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
Ket [755]
4 years ago
8

Amaya's test scores in Algebra 1 are 78 and 91. She has one more test left and wants to earn a B for the course, which is from 8

0-89 inclusive. Write a compound inequality to represent the situation
Mathematics
1 answer:
ICE Princess25 [194]4 years ago
3 0
Let x be the score Amaya gets on the final test. She wants her average of all 3 tests to be between 80 and 89: 

<span>80 ≤ (78 + 91 + x) / 3 ≤ 89 </span>

<span>Multiply everything by 3: </span>
<span>240 ≤ 78 + 91 + x ≤ 267 </span>
<span>240 ≤ 169 + x ≤ 267 </span>

<span>Subtract 169 from everything: </span>
<span>240 - 169 ≤ x ≤ 267 - 169 </span>
<span>71 ≤ x ≤ 98 </span>

<span>Answer: </span>
<span>She needs to score between 71 and 98 to get a B for the course.</span>
You might be interested in
Misha and her cousin Darius made muffins for the Clark family reunion. Misha made 17 more muffins than Darius. Dark is made 56 m
VMariaS [17]

Answer:

Number of muffins per plate.  

Step-by-step explanation:

We are given the following in the question:

Let x be the number of muffins made by Dark

Then, number of muffins made by Misha =

x + 17

For x  = 56

Muffins made by Dark = x = 56

Muffins made by Misha =

x + 17 = 56 + 17 = 73

Total number of muffins =

56 + 73 = 129

Total  number of plates = 12

Number of muffins on each plate =

=\dfrac{\text{Total number of muffins}}{\text{Total number of plates}}=\dfrac{129}{12} = 10.75\approx 11

Thus, there were approximately 11 muffins on each plate.

Thus, the unit of this problem is number of muffins per plate.

6 0
3 years ago
will mark brainliest for the correct answer! just read the english, okay? the other language is the translation for the english.
kkurt [141]

Answer:

Step-by-step explanation:

Given equation is,

y = 3x² - 6x + 11

a). y = 3x² - 6x + 11

       = 3(x² - 2x) + 11

       = 3(x² -2x + 1 - 1) + 11

       = 3(x² - 2x + 1) - 3 + 11

       = 3(x - 1)² + 8

Comparing this equation with y = a(x - b)² + c

a = 3, b = 1 and c = 8

b). For minimum value of x,

    Since, vertex of the graph is given by (b, c),

    Minimum value of x will be,

    x = b

    x = 1

c). Vertex of the parabola → (b, c)

                                           → (1, 8)

    For y-intercept,

    By substituting x = 0 in the equation,

    y = 3(0 - 1)² + 8

    y = 11

Now we can sketch the graph by using the table of input - output values.

x         -2        -1           0            1             2          3

y        35        20         11           8            11         20  

8 0
3 years ago
What is the total length of the beads that are<br> inch long?<br> 6
Ipatiy [6.2K]

Answer:

6 inches

Step-by-step explanation:

IF there are 6 beads in total, that are 1 inch each, 6 x 1 would be 6, therefore its 6 inches

7 0
2 years ago
39kg 756g + 52kg 670g​
monitta

Answer:

1517g or 1.517kg

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
3. + (-2) + (-24 )
OleMash [197]

Answer:

\huge{ \boxed{ \bold{ \sf{ - 26}}}}

<h3>☄ Question : Simplify</h3>
  • \sf{ + ( - 2) + ( - 24)}
<h3>☄ Step - by - step explanation : </h3>
  • \sf{ + ( - 2) + ( - 24)}

Remember : \sf{( + ) \times ( - ) = ( - )}

\dashrightarrow{ \sf{ - 2 - 24}}

Remember : The negative integers are always added but posses the negative ( - ) sign.

\dashrightarrow{ \boxed{ \sf{ - 26}}}

--------------------------------------------------------------

<h3>† Remember :</h3>

✒ Sign rules of addition and subtraction of integers :

  • The positive integers are always added but posses the positive ( + ) sign.
  • The negative integers are always added but posses the negative ( - ) sign.
  • The negative and positive integers are always subtracted but posses the sign of the bigger integer.

✒ Sign rules of multiplication and division :

  • \sf{( + ) \times ( + ) = ( + )}
  • \sf{( + ) \times ( - ) = ( - )}
  • \sf{(  -  ) \times ( + ) = ( - ) }
  • \sf{( - )  \times ( - ) = ( + ) }

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

Hope I helped!

Have a wonderful time ! ツ

4 0
3 years ago
Other questions:
  • Is this a function or no?
    11·2 answers
  • What is the value Of this
    13·1 answer
  • What is the explicit formula for the sequence: 18, 11, 4, -3?
    14·1 answer
  • Adam can paint 38 feet of fence per hour. How many yards of fence can he paint per hour? 12 yards per hour 456 yards per hour 11
    11·2 answers
  • If y= x+3/6-x, what is the value of y when x =7i?
    12·2 answers
  • OMG IMMA FAILLLLLLLLLLLLLLLLLL
    8·2 answers
  • begin by dividing 2/3 by 4 then add 1/4 to result multiply that result by 72 divide that result by 1/6
    8·1 answer
  • Brady has a card collection with 32 baseball cards, 64 baseball cards, and 24 baseball cards. He wants to arrange the cards in e
    12·1 answer
  • Two people wrote a book together. They agreed to share the royalties so that the senior author received twice as much as the
    7·2 answers
  • Which of the following is NOT an equation?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!