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
zavuch27 [327]
3 years ago
11

Is Frieda’s work correct? Explain how she can check her solution.

Mathematics
2 answers:
lyudmila [28]3 years ago
7 0

Answer:

Frieda's work is correct.

Step-by-step explanation:

z+22= 64 can also be z= 64-22

64-22= 42

Meaning, z= 42

42+22-22= 64-22

42= 42

Mandarinka [93]3 years ago
3 0

Answer:

by substitution

Step-by-step explanation:

To check if the solution to an equation is valid

Substitute the solution into the equation and if both sides agree then the solution is correct.

left side = z + 22 = 42 + 22 = 64 = right side

Hence z = 42 is the correct solution

You might be interested in
The river family invested $4300 in a certificate of deposit (cd). The rate of interest is 2.8% compounded yearly. Give the value
alexgriva [62]

Answer:

$722.40

Step-by-step explanation:

2.8% x 4300 = 120.4

120.4 x 6 = 722.40

7 0
4 years ago
Read 2 more answers
pleeeeeeeeeeeease hellllllllp meeeeeee the circle has a center of 0.its raduis is 3 cm,and the central angle A measures 100.what
Vsevolod [243]

Answer:

2.5 pi

Step-by-step explanation:

Comment

If you were trying to get the area of a whole circle, you would use

Area = pi r^2

You have to modify the formula to show that just part of the circle has an area that you are interested in.

The new formula is

Area = (theta/360) pi r^2

Givens

r = 30 cm

theta = 100

Solution

Area = (100 / 360) * pi * r^2       Substitute the givens into this formula

Area = (5 / 18) * pi * 3^2              Expand

Area = (5 / 18) * pi * 9                  Cancel 9 into 18

Area = 5/2 * pi

Area = 2.5 * pi

7 0
2 years ago
Please show your work, Due at 11:30. Please help!!!
Sophie [7]

Answer:

1. 3217

x       56

_____________

19302

160850

__________

108152

2. 5690

x       27

_________

39830

113800

_________

153630

3. 213

      43

___________

639

8520

________

9159

Step-by-step explanation:

4 0
4 years ago
IF CORRECT ILL MARK U BRAINLIEST❤️
natulia [17]

Answer:

Step-by-step explanation:

y/x = 12/4 = 3

5 0
3 years ago
Read 2 more answers
The number of wolves in a wildlife preserve is estimated to have increased continually by 3% per year. If the population is now
34kurt
For the answer to the question above, <span>Well, first let us put up a functional equation. </span>
<span>Since this is an exponential function, it'll be: f(t)=54,000*1.03^t </span>
<span>But we want to know how many wolves there were 10 years ago. </span>
<span>For that, we simply "turn time around", as in: f(t)=54,00*1.03^-t </span>
<span>This displays a decreasing number of wolves, as you turn back time. </span>

<span>Now we simply calculate 54,000*1.03^-10 </span>
<span>which is approximately 40,200?</span>
5 0
4 years ago
Other questions:
  • Please please please help help
    9·1 answer
  • Which phrase best describes f(x), graphed on the coordinate plane below? On a coordinate plane, a curve goes through two cycles.
    5·2 answers
  • Explain how you got the answer(:
    5·2 answers
  • Assume that the function call operator() is overloaded for data type String in the usual sense of selecting a substring from a l
    10·1 answer
  • In the past month, Heather rented 6 video games and 3 DVDs. The rental price for each video game was $2.80 . The rental price fo
    5·1 answer
  • Giving extra points and brainliest
    7·1 answer
  • A box of cereal states that there are 87 calories in a 3​-4cup serving. What is the unit rate for calories per​ cup? How many ca
    5·1 answer
  • Show your solution follow the steps need an answer, please need an answer, please.​
    8·1 answer
  • If x = 7, what is the value of 3 times x²​
    7·1 answer
  • The perimeter of the rectangle below is 168 units. Find the length of side AB.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!