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
Nookie1986 [14]
3 years ago
12

You have a grade of 85 & 90

Mathematics
2 answers:
faltersainse [42]3 years ago
7 0

Answer:

You need to get a 95 on the next test to have a 90 grade average.

Step-by-step explanation:

(85 + 90 + n)/3 = 90

<u>Step 1:  Multiply both sides by 3</u>

(85 + 90 + n)/3 * 3 = 90 * 3

85 + 90 + n = 270

<u>Step 2:  Subtract 85 from both sides</u>

85 + 90 + n - 85 = 270 - 85

90 + n - 90 = 185 - 90

n = 95

Answer:  You need to get a 95 on the next test to have a 90 grade average.

pishuonlain [190]3 years ago
4 0

Answer:

95

Step-by-step explanation:

Average: 90

(85+90+X)/3 = 90

(175 + X) = 90×3

175 + X = 270

X = 95

You might be interested in
Giving brainliest to the answer who gives step by step examples clearly!
Anarel [89]

<em>Hi there!</em>

<em>This should be easy,lol!</em>

<em>Answer:</em>

<em />\sqrt[3]{-128} = \boxed{-128 \sqrt{3} }<em> (Decimal: -221.702503)</em>

<em />\sqrt[3]{162} = \boxed{162 \sqrt{3} }<em> (Decimal: 280.592231)</em>

<em />\sqrt[3]{-1000x^4} = \boxed{-1732.050808x^4}<em />

<em>Sorry bout the explanation thingy. Their really long -.-!</em>

<em>But the last one is short so i'll put it for you!</em>

<em>Step-by-step explanation:</em>

<em>∴!For the last one!∴</em>

<em />\sqrt[3]{-1000x^4}<em />

<em>Simplifies to:</em>

<em />= - 1732.050808 * x^4<em />

<em />= - 1732.050808 * ( x * x * x * x)<em> </em>

<em />= - 1732.050808x^4<em />

<em>Have a great day/night!</em>

7 0
3 years ago
Read 2 more answers
Question: What is the complementary angel of 31 degrees? <br><br> A.97<br> B.67<br> C.57 <br> D.87
Alona [7]
The complement of 31° is the angle that when added to 31° forms a right angle (90° ).
6 0
3 years ago
Translate the sentence into an equation: <br> the sum of a number divided by 7 and 9 equals 3
ludmilkaskok [199]
X/7 + 9 = 3
a number: x
a number divided by 7: x/7
sum of number divided by 7 and 9: x/7 + 9 (and means plus)
equals 3: x/7 + 9 = 3
3 0
3 years ago
WILL GIVE BRAINLEIST !!
MA_775_DIABLO [31]
Answer = (7p) + (7q) + 63
7 0
2 years ago
Read 2 more answers
A drink is mixed in the ratio
Contact [7]

Answer:

3

Step-by-step explanation:

 Drink mix ratio:

        Lemonade   :    Orange      :     Cranberry

                 6           :          3          :          C

  Fraction  of Cranberry juice  = \frac{3}{12}

Sum of the ratio = 6 + 3 + C  = 9 + C

   Fraction of Cranberry;

                \frac{C}{9 + C}   = \frac{3}{12}

               3(9 + C)  = 12C

               27 + 3C  = 12C

               27  = 12C - 3C

                9C  = 27

                   C = 3

The missing number will be 3

4 0
3 years ago
Other questions:
  • For a food drive, Jack collected three cans of food of eight neighbors.His goal is thirty cans of food. How many more cans does
    7·2 answers
  • I need help is it A b c or d
    5·2 answers
  • The difference of two rational numbers is always negative true or false
    7·1 answer
  • Evaluate sigma notation k=0 4 3k + 1
    8·1 answer
  • Can some explain this
    8·1 answer
  • plz help!!!!!Mia creates a box plot using 28, 34, 40, 24, 44, 49, and 32 as the data. Which of the following box plots shows the
    8·1 answer
  • Anyone help pls, IMPORTANT!!!!!! Will give the brainiest. Thank you
    9·2 answers
  • Decide whether the two inequalities are equivalent. Explain.
    12·1 answer
  • Multiply and write in standard form:<br> (2x + 1)(5x - 2)<br> Show all work for full credit.
    10·1 answer
  • How can you create an equivalent equation that looks different than the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!