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
jarptica [38.1K]
3 years ago
8

3/4 + -3/8 + -1/4=? Evaluate the expression

Mathematics
1 answer:
Ann [662]3 years ago
8 0

Answer: -1/8

Step-by-step explanation:

3/4 + -3/8 + -1/4

Find the LCM of 4, 8, and 4

That's 8 so you make an equivalent fraction for all fractions so the denominator is 8.

3/4 = 6/8

-3/8 = -3/8

-1/4 = -4/8

Now the expression looks like this:

6/8 + - 3/8 + -4/8

6/8 - 3/8 - 4/8

6/8 - 7/8

-1/8

Hope that helped!

You might be interested in
At the fair,Kate found a strange machine with a sign on it labeled, enter a number. When she pushed the number 15, the machine d
Ivan

apparently subtracting 6

15-6=9

23-6=17

100-6=94

77-6=71

6 0
3 years ago
I need help with 12, 13, 14, and 15
frutty [35]
Number 12 what do you think we do first
6 0
3 years ago
. Jordyn can swim 4/5 mile in 1/3 hour. How far can she swim in 1 hour?
Blizzard [7]

Answer:

2.4 miles

Step-by-step explanation:

This is a simple ratio problem.

Jordyn swims 4/5 mile in 1/3rd hour. So how many miles will they go in 1 hour? Let that be x:

That is 12/5 miles or 2  2/5 miles

In decimal, that's 2.4 miles

4 0
3 years ago
Read 2 more answers
The Happy-Go-Lucky Beach was 163 feet long from parking lot to high tide. After last year's hurricane came ashore, the beach onl
ANTONII [103]

Answer:

About 5.5% decrease

Step-by-step explanation:

Here, we want to calculate the percentage increase or decrease and its value.

The first thing to do here is to check if we are going to have a decrease or an increase.

since the value before the change is higher than the value after the change, then what we have is a decrease.

Mathematically, the percentage decrease is calculated as follows;

% decrease = (old value - new value)/old value * 100%

old value = 163 feet

new value = 154 feet

% decrease = (154-163)/163 * 100%

% decrease = -9/163 * 100%

% decrease = -5.52%

Thus the best answer is about 5.5% decrease

4 0
3 years ago
14(0.89)^x+4.5 =162
lisabon 2012 [21]
14(0.89)^{x + 4.5} = 162
\frac{14(0.89)^{x + 4.5}}{14} = \frac{162}{14}
0.89^{x + 4.5} = 11\frac{4}{7}
ln(0.89^{x + 4.5}) = ln(11\frac{4}{7})
(x + 4.5)ln(0.89) = ln(11\frac{4}{7})
\frac{(x + 4.5)ln(0.89)}{ln(0.89)} = \frac{ln(11\frac{4}{7})}{ln(0.89)}
x + 4.5 = -2101.14032500
x = 2105.64032500
3 0
3 years ago
Other questions:
  • Which answer is the largest? *<br> 10 points<br> -16 • 8 =<br> -16 ÷ 8 =<br> -16 + 8 =<br> -16 - 8 =
    13·2 answers
  • The end of a cave is 380 below
    15·1 answer
  • Similar triangles practice worksheet for problems 1-5 below identify if the triangles are similar or not
    14·1 answer
  • Can i have help soon please?
    13·1 answer
  • A statistics textbook chapter contains 60 exercises, 6 of which are essay questions. A student is assigned 10 problems. (a) What
    5·1 answer
  • What is the correct definition for cot theta?
    6·2 answers
  • Evaluate v(x) = 14-3x when x=-3, 0 and 4.
    15·2 answers
  • 22 gallons of gas cost $65.56. What is the unit rate for 1 gallon of gas?
    8·2 answers
  • Solve for x.<br> Your answer must be simplified.<br> -36 + X &lt; 8
    13·1 answer
  • 48,919 ÷ ? = 489.19<br> 489,190 ÷ 1,000 =?<br> 4,891,900 ÷ ? = 489.19<br> ? ÷ 100,000 = 489.19
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!