1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
myrzilka [38]
2 years ago
14

In 3 years time Sarah will be twice as old as Emma was last year .Emma now 11 years how old is Sarah

Mathematics
2 answers:
REY [17]2 years ago
7 0

Answer:

Sarah is 25 years old

Step-by-step explanation:

Andrews [41]2 years ago
3 0

Answer:

Step-by-step explanation:

You might be interested in
HeLp pLzZzZzZzZzZzZzZzZzZ
Gnoma [55]

Answer:


Step-by-step explanation:

Problem One (left panel)

<em><u>Question A</u></em>

  • The y intercept happens when x = 0
  • That being said, the y intercept is 50. It was moving when the timing began.

<em><u>Question B</u></em>

The rate of change = (56 - 52)/(3 - 1) = 4/2 = 2  miles / hour^2 (you have a slight acceleration.

<em><u>Question C</u></em>

  • 60 = a + (n-1)d
  • 60 =  50 + (n - 1)*2
  • 10/2 = (n - 1)*2/2
  • 5 = n - 1
  • 6 = n

The way I have done it the domain is n from 1 to 6

Question 2 (Right Panel)

<em><u>Question A</u></em>

The equation for the table is f(x) = 3x - 3 which was derived simply by putting all three points into y = ax + b and solving.

  • f(0) = ax + b
  • -3 = a*0) + b
  • b = - 3
  • So far what you have is
  • f(x) = ax - 3
  • f(-1) = a*(-1) - 3           but we know (f(-1)) = -6
  • - 6 = a(-1) - 3             add 3 to both sides
  • -6 +3 = a(-1) -3 + 3
  • -3 = a*(-1)                  Divide by - 1
  • a = 3
  • f(x) = 3x - 3               Answer for f(x)
  • The slope of f(x) = the coefficient in front of the x
  • f(x) has a slope of 3
  • g(x) has a slope of 4

<em><u>Part B</u></em>

  • f(x) has a y intercept of - 3
  • g(x) has a y intercept of -5
  • f(x) has the greater y intercept.
  • -3 > - 5
7 0
3 years ago
Caroline puts $400 into a savings account that earns 6% annually. Write a function that represents this situation, where t is th
DaniilM [7]

Answer: 19 years

Step-by-step explanation:

Given

Amount invested \$400

Rate of interest R=6\%

after 1-year amount becomes

A=400\left (1+6\%\right)\\A=400\left (1+0.06\right)\\A=400\times 1.06\\A=\$424

After n years it is

A=400\left (1.06\right)^n

Sum accumulated is \$1200

\Rightarrow 1200=400\left(1.06\right)^n\\\Rightarrow 3=\left(1.06\right)^n\\\text{Taking log both sides}\\\Rightarrow n=\dfrac{\ln 3}{\ln 1.06}\\\\\Rightarrow n=18.85\approx 19\ \text{years}

5 0
3 years ago
The area of a rectangle that has a length of 10 and a width of w.
alexdok [17]

Answer:

B

Step-by-step explanation:

To find the area, multiply length by width (lw, or l×w). If the length is 10, that just leaves the width, which is unknown. We can substitute 10 for l, which leaves us with 10w.

8 0
2 years ago
What is it then please
nalin [4]

a) because the denominators are the same add the numerators:

1 1/5 + 3 2/5 = 4 3/5

b) rewrite the fractions to have a common denominator:

1/2 = 3/6

1/3 = 2/6

Now subtract:

4 3/6 - 1 2/6 = 3 1/6

6 0
2 years ago
Read 2 more answers
Write two equivalent expressions to represent the sum of the angles of this triangle.
trasher [3.6K]

Answer:

I am only answering so the next person to answer can get brainlyiest.

Step-by-step explanation:

Have a good day!

5 0
2 years ago
Other questions:
  • Add reduce the sum to the lowest terms whenever possible 27 1/5 + 2/6
    15·1 answer
  • You mix the letters below throughlyFind the odds in a favor of a drawing a consonant. F R A C T I O N
    10·1 answer
  • What is 5/6 times 120 =
    10·1 answer
  • What number equals 100 when squared?
    13·2 answers
  • Can someone help me with this <br>9/10 ÷2/5
    11·2 answers
  • On a recent homework assignment, Eli needed to solve the equation
    13·1 answer
  • 8 and 11/100 into a mixed number and a decimal
    8·1 answer
  • What is the slope of a line that is perpendicular to the line<br> whose equation is y = 4x + 1?
    6·2 answers
  • HEL ME PLEEAASSEE AMIGO PLEEAASSEE or amiga
    14·1 answer
  • Guided Practice
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!