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
Molodets [167]
2 years ago
12

Mark the sum as either positive or negative

Mathematics
2 answers:
tester [92]2 years ago
6 0

Answer:

1: Positive

2: Negative

3: Negative

4: Negative

Step-by-step explanation:

Positive plus Negative equals negative.

Positive plus positive or negative plus negative equals positive.

Hope this helps.

kicyunya [14]2 years ago
3 0

Step-by-step explanation:

-8+(-9) = -17  <--- Negative    If they are both negative, then you do the simple math part and then add the negative sign

7+(-3) = 4  <---- Positive    If there are only one negative, then you get rid of the '+' and then the equation turns into 7-3. You would do the simple math.

5+(-12) = -7 <----- Negative.    Here, there is only one negative sign but the negative number is greater than the positive number. So, you would do the math 5-12 and use the negative sign.

-12+5 = -7 <----- Negative   Look at the one above this.

You might be interested in
Anybody know where the fractions go?
Nikolay [14]
Wish i could help :(
8 0
3 years ago
Star Time:7:30 A.M Elapsed Time:2 hours, 20 minutes End Time is​
Nesterboy [21]

Answer:

9:50 A.M.!

Step-by-step explanation:

7 HRS +2 HRS = 9 HRS

30 MINS + 20 MINS = 50 MINS

3 0
2 years ago
B Christian installed an electric pump to pump water from a borehole into a 30 000 litre cement dam. If the water is pumped at a
skelet666 [1.2K]

Given the amount of water needed to fill the cement dam and the water pump rate, the time needed to fill the dam is 400 minutes or 6hours 40minutes.

Option B)6h 40min is the correct answer.

<h3>How long does it take to fill the dam?</h3>

Given that;

  • Amount of water needed to fill the dam A = 30000 litres
  • Pump rate r = 75 litres per minute
  • Time needed to fill the dam T = ?

To determine how long it take to fill the dam, we say;

Time need = Amount of water needed ÷ Pump rate

T = A ÷ r

T = 30000 litres ÷ 75 litres/minute

T = 400 minutes

Note that; 60min = 1hrs

Hence,

T = 6hours 40minutes

Given the amount of water needed to fill the cement dam and the water pump rate, the time needed to fill the dam is 400 minutes or 6hours 40minutes.

Option B)6h 40min is the correct answer.

Learn more word problems here: brainly.com/question/2610134

#SPJ1

8 0
2 years ago
If 2 fligs make a flog and 3 flogs make a flug, how many fligs in 12 flugs?
tankabanditka [31]

Answer:

There are 72 fligs in 12 flugs

4 0
3 years ago
gabriella wants to tile a room with an area of 320 square feet. the width of the room is 4/5 its length. what are the length and
Salsk061 [2.6K]
Assuming the shape of the room is a rectangle :

Area = Width x Length.

Let's call width "w" and length "l" . Now if, the width is 4/5 of the length that means 4/5 times length gives us the width, like this :

w=\frac { 4 }{ 5 } \cdot l

As given in the question, area of the rectangle is 320 square feet. And as I said before area of a rectangle can be found by multiplying its length and width. 

w.l=320

w=\frac { 4 }{ 5 } \cdot l , we can plug w's value in the previous equation to find "l". 

\frac { 4 }{ 5 } \cdot l\cdot l=320\\ \\ \frac { 4 }{ 5 } \cdot { l }^{ 2 }=320\\ \\ { l }^{ 2 }=320\cdot \frac { 5 }{ 4 } \\ \\ { l }^{ 2 }=\frac { 320\cdot 5 }{ 4 } \\ \\ { l }^{ 2 }=\frac { 1600 }{ 4 } \\ \\ { l }^{ 2 }=400\\ \\ \sqrt { { l }^{ 2 } } =\sqrt { 400 } \\ \\ l=20

Let's plug "l"s value in the equation.

w.l=320\quad \Longrightarrow \quad w\cdot 20=320\quad \Longrightarrow \quad w=\frac { 320 }{ 20 } \quad \Longrightarrow \quad w=16

The length is 20 feet and the width is 16 feet.


6 0
3 years ago
Read 2 more answers
Other questions:
  • 7. Given the vertices of ∆ABC are A (2,-5), B (-4,6) and C (3,1), find the vertices following each of the transformations FROM T
    10·1 answer
  • The image below shows where coal deposits are found in the United States. Explain how these coal deposits are energy sinks and c
    14·1 answer
  • What is the sum of the polynomials?
    14·1 answer
  • Liz works at a movie theater. Her hourly wage increased from $14.50 to $18 and hour. What was the percent of increase in her hou
    15·2 answers
  • X 0 1 2 3 4 <br> y -2 -1 2 7 ? <br> What is the missing term?
    8·1 answer
  • I will give brianly just help me
    11·1 answer
  • WILL MARK BRAINLIEST FOR BOTH QUESTIONS AND DOUBLE POINTS INLY HAVE 6 MINUTES
    14·2 answers
  • If 2/3 is multiplied by a fraction greater than 1, which of these could be the product?
    7·1 answer
  • A penny is tossed and a number cube is rolled. determine each probability.
    5·1 answer
  • What is the slope of<br> the line?<br><br> Give your answer as<br> a fraction in simplest<br> form.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!