and x = 7.
Length of rectangle = 3(7) + 2 = 23.
Width of rectangle = (7) - 5 = 2.
Answer:
Length of rectangle = 3(7) + 2 = 23.
Width of rectangle = (7) - 5 = 2.
Step-by-step explanation:
Yesterday, there were 40 problems assigned for math homework. Gavin got 28 out of 40 problems correct. What percentage did Gavin get correct?
Write your answer using a percent sign (%).
Answer:
70%
Step-by-step explanation:
I'm pretty sure its 70 because write it as a fraction 28/40 when divide them both and you get 0.7 which is 70. I hope that works
Factor the trinomial: 5x^2 + 33x + 18
Answer:
here you go
Step-by-step explanation:
Simplifying
5x2 + 33x + 18 = 0
Reorder the terms:
18 + 33x + 5x2 = 0
Solving
18 + 33x + 5x2 = 0
Solving for variable 'x'.
Factor a trinomial.
(6 + x)(3 + 5x) = 0
Solve the inequality.
-4(2n-6)
Answer: -8n + 24
Step-by-step explanation:
-4(2n-6)
-8n + 24
Answer:-8n+24
Step-by-step explanation:
If abx-5=0 what is x in terms of a and b?
My answers: A. x=5/ab B. x=-5/ab C. x=5-ab D. x=ab-5
Please help... Thanks :)
Answer:
A. x=5/ab
Step-by-step explanation:
abx - 5 = 0
x = 5 ÷ ab
Mike saves $2,000 at a yearly simple interest rate of 2%. He earns $280 in interest. For how many years did he save this money?
Answer:
7 years.
Step-by-step explanation:
To find this, we need to find 2% of 2,000. To do this, we mulitply 2,000 by .02. This gets us 40. Now, we need to divide 280 by 40 to find the amount of years it took for Mike to get this money. When we do that, it gets us 7. That means Mike saved that money for 7 years.
The number of years that he saves this money will be 7 years.
What is simple interest?Simple interest is the concept that is used in many companies such as banking, finance, automobile, and so on.
The formula for interest is written as,
I = (PRT)/100
Where P is the principal, R is the rate of interest, and T is the time.
Mike saves $2,000 at a yearly simple interest rate of 2%. He earns $280 in interest. Then the number of years is calculated as,
$280 = ($2,000 x 2 x T) / 100
$28,000 = $4,000 x T
T = $28,000 / $4,000
T = 7 years
The number of years that he saves this money will be 7 years.
More about the simple interest link is given below.
https://brainly.com/question/2793278
#SPJ5
If a rectangle piece of dimensions 3 cm x 2 cm is cut from one corner of a rectangular sheet of dimensions 10 cm x 6 cm and attached to it's side projecting out of the rectangle, what will be the change in perimeter of the new shape thus formed?
Answer:
[tex]6\ \text{cm}[/tex]
Step-by-step explanation:
The sides of the larger rectangle are 10 cm and 6 cm.
The sides of the part cut out are 3 cm and 2 cm.
The part cut out is attached to one of the sides of the rectangle.
Perimeter of the new shape will be
[tex]6+7+2+3+2+3+2+13=38\ \text{cm}[/tex]
Perimeter of old shape
[tex]2(10+6)=32\ \text{cm}[/tex]
Change in the perimeter is [tex]38-32=6\ \text{cm}[/tex]
The perimeter of changed by [tex]6\ \text{cm}[/tex].
What is the perimeter of a rectangle that
is 5 inches by 3 inches?
Answer:16
Step-by-step explanation: