Sally is 10 years older than Tim. In 8 years, the sum of their ages will be 40. Determine how old Sally and Tim are now

Answers

Answer 1

Answer: SALLY==A

TIM====B

A=B+10

A+8+B+7=40

A+B=40-10

Step-by-step explanation: hope you understand


Related Questions

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP

Answers

Answer: it think it’s the third one

Step-by-step explanation:

concert the scientific notation into a standard form number. 1.23* 10^-5

Answers

Answer:

0.0000123

Step-by-step explanation:

That " -5 " exponent requires that we move the decimal place 5 units to the left, which results in:

0.0000123

Solve: -4 (x + 2) =24
show work

Answers

Answer:

-4(x+2)=24

distribute

-4x-8=24

+8

-4x=32

divide by -4

x=-8

so c
Hope This Helps!!!

Hello.

First, let's use the Distributive Property and distribute -4:

[tex]\mathrm{-4(x+2)=24}[/tex]

[tex]\mathrm{-4x-8=24}[/tex]

Now, add 8 to both sides:

[tex]\mathrm{-4x-8+8=24+8}[/tex]

[tex]\mathrm{-4x=24+8}[/tex]

[tex]\mathrm{-4x=32}[/tex]

Now, divide both sides by -4:

[tex]\Large\boxed{\sf{x=-8}}[/tex]

I hope it helps.

Have a nice day.

[tex]\boxed{imperturbability}[/tex]

says find the measure of the indicated angle!! pls help!!! marking brainliest and i have to show work!!

Answers

answer:

sin theta=18/21

sin theta ^-1 (18/21)

=58.9972808661

therefore, angle ? = 59°

drug has a half-life of 4 hours. Assuming someone takes a dose of 512 mg, how much of the drug remains in the system after 36 hours?
0 1 mg
© 0.0000001 mg
O 0.5 mg
0 168 mg

Answers

Answer:

36 / 4 = 9 half-lives

2^9 = 512

Therefore after 36 hrs 512 / 512 = 1 mg remains

Answer:

1 mg

Step-by-step explanation:

A rectangle with constant area has possible lengths and widths as shown in the table below. width vs. length of a rectangle width (w) length (l) 2 37.5 4 18.75 6 12.5 8 9.375 which equation can be used to find any corresponding length and width that fit the pattern in this table? l = startfraction k over w endfraction, where l is the length, w is the width, and k is a constant (w not-equals 0) l = m w b, where l is the length, w is the width, and m and b are constants l = k w superscript one-half, where l is the length, w is the width, and k is a constant l = a w squared, where l is the length, w is the width, and a is a constant

Answers

The equation, which is used to find any corresponding length and width that fit the pattern in the provided table is,

[tex]I=\dfrac{k}{w}[/tex]

What is the area of a rectangle?

Area of a rectangle is the product of the length of the rectangle and the width of the rectangle. It can be given as,

[tex]A=a\times b[/tex]

Here, (a)is the length of rectangle and (b) is the width of the rectangle.

A rectangle with constant area has possible lengths and widths as shown in the table below.

Width vs. Length of a rectangle

width (w)       2       4        6        8length (l)     37.5  18.75  12.5   9.375  

In the above table, the length of a rectangle is decreasing with increasing the width of a rectangle.

For such relation, the value of w should be inversely proportional to the length of it. The first option given as,

[tex]I=\dfrac{k}{w}[/tex]

Here l is the length, w is the width, and k is a constant (w not-equals 0).

In this expression, the length of the rectangle is inversely proportional to the width of the rectangle.

Thus, the equation, which is used to find any corresponding length and width that fit the pattern in the provided table is,

[tex]I=\dfrac{k}{w}[/tex]

Learn more about the area of rectangle here;

https://brainly.com/question/11202023

Answer:

a

Step-by-step explanation:

I need help...

Five more than a number is 23.
Find the number

Answers

Answer:

18

Step-by-step explanation:

5 more a number equals 23.

Subtract 23 and 5, the number is 18.

Check; 18 + 5 = 23.

Hope this helps!

-Jerc

18
23-5=18 hope that helped

WHAT IS THE AREA OF THE TRIANGLE???

Answers

Answer:

56 m^2 is your answer

first solve the triangles

1/2 * base * height= 1/2*4*5= 10

there are 4 triangles so multiply 10 by 4 you get 40

then solve the square = s multiply by s= 4*4= 16

add 40 and 16 you get 56

please mark brainliest

If AC = 206, find the value of Then find AB and BC

Answers

Answer:

B is the midpoint. AB+BC=AC

Since B is the midpoint, lets take AB and BC to be x.

x+x = 206

2x = 206

x = 103

Therefore the value AB and BC is 103.

B is the midpoint AB+BC=AC

Small cubes of edge length frac{1}{4}
4
1

inch will be packed into the rectangular prism.


How many small cubes are needed to completely fill this rectangular prism?

small cubes

Answers

Answer:

she will need 286 cubs

Step-by-step explanation:

5.25x4x3.25=71.5

71.5 divided by 0.25=286

2. Roberto has a wealthy uncle who gives him two options to save money in a bank
account to save for a PlayStation 4, which will cost $518.
Option 1: Roberto's uncle deposits $100 in the first month and $50 for each additional month.
Option 2: Roberto's uncle deposits $5 for the first month and will double the about in the
account each month.
Which option above can be written as a geometric sequence?
A. Option 1
B. Option 2
C. Both Option 1 and 2
D. Neither Option 1 or 2

Answers

Answer:

  B.  Option 2 (only)

Step-by-step explanation:

A geometric sequence is a sequence of terms that have a common ratio.

Option 1

The deposits are ...

  100, 50, 50, 50, ...

The ratios of terms of this sequence are ...

  1/2, 1, 1, 1

So, the ratio is not constant, and the sequence is not geometric.

__

Option 2

The deposits are ...

  5, 10, 20, 40, ...

The ratios of terms of this sequence are ...

  10/5 = 2, 20/10 = 2, 40/20 = 2, ...

The ratio is constant, so the sequence of deposits for Option 2 is geometric.

Triangle ABC was dilated by 50% what is the relationship between AC and A’C’

A) AC= A’C’
B) AC= 5(A’C’)
C) AC= 1/2 (A’C’)
D) 1/2 (AC)= A’C’

Answers

Answer:

1/2(AC) = A'C'

Step-by-step explanation:

IF Triangle ABC is 100% then, A'B'C' be 50% which is 1/2(AC) = A'C'

Answer:

1/2(AC) = A'C' Is gonna be the answer

Step-by-step explanation:

hope it helped

Adam graphs a quadratic function. The vertex of the parabola he graphs is located at (5, 0). What is the axis of symmetry

Answers

Step-by-step explanation:

the vertex is on the axis of symmetry so the axis of symmetry would be x=5

Answer:

the axis of symmetry is x=5

25% discount off of $350
Original:
Discount:
New price:
Plz help

Answers

Original:350 discount:87.50 off new price: 262.5

I think original price is $350

the discount will be 25% of 350 so it will be 25/100 x 350 to get 87.5 dollars

the new price's percentage is 100% -25% so to get the new price it'll be 75% of 350 to get 262.5 dollars

Help pls ❤️❤️❤️ I need help lol

Answers

Answer:

It is impossible to write an 9dd number with even digits.

Just use logic

How can an even numbers pair and become an odd number

Answer:

2/2

Step-by-step explanation:

2/2 simplified equals 1.  The 2s are even digits, but when simplfied, they give you 1 (an odd number).

What is the answer to this and show the work please.

Answers

Which method? There is the substitution method, elimination method, and comparison method

PLEASE HELP ILL GIVE BRAINLIEST AND THANKS
SOLVE THE SIMULTANEOUS EQUATION
3y=6x+3 and 3y=4x+6

Answers

Answer:

x=3/2

y=4

Step-by-step explanation:

3y=6x+3

3y=4x+6

we see that 3y=3y so even the right side of the equations are equal.

6x+3=4x+6

6x-4x=6-3

2x=3

x=3/2

so easily we find y

we found that x=3/2 so

3y=6*(3/2)+3=9+3=12

y=12/3=4

so the solution of simultaneous equation is

x=3/2

y=4

What is the coordinate for the image of point H(2, –6) under a 90° clockwise rotation about the origin?
H’(–6, –2)
H’(6, –2)
H’(–6, 2)
H’(6, 2)

Answers

Answer:

a) H' (-6, -2)

Step-by-step explanation:

For 90° rotation, coordinates of a point change like this

(x, y) ---> (y, -x)

So, for our point

H(2, –6)  ---> H' (-6, -2),

Answer:

its A

Step-by-step explanation:

took the test

Which values are solutions to the inequality below? Check all that apply.
x2 < 10
A. 4
B. 3
C. -2
D. -4

Answers

Answer:

positive 4 is the correct answer

let please help me please​

Answers

Answer:

p = 170

Setting up the formula:

The mean is the sum of the digits divided by the total digits in the set.

[tex]\rightarrow \dfrac{\text{Sum of digits}}{\text{Total digits}} = \text{Mean}[/tex]

[tex]\rightarrow \dfrac{\text{Sum of digits}}{\text{Total digits}} = 39[/tex]                                                                     [Mean = 39]

[tex]\rightarrow \dfrac{25 + p}{\text{Total digits}} = 39[/tex]                                                     [Sum of digits = 25 + p]

[tex]\rightarrow \dfrac{25 + p}{5} = 39[/tex]                                                                         [Total digits = 5]

Step-by step calculations:

Use cross multiplication:

[tex]\rightarrow 25 + p= 39 \times 5[/tex]    

Simplify the RHS:

[tex]\rightarrow 25 + p= 39 \times 5[/tex] 

[tex]\rightarrow 25 + p= 195[/tex] 

Subtract 25 both sides:

[tex]\rightarrow p = 195 - 25[/tex]

[tex]\rightarrow p = 170[/tex]

Solve for c in the literal equation 9p + 7c = p. Represent any fractions in reduced proper or improper form only.

Answers

Answer:

-8/7p=c

Step-by-step explanation:

add 9p to both sides of the equation

then divide both sides by 7

tah dah

Please do no fakes or you get banned!

Answers

Answer:

A

Step-by-step explanation:

They are corresponding angles because they are on the same side of the transversal, but one is an interior and one is an exterior angle.

Your car is worth $20,000 but it depreciates at a rate of
12% each year.
Write an equation showing how much your car is worth
each year.
A)f(x) = 20,000 - 12x
B)f(x) = 20,000 - 1.12*
C)f(x) = 20,000 -12%
D)f(x) = 20,000 - 0.88%

Answers

Answer:

D

Step-by-step explanation:

since the car value is decreasing by 12% each year, just take the original  amount and multiply by 88% to get the value of the car for the next year, so on and so forth

Two lines, A and B, are represented by equations given below: Line A: y = x − 2 Line B: y = 3x + 4 Which of the following shows the solution to the system of equations and explains why? (−3, −5), because the point does not lie on any axis (−3, −5), because the point satisfies both equations (−4, −8), because the point satisfies one of the equations (−4, −8), because the point lies between the two axesTwo lines, A and B, are represented by equations given below: Line A: y = x − 2 Line B: y = 3x + 4 Which of the following shows the solution to the system of equations and explains why? (−3, −5), because the point does not lie on any axis (−3, −5), because the point satisfies both equations (−4, −8), because the point satisfies one of the equations (−4, −8), because the point lies between the two axes

Answers

Answer:

Step-by-step explanation:  Vertex:

(

3

,

1

)

Focus:

(

3

,

7

8

)

Axis of Symmetry:

x

=

3

Directrix:

y

=

9

8

x

y

1

7

2

1

3

1

4

1

5

7

QS is a midsegment of △PRT.
If PT=u+6 and QS=u, what is the value of u?

Answers

Answer:

6

Step-by-step explanation:

PT = 2QS

u+6 = 2u

2u-u = 6

u=6

PLEASE HELP ME!! PLEASE!! HURRY!! I'M BEIG TIMED!! PLEASE HURRY!! HELP!!



Multiply the numbers using expanded form.


652 = 600 + 50 + 2

x 3 = x 3

------------------------------------

1956 = ____ + ___ + 6

Answers

1900+ 50+ 6 or 1000+ 950+ 6

Draw two examples of different right triangles that can buy on the line of a slope of 2/5

Answers

Answer:i need more

Step-by-step explanation:

Multiply 531.7 and 9 together.
Round to the nearest hundredth when necessary.
Answer:

Answers

Answer:

answer is 4785.3 explained in picture

[tex][Hello,BrainlyUser][/tex]

Answer:

47853

Step-by-step explanation:

[tex]\mathrm{Multiply\:without\:the\:decimal\:points,\:then\:put\:the\:decimal\:point\:in\:the\:answer}[/tex]

[tex]Line\;up\;the\;numbers[/tex]

[tex]\begin{matrix}\:\:&5&3&1&7\\ \times \:&\:\:&\:\:&\:\:&9\end{matrix}[/tex]

[tex]multiply\;the\;top\;number\;by\;the\;bottom\;number\;one\;digit\;at\;a\\\;time\;starting\;with\;the\;ones\;digit[/tex]

[tex]multiply\;the\;bold\;number:7*9=63[/tex]

[tex]\mathrm{Carry\:}6\mathrm{\:to\:the\:column\:on\:the\:left\:and\:write\:}3\mathrm{\:in\:the\:result\:line}[/tex]

[tex]\frac{\begin{matrix}\:\:&\:\:&\:\:&6&\:\:\\ \:\:&5&3&1&\textbf{7}\\ \times \:&\:\:&\:\:&\:\:&\textbf{9}\end{matrix}}{\begin{matrix}\:\:&\:\:&\:\:&\:\:&3\end{matrix}}[/tex]

[tex]Add\; the \;carried \;number\;to\;the\;multiplication:6+1*9=15[/tex]

[tex]\mathrm{Carry\:}1\mathrm{\:to\:the\:column\:on\:the\:left\:and\:write\:}5\mathrm{\:in\:the\:result\:line}[/tex]

[tex]\frac{\begin{matrix}\:\:&\:\:&1&\textbf{6}&\:\:\\ \:\:&5&3&\textbf{1}&7\\ \times \:&\:\:&\:\:&\:\:&\textbf{9}\end{matrix}}{\begin{matrix}\:\:&\:\:&\:\:&5&3\end{matrix}}[/tex]

[tex]Add\; the \;carried \;number\;to\;the\;multiplication:1+3*9=28[/tex]

[tex]\mathrm{Carry\:}2\mathrm{\:to\:the\:column\:on\:the\:left\:and\:write\:}8\mathrm{\:in\:the\:result\:line}[/tex]

[tex]\frac{\begin{matrix}\:\:&2&\textbf{1}&6&\:\:\\ \:\:&5&\textbf{3}&1&7\\ \times \:&\:\:&\:\:&\:\:&\textbf{9}\end{matrix}}{\begin{matrix}\:\:&\:\:&8&5&3\end{matrix}}[/tex]

[tex]Add\; the \;carried \;number\;to\;the\;multiplication:2+5*9=47[/tex]

[tex]\mathrm{Carry\:}4\mathrm{\:to\:the\:column\:on\:the\:left\:and\:write\:}7\mathrm{\:in\:the\:result\:line}[/tex]

[tex]\frac{\begin{matrix}\:\:&4&\textbf{2}&1&6&\:\:\\ \:\:&\:\:&\textbf{5}&3&1&7\\ \times \:&\:\:&\:\:&\:\:&\:\:&\textbf{9}\end{matrix}}{\begin{matrix}\:\:&\:\:&7&8&5&3\end{matrix}}[/tex]

[tex]Add\;the\;carried\;digit,4,to\;the\;result[/tex]

[tex]\frac{\begin{matrix}\:\:&4&2&1&6&\:\:\\ \:\:&\:\:&5&3&1&7\\ \times \:&\:\:&\:\:&\:\:&\:\:&9\end{matrix}}{\begin{matrix}\:\:&4&7&8&5&3\end{matrix}}[/tex]

[CloudBreeze]

The radius of a circle is 11 inches. Find the diameter.

Answers

Answer:

22 inches

Step-by-step explanation:

Diameter=2×Radius

Radius=11

Diameter=11×2=22

At a NASCAR racetrack, the distance per lap is 2 miles. Lou Lambert drives his car at a constant rate of 160 miles per hour. Ralph Redding drives his car at a constant rate of 170 miles per hour. How long will it take before Ralph gains 2 laps in relation to Lou?​

Answers

Answer:

24 minutes

Step-by-step explanation:

Given:

Distance per lap = 2 miles

Speed of Lou Lambert = 160 miles/hr

Speed of Ralph Redding = 170 miles/hr

Speed difference between the two = 170 - 160 = 10 miles/hr

Therefore, we can say that Ralph gains 10 miles in 60 minutes over Lou.

We have to find the time in which Ralph will gain 2 laps i.e. 2 [tex]\times[/tex] 2 = 4 miles.

Let us use unitary method to find the required time.

10 miles are gained by Ralph in 60 minutes

1 mile will be gained in [tex]\frac{60}{10} = 6\ minutes[/tex]

4 miles will be gained in 6 [tex]\times[/tex] 4 = 24 minutes

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