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
Ainat [17]
2 years ago
9

Solve for the variables and show work please

Mathematics
1 answer:
olga nikolaevna [1]2 years ago
7 0

Answer:

e=30

k=15/2

h=90

Step-by-step explanation:

3e=60

e=30

30+4k=60

4k=30

k=15/2

15/2+2h=30

2h=45/2

h=90

You might be interested in
Using the rules of exponents to evaluate or simplify. write without negative exponents. 1/4^-2​
jekas [21]
16 or 4^2

This is really saying is 1/(1/4^2)
3 0
3 years ago
Introduction to addition or subtraction of fractions with different denominator 3/4-1/8
snow_lady [41]
The denominator must be the same, so just think of the LEAST COMMON MULTIPLE, The LCM here is 8, because you can multiply 4 by 2 to get 8.
so when you multiply, you multiply both on the top and on the bottom, so this would be:
3 x 2 / 4 x 2 = 6 / 8
Now you can add or subtract: 6/8 - 1/8 = 5/8
7 0
3 years ago
Explain how to construct a perpendicular bisector. <br><br> ?
inysia [295]
Open the compass it is more than half of the distance between a and b, and scribes arcs of the same radius centered at a and b. call the two points where these two arcs meet c and d. Draw the line between c and d. CD it is the perpendicular bisector of the line segment AB. call the point where CD intersects AB and E
8 0
3 years ago
Read 2 more answers
Please help :)
slava [35]
For a system of equations such as this, add both of the equations together. The d values will cancel each other out, making 2e=-4. This means that e=-2. If you plug this into one of the equations, you will have d + (-2) = 1. Isolate the variable by adding -2 to both sides: d=3. Written in the format described above (d,e), your answer is (3, -2).
6 0
3 years ago
$7000 is compounded semiannually at a rate of 11% for 21years Find the total amount and round to the nearest cent
photoshop1234 [79]

\text{Given that }\$7000 \text{ is compounded semiannualy at a rate of }11\% \text{ for 21 years}\\&#10;\\&#10;\text{we know that the amount after t year when compounded is given by}\\&#10;\\&#10;A=P\left ( 1+\frac{r}{n} \right )^{nt}\\&#10;\\&#10;\text{here P is the principal amoount, so }P=7000,\\&#10;\\&#10;\text{r is the interest rate, }r=11\%=0.11\\&#10;\\&#10;\text{n is the number of times in a year, here semiannulay, so }n=2,\\&#10;\\&#10;\text{and t is the time, so }t=21\\&#10;\\&#10;\text{so the amount after 21 years is}

A=7000\left ( 1+\frac{0.11}{2} \right )^{2(21)}\\&#10;\\&#10;\Rightarrow A=7000\left ( 1+0.055 \right )^{42}\\&#10;\\&#10;\Rightarrow A=7000\left ( 1.055 \right )^{42}\\&#10;\\&#10;\Rightarrow A\approx 66328.68

So the amount after 21 years is: $66328.68

7 0
3 years ago
Other questions:
  • Toby's Tiny Toys have fixed expenses of $53,900 for the production of their tiny toys. Toby's has a variable expense of $12.50 a
    14·1 answer
  • A school offers four extra curricular activities: band, yearbook, basketball, and art. If two students choose randomly, what is
    12·1 answer
  • Rectangular Garden
    5·1 answer
  • Rewrite 8^-12 isIng a positive exponent
    15·2 answers
  • The graphs of f(x) and g(x) are shown below:
    6·1 answer
  • There are 131 students at a small school and 35 of them are freshmen. What fraction of the students are freshmen?
    9·1 answer
  • Write your answer in simplest radical form​
    15·1 answer
  • Simplify:<br> 4(4y-7y^{2})-9(5y+2)
    6·1 answer
  • Plsss somone help me plsssszzz
    5·2 answers
  • A) by AA similarity
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!