Mathematics Middle School

Simplify each expression involving signed numbers.


-7 – 2 =
12 + (-4) =
-8(-6) =

[tex]\frac{18}{-3}[/tex]=

Answers

Answer 1

Answer:

-7 - 2 = -9 (combine the numbers,simplify)

12 + (-4) = 8 (Simplify the Expression)

-8(-6) = 48 (Simplify the Expression)

18/-3 = -6 ( Simplify the Expression)

Hope this helps :)

Related Questions

Referring to the figure, find the area of the
circle shown. Round the answer to the nearest whole inch.

Answers

If its 21 inches then rounding to the nearest who should be 21 inches

4 3/5 + 5 1/2
Help me please and thank you

Answers

Answer:

Step-by-step explanation:

4 3/5 + 5 1/2= (10 1/10)

Step 1: Find the common multiple between the numbers, and simplify-

4 3/5=4 6/10 5 1/2= 5 5/10

Step 2: Convert to improper fractions-

4 6/10 as an improper fraction is 46/10 and 5 5/10 as an improper fraction is 55/10 (Formula for mixed numbers to improper fractions is denominator multiplied by whole number plus numerator)

Step 3: Add numerator of improper fractions, then add back denominator-

46+55=10 1 numerator:101 denominator:10 101/10

Step 4: Convert into mixed number-

101/10= 10 1/10

ANSWER: 10 1/10

Answer:

10.1

Step-by-step explanation:

Conversion a mixed number 4 3/

5

to a improper fraction: 4 3/5 = 4 3/

5

= 4 · 5 + 3/

5

= 20 + 3/

5

= 23/

5

To find a new numerator:

a) Multiply the whole number 4 by the denominator 5. Whole number 4 equally 4 * 5/

5

= 20/

5

b) Add the answer from previous step 20 to the numerator 3. New numerator is 20 + 3 = 23

c) Write a previous answer (new numerator 23) over the denominator 5.

Four and three fifths is twenty-three fifths

Conversion a mixed number 5 1/

2

to a improper fraction: 5 1/2 = 5 1/

2

= 5 · 2 + 1/

2

= 10 + 1/

2

= 11/

2

To find a new numerator:

a) Multiply the whole number 5 by the denominator 2. Whole number 5 equally 5 * 2/

2

= 10/

2

b) Add the answer from previous step 10 to the numerator 1. New numerator is 10 + 1 = 11

c) Write a previous answer (new numerator 11) over the denominator 2.

Five and one half is eleven halfs

Add: 23/

5

+ 11/

2

= 23 · 2/

5 · 2

+ 11 · 5/

2 · 5

= 46/

10

+ 55/

10

= 46 + 55/

10

= 10.1

Camilla has 8,160 silver beads and 2,880 black beads to make necklaces. Each necklace will contain 85 silver beads and 30 black beads.

How many necklaces can she make?

Answers

Answer:

192 neckaces

96 of each

Step-by-step explanation:

8160/85=96

2880/30=96

96+96= 192

Answer:

96 necklaces

Step-by-step explanation:

85 + 30 = 115

8,160 + 2,880 = 11,040

11,040 Divided by 115 = 96

Camila can make 96 necklaces

**Hope this helps**

What does Distributive mean in your own words?

Answers

Distributive means relating to the distribution of goods.
to give something out equally

HELPPPPPP !!!!

You are creating your own real-world problem or word problem using Pythagorean Theorem. You create the problem and solve it. Use what you find to help you create your own problem. It does not have to be a really hard problem.

Answers

Answer:

A man's garden keeps getting attacked by rabbits, so he decides to put a fence around it. the garden is in the shape of a right triangle. The people who build the fence measure side a and b, side a has a length of 6 yards. Side b has a length of 8 yards. What is the total length (in yards) of fence the builders will need?

The pythag equation is:

a^2+b^2 =c^2

So, we plug in 6 for a and 8 for b and we get:

(6*6)+(8*8)=c*c

36+64=c*c

100=c*c

Now, we all know that 10*10 is 100 so:

c=10

Now we add 10 to 8 and 6 and we get:

24

The builders will need 24 yards of fence.

The graph shows the amount of money paid when purchasing bags of peanuts at the zoo:

A graph is shown. The x-axis is labeled from 0 to 9. The y-axis is labeled from 0 to 13. Four points are shown on the graph on ordered pairs 0, 0 and 1, 4 and 2, 8 and 3, 12. These points are joined by a line. The label on the x-axis is Bags of peanuts. The title on the y-axis is Total cost in dollars.

What is the cost of one bag of peanuts?

$0
$4
$8
$12

Answers

Answer:

$4

Step-by-step explanation:

Answer:

The answer is $4

Step-by-step explanation:

The x-axis would be labeled number of bags of peanuts and the y-axis would be labeled cost of bags of peanuts

Going to the the point (1,4) would lead you to see that 1 bag = $4

x7=−0.21 helllllllllllllllllllllllllllppppp

Answers

Answer:

the answer is  -0.03

(-0.03)7= -0.21

what is the value of 6(1+2)+1

Answers

Answer:

6(1+2)+1

Step-by-step explanation:

= 6*1+2+1

=9

Hope this helps

Answer:

19

Step-by-step explanation:

given:

6(1+2)+1..( according to the rule BODMAS;bracket, divide,multiplication,addition,subtraction)should be followed in a proper way!

6*3+1

18+1

19

hope it helps!

Which picture below represents ?
5 2
10

Pls help

Answers

Answer:

C

Step-by-step explanation:

Answer: its C

Step-by-step explanation:

i literally cant even do 5th grade math pls help

Answers

insurance money/sum of all expenses * 100 %

= 90/ (650+150+130+90+80) * 100

90/1100 *100

= 90/11 * 1 (i cancelled the zeros)

= 8.18181818%

final answer = he spent 8.18 bar % of his budget on car insurance

hope this helps

If u added it together then u will get ur answer

i need help doing muiltpcation and division one numbers

Answers

Example of the equation you’re struggling with?
What’s the question

Last week, BJ’s put the $25 jeans on sale for $20. Find the percent of decrease.

Answers

your answer is a 20% decrease

Answer:

20%

Step-by-step explanation:

$25 = 100%

$20 = 80%

I the custodian finds 4 rotting bananas in the dumpster in her first 13 weeks of work, how many rotting bananas would she expect to find in 26 weeks? Write a proportion to represent the problem. Use a variable, such as x, to represent the unknown quantity. rotting banana(s) week(s) Enter the number of rotting bananas that she expects to find in 26 weeks. *see picture for much better explanation* ​

Answers

Answer:

8

Step-by-step explanation:

4/13 x/26

4 times 26, the that number divided by 4. Its called the butterfly/cross multiplying method

4. x rotting bananas
—- =. ——————————
13. 26 weeks

She should expect 8 rotting bananas in 26 weeks!! I hope this helps !!

Which ordered pair is a solution of the equation?
y=7x-2y=7x−2y, equals, 7, x, minus, 2
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
Only (3,15)(3,15)left parenthesis, 3, comma, 15, right parenthesis

(Choice B)
B
Only (-1,-10)(−1,−10)left parenthesis, minus, 1, comma, minus, 10, right parenthesis

(Choice C)
C
Both (3,15)(3,15)left parenthesis, 3, comma, 15, right parenthesis and (-1,-10)(−1,−10)left parenthesis, minus, 1, comma, minus, 10, right parenthesis

(Choice D)
D
Neither

Answers

Answer:

C the answer is c

Step-by-step explanation:

sory if the answer is wrong I said the answer c I was crying singing a song I said the answer c don't u worry keep yo head up don't believe this stuff don't do it ️

What is the answer of the question below.

Answers

c is your answer do good

Hello! I have a question =)
What is:
(7/4x) - 5 + 2y - 3.5 + (-1/4x) + 5?
Thank you!

Answers

Answer:

3/2x+2y-7/2

Step-by-step explanation:

Answer:
1.5x-3.5+2y

Step-by-step explanation:

7/4x+-1/4x= 1.5x
-5+-3.5+5=-3.5
2y

This is part of my other question

Answers

Answer:

I can't see the Picture

Step-by-step explanation:

There are 3 in each rectangle
There are 12 cats and 15 dogs

find what x and y are

Answers

Answer:

x= 8  

y = 21

Step-by-step explanation:

Y = 21 because 90-27 = 63/3= 21
I’m not quite sure how to find x

The container that holds the water for the football team is 2/9 full. After pouring in 12 gallons of water, it is 2/3 full. How many gallons can the container hold?

Answers

27 gallons I saw someone else ask the same question
27. Hope this helps you!!

Solve the problems from 10to 12

Answers

10. The answer is going to be C
11. A
i don’t know 12 but i hope this helps
10. C
11.A
12.C if you minus 6 from 44 you get 38inches and c is the only one with 38 inches on it

4/5 times 3/4 = ?

Apply using GCF and LCM to Fraction Operations

Answers

Answer:

3/5

(Decimal: 0.6)

Step-by-step explanation:

4/5= 16/20

3/4= 15/20

16/20*15/20=240/400

(240/400)/80=3/5

Referring to the figure, the ramp shown is
18 meters long and makes an angle of 9° with
the ground. What is the height h of the ramp?
Round your answer to the nearest tenth of a meter.

Answers

The height of the ramp is 25

Can someone please help? :)

Answers

Answer:

look at screenshot below! Hope it helps :) :

Help me with this please
Find the missing number so that the equation has no solutions

-4times-11=[. ]times+10

Answers

34=X believe is the right answer

Can someone please help me with this?

Answers

Do length x Width x height to find the volume of something
Do length x width x height to find the volume .

The linear function graphed below represents the height of a stalk of corn since a farmer began using a new fertilizer. What is the initial value?

A graph titled Height of a Stalk of Corn has Number of Days Using New Fertilizer on the x-axis and Height (feet) on the y-axis. Points are at (3, 10), (4, 12), (5, 14), and (6, 16).

Answers

Answer:

The initial value is 4

Step-by-step explanation:

the linear equation is 2/1 or 2. the equation is y = 2x + 4. In other words every time it rise 2 the line move the right 1. We just have to retrace our steps and since 3 - 3 = 0 we have to retrace it 3 times and 6 times on the y axis which gets us 4.

Internal Value is 4 thanks

Three friends go grocery shopping together, and each buys the same kind of
strawberries. Akio buys 2 pounds (lb) and pays $2.50. Gordon buys 3 pounds
and pays $3.75. Maria buys 4 pounds and pays $.5.00
Identify the graph and unit price that represent the strawberry costs.
Ap-ex

Answers

Unit price = total money / total weight:

2.50/2 = 1.25

Unit rate is 1.25 per 1 pound

The correct answer would be C.

2.50/2 = 1.25

tevsiwvediudvwvrjr

HELP HOW TO DO THIS EASY EXPLANATION PLS EASYYY I dun have much common sense so pls make it easy.

Answers

Answer:

(a) 9/-8 = -9/8 = 9-/8, 1 & 4

(b) -3/-7 = 3/7, only 1

The formula y = 0.394x converts a length x in
centimeters to an approximate length y in inches.
Find the approximate length in inches of an object that
is 25 centimeters long.

Answers

0.025 i hope this helps you out
0.025 is the answer
Hope this helped my friend
(mark me as brainlist)

Answer each equation correctly
1. (-2)(3) =
2. (8)(-11) =
3. (-5)(-7) =
4. (-3)(2)(-2) =

Answers

1. -6
2. -88
3. 35
4. 12
Hope this helps!
1. (-6)
2. -88
3. 35
4. 12
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