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
slega [8]
3 years ago
9

Susie scored 85, 84,and 78 on three of the four math tests. if her average score for the four tests was 86. what was her score o

n the fourth test?
Mathematics
2 answers:
nata0808 [166]3 years ago
7 0
(85 + 84 + 78 + x) / 4 = 86
(247 + x) / 4 = 86
247 + x = 86 * 4
247 + x = 344
x = 344 - 247
x = 97 <=== her score was 97
Karolina [17]3 years ago
6 0
Susie's average score was 86 so if you take 86 x 4 it would equal 344 which is her total points scored on the four tests. Take the total 344 - 85 = 259; then 259  - 84 = 175; then 175 - 78 = 97. The 97 is Susie's fourth test score because when you combine the four individual test scores you get 344. Take 344 and divide it by 4 and you will 86 which was her average score. Fourth test is 97.
You might be interested in
Is having a multiplication sign outside the parentheses the same as not?
katrin2010 [14]
I believe it's the same
8 0
3 years ago
Read 2 more answers
Is it a function or not a function? Please help me??
blagie [28]

Answer:

function

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Sally either walks, cycles or drives to work. She walks about 15% of the time and drives about 3/5 of the time. What percentage
goblinko [34]

Answer: She cycles 25% of the time

Step-by-step explanation:

From the question, Sally walks 15% of the time.

She drives 3/5 of the time.

We then convert 3/5 to percentage.

Converting to percentage means multiplying by a factor of 100.

Hence, Sally drives 3/5*100 = 60% of the time.

If Sally walks 15% of the time and drives 60% of the time, adding up the percentage time used by these two media of transportation will give us

60% + 15% = 75%

Hence if she cycles for the remainder of the time, expressing it as percentage would mean subtracting the time used in other means by 100%

Hence it will be 100% - 75% = 25%

8 0
3 years ago
1296 ÷ 48 help me please
Elan Coil [88]
The answer in 27 $$$$$$$$$$$$$$$$$$$$$$$$
7 0
3 years ago
Read 2 more answers
Complete the solution of the equation. find the value of y when x equals -8 <br> 8x+8y=-48
Korvikt [17]
<span>8x + 8y = -48
-------------------------
Plug in -8 for x
(8) (-8) + 8y = -48
-------------------------------
Simplify
</span><span><span><span>(8) </span><span>(<span>−8</span>) </span></span>+ <span>8y </span></span>= <span>−<span>48
</span></span><span><span>−64 </span>+ <span>8y </span></span>= <span>−<span>48
</span></span><span><span>8y </span>− 64 </span>= <span>−<span>48
</span></span>-----------------------------------------
Add 64 to each side
<span><span><span>8y </span>− 64 </span>+ 64 </span>= <span><span>−48 </span>+ 64
</span><span>8y </span>= <span>16
</span>---------------------------------------------------
Finally, divide each side by 8
8y ÷ 8 = 16 ÷ 8
y = <span>2
</span>----------------------------------------------------------------
y = 2 is your answer
4 0
3 years ago
Other questions:
  • Divide 260 in to the ratio of 1:3
    13·2 answers
  • How many outfits can you get from 5 suits, 7 shirts, 4 ties and 6 hats
    7·1 answer
  • Please HELP ME!!! Write an equation and solve it the answer choices are down below thank you!!!
    8·1 answer
  • Julio sold candles for three weeks. Let x represent the number of candles he sold the first week. He sold twice the number of ca
    15·1 answer
  • Convert the following: 143 oz = g = kg
    7·1 answer
  • What is the solution to this inequality ? <br><br><br> 12x &gt; 5 (x-2)
    13·1 answer
  • Write and equati9n of a l8ne that passes through (1,-2) and is perpendicular to -4x+7y=21
    11·1 answer
  • VERY EASY, WILL GIVE 50 POINTS FOR CORRECT ANSWER ASAP AND WILL GIVE BRAINLIEST.
    9·2 answers
  • Which of the following is true? there is a phase shift to the left. there is a phase shift to the right. the graph is reflected
    5·1 answer
  • Discuss the order of operations to explain why the expressions [(12÷(2+ 2)] ^3 and (12 ÷ 2) + 2^3 do not havethe same value.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!