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
Andrei [34K]
4 years ago
14

Briana predicts that she will get 34 questions correct on the test. She actually gets 39 correct. How could she calculate her pe

rcentage error?

Mathematics
2 answers:
Semmy [17]4 years ago
7 0

Answer:

hi

Step-by-step explanation:

hi

sp2606 [1]4 years ago
3 0
Sent a picture of the solution to the problem (s).

You might be interested in
For the given word problem, identify the rate of change. Gasoline at a particular gas station costs $2.78 per gallon. If Cory bu
zhenek [66]

Answer:

Cory bought 6.47 gallons

rate of change is $2.78 per gallon

Step-by-step explanation:

cost of gas per gallon = $2.78

it means that if one buy 1 gallon he will have to pay $2.78 and similary for each increase in 1 gallon of gallon gas he will have to pay $2.78.

Thus, rate of change is cost of gas per gallon as cost to buy gas changes with the change in quantity of gallon.

Let the quantity of gas bought be x gallon.

Total cost for x gallons = cost of gas per gallon*x = 2.78x

Given that total money paid by him is $18

2.78x = 18

x = 18/2.78 = 6.47

Thus, Cory bought 6.47 gallons

rate of change is $2.78 per gallon

4 0
4 years ago
How do you do this Problem using factoring (fx)=4x^2-25?
Yanka [14]

Answer: (2x+5)(2x−5)

Step-by-step explanation:For me, what i like to do is to try divide the problem into two parts. For example in this problem, you would divide the 4x^2 into two 4x(since 4x+4x = 4x^2). Then 25 can be divide into into 5s (5x5=25). SInce you know that its a negative 25, you know that it has to be a negative on one of the sides. So the answer in factor form is (2x+5)(2x−5)

5 0
4 years ago
I could use a little help with this one. i'm rusty.<br> -3(x+2)-7 = 5x + 7
Pie

Answer:

-3(x+2)-7 = 5x + 7

-3x - 6 - 7 = 5x + 7

-3x - 13 = 5x + 7

-20 = 8x

x = -2.5

7 0
3 years ago
Read 2 more answers
Zoe used 3/8 of her ribbon to wrap a present. If she uses 9 feet of ribbon for the present how much ribbon did Zoe have it first
MArishka [77]

Let the total ribbon Zoe had was x feet.

Out of x feet, she used 3/8 part of it.

Hence, \frac{3x}{8}

3/8 part of the original ribbon is equal to 9 feet.

Hence, we get

\frac{3x}{8} = 9

=> Multiply 8 on both sides.

3x=72

Divide both sides by 3

\frac{3x}{3}=\frac{72}{3}

x=24 ft

Zoe had 24 feet of ribbon in starting... Answer

8 0
3 years ago
£730 is divided between June, Sushil &amp; Fiona so that June gets twice as much as Sushil, and Sushil gets three times as much
olga2289 [7]

Answer:

idk mush

Step-by-step explanation:

i dont have a clue

3 0
3 years ago
Read 2 more answers
Other questions:
  • a teacher wants to know how much she can predict a student reading level in a given school district. the table shows the grade a
    5·1 answer
  • Five times a number k minus 9 is two thirds of a number j. solve for j
    5·1 answer
  • Evaluate each expression.<br> 1) 3(6+7)
    9·1 answer
  • The surface area, S, of a sphere of radius r feet is S = S(r) = 4πr2. Find the instantaneous rate of change of the surface area
    12·1 answer
  • What is 5/6 as a decimal​
    11·2 answers
  • theo wants to use a cookie recipe that makes 36 cookies but he wants to reduce the numbers of cookies to 24. if the recipe speci
    5·2 answers
  • |-2y+6|=6 please show the steps involved!!!
    8·2 answers
  • The following table shows the length and width of two rectangles:
    8·1 answer
  • A concession stand charges $2.50 for a bag of popcorn. The stand has already sold 30 bags of popcorn. How many more bags x of po
    8·1 answer
  • Alexa and Daniel , two students of middle school together collected $20 from the students for annual function of their school .
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!