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
loris [4]
3 years ago
7

Isaiah is saving money every week. Isaiah started with $14 and ​added $20 every week. Find the rate of change.

Mathematics
2 answers:
Evgesh-ka [11]3 years ago
5 0

Answer:

$20

Step-by-step explanation:

liubo4ka [24]3 years ago
3 0

Answer:

42.86%

Step-by-step explanation:

Rate of change = (change in amount saved / amount first saved) x 100

change in amount saved = $20 - $14 = $6

($6/$14) x 100 = 0.428571 = 42.86%

You might be interested in
Find the value of x (really need help with this)
qwelly [4]

Answer:

x=-7

Step-by-step explanation:

The sum of the angles of a triangle are 180 degrees

40 + x+57 + 90 =180

Combine like terms

187 +x = 180

Subtract 187 from each side

187-187 +x = 180-187

x = -7

4 0
3 years ago
If a = √3-√11 and b = 1 /a, then find a² - b²​
Serga [27]

If b=\frac1a, then by rationalizing the denominator we can rewrite

b = \dfrac1{\sqrt3-\sqrt{11}} \times \dfrac{\sqrt3+\sqrt{11}}{\sqrt3+\sqrt{11}} = \dfrac{\sqrt3+\sqrt{11}}{\left(\sqrt3\right)^2-\left(\sqrt{11}\right)^2} = -\dfrac{\sqrt3+\sqrt{11}}8

Now,

a^2 - b^2 = (a-b) (a+b)

and

a - b = \sqrt3 - \sqrt{11} + \dfrac{\sqrt3 + \sqrt{11}}8 = \dfrac{9\sqrt3 - 7\sqrt{11}}8

a + b = \sqrt3 - \sqrt{11} - \dfrac{\sqrt3 + \sqrt{11}}8 = \dfrac{7\sqrt3 - 9\sqrt{11}}8

\implies a^2 - b^2 = \dfrac{\left(9\sqrt3 - 7\sqrt{11}\right) \left(7\sqrt3 - 9\sqrt{11}\right)}{64} = \boxed{\dfrac{441 - 65\sqrt{33}}{32}}

5 0
2 years ago
Natsumi opens a savings account that earns 0.08% interest on the last day of the month. Her initial deposit is $75 on the first
Nitella [24]

Because she doesn't receive any interest on the last month, but puts money in, we can write this equation:

18(75) + 17(0.08(75))

1350 + 1.36(75)

1350 + 102

She will have $1452 On the eighteenth month

6 0
4 years ago
100 points! Please help ASAP! Look at the picture attached. I will mark brainliest. Random answers will be reported
dalvyx [7]

we know that property of in center we get

DW = FW = EW

compare the equations and solve for x:

DW = FW

7x - 13 = 15x - 37

15x - 7x = 37 - 13

8x = 24

x=24/8

x = 3

now

DW = 7x - 13 = 7×3 - 13 = 8 units

The measure of WE is same as DW=WE = 8 units

8 0
3 years ago
Share 13 ones with 2 groups. How many ones are in each group
Yuki888 [10]

Answer:

6.5

Step-by-step explanation:

13 divided by 2 = 6.5

7 0
3 years ago
Other questions:
  • Ms. Ramos thumb measures 4 centimeters. Express this length in meters
    14·2 answers
  • WILL GIVE BRAINLIEST!!
    5·1 answer
  • -12=-2(2-8) <br> Is it true false or an open sentence
    7·2 answers
  • Cole had 3/4 of an hour of free time before dinner he spent 2/3 of that time playing the guitar how long did he play the guitar
    11·2 answers
  • Question 8 (1 point)
    13·1 answer
  • What is an equation of the line that passes through the point (-3, -7) and is
    6·1 answer
  • 28= -2u<br> u= ?<br> Basically, U equals what?
    15·1 answer
  • Express them in scientific notation<br>a) 5700. b) 0.00643​
    5·1 answer
  • Help asap
    8·1 answer
  • What is the correct order of steps for bisecting angle ABC?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!