Mathematics Middle School

Which number sentence has a product of 42?

-7 × (-6)
-6 × 7
-7 × 6
7 × (-6)

Answers

Answer 1

Answer:

-7 x -6

Step-by-step explanation:

the other ones will equate to negative 42 whereas the double negative becomes a positive in the first one

Answer 2
the answer is -7 x (-6)

Related Questions

Which expression represents the sequence of operations described below?
subtract 4 from 8, then multiply the result by 5

Answers

Answer:

(8-4)×5

Step-by-step explanation:

expression is as above

Answer:

(8-4) • 5 = 20

Step-by-step explanation:

first you solve what is in the parentheses;

8-4 which = 4

then you multiply 4 by 5 which is 20

Please hurry will give braliny

Answers

Answer: D

Step-by-step explanation:

Follow the PEMDAS rule.
It’s not A, because when you solve 2^2 and sq rt of 4, the square exponent and the square root cancels out, so it’s simply 2 x 4. Then you follow by doing division and multiplication, 45/5 is 9 and 2 x 4 is 8, so 9+8=17.

It’s not B, because first solve the numbers in the parentheses. 2^2 is 4, 5+4 is 9. Then solve the square root of 4 which is 2, and you get 45/9x2, which is 10.

It’s not C because 2^2 is 4 and sq rt of 4 is 2, and 4-2 is 2. Then divide 45 by 5 to get 9, and 9+2 is 11.

The correct answer is D, because when you solve 2^2 which gives you 4 and add that to 5, you get 9. The sq rt of 4 is 2, so you get 45/9-2, which is 3.

Hope this helps!

The answer is D. Checked by a calculator

HELP
Jack wants to model a situation where the perimeter of the rectangle below is 6 ft plus or minus 1.5 ft.

Answers

Answer:

Step-by-step explanation:

The perimeter of the rectangle is given as:

The perimeter of a rectangle is:

So, we have:

Substitute values for length and width

Split

or

or

Divide both sides by 2

or

Solve for x

or

or

Both values of x are negative.

This means that; the absolute value model cannot work, because a rectangle cannot have a negative dimension.

Hence, option (c) is correct.

Read more about perimeters at:

brainly.com/question/6465134

Answer would be + 1.5 ft. The bottom is larger than the side

Marsha reads for 3 hours each day. There are 24 hours a day. What decimal represents the part of each day that Tyler spends reading?

Answers

The answer is the first one 0.125

Answer:0.125

Step-by-step explanation:

Please hurry will give braliny

Answers

Step-by-step explanation:

answer is 11 or d

squareroot 25=5

so 5-5=0

3²=9

so 9+2=11

Answer:

I believe its C, I could be wrong tho

Lilly starts hiking along a trail at 3 miles per hour. Dave starts hiking the same trail from the same starting point at 3.5 miles per hour. If Lilly walked 2 miles before Dave started hiking, would he catch up to her?


I just need the equation.

Answers

Answer:

it should be 7

Step-by-step explanation:

because if they walk a total of 3 miles and lily walks 2 mile before David that would be 3.5 times 2 which is 7

Answer: yes

Step-by-step explanation:

Use the fact that 13x17=221 to find the following and explain how you found each solution
13 × 1.7
130 x 17
13 x 1700
I do not understand what it wants me to do please help

Answers

Answer:

13 × 1.7

130 × 17

13 × 1700

13 × 17× 100

221 × 100

22100

So the answer is 22100

(13 x 17 = 221) given info

13 x 1.7 =22.1

130 x 17 =2210

13 x 1700 = 22100

Explanation: i believe your learning about how to move your decimal place. If you see the given information 17 is the number we are looking at. When the first equation comes up, there’s a decimal making 17 -> 1.7 . Then you move the decimal in the other direction making the 17. turn to 170. then 1700. Making your answer 22100

PLS HELP ME!!!! THIS IS DUE TOMORROW!!! v - 1/2 = -9/8
What is v?

Answers

Answer: v=-5/8

Step-by-step explanation:

v - 1/2 = -9/8

(v - 1/2 = -9/8)*8      ==> multiply the equation by 8 to get rid of fractions

8v - 8*1/2 = -9

8v-8/2=-9

8v-4=-9

8v=-5

v=-5/8

Answer: v=-5/8

Step-by-step explanation:

I think I’m in your class. My class went over the answers the day before.

can you please help me

Answers

Yes, I can’t see the picture though
there is no picture tho

Referring to the figure, the circle shown is drawn on grids. Find
A ÷ r and A ÷ r2.
a. 5.4, 3 c. 10.3, 2.9
b. 12.6, 4.2 d. 10.9, 3.1

Answers

••••• The answer is a ••••••

Answer:

a

Step-by-step explanation:

Find 3 consecutive odd integers such that the sum of 2 times the first and the last term is equal to 5 times the middle integer.

Answers

Answer: 10

Step-by-step explanation:

Anwser is 10.................

ANSWER THIS CORRECTLY TO BE BRAINLIEST

Answers

Answer:

Q6. -5/2

Q7. -7/24

Q8.  127/24

Q9. 151/12

Step-by-step explanation:

Q6. (−3/4)+(−7/4) = -3-7/4 = -10/4 = -5/2

Q7. 3/8 - 2/3 = 3*3/8*3 - 2*8/3*8 = 9/24 - 16/24 = 9-16/24 = -7/24

Q8. 18+2/3 - 8+3/8 = 20/3 - 11/8 = 20*8/3*8 - 11*3/8*3 = 160-33/24 = 127/24

Q9. 12+1/4 + 27+1/3 = 13/4 + 28/3 = 13*3/12 + 28*4/12 = 39 + 112/12 = 151/12

8 : 5 7/24
9 : 32 1/3

The zoo is hosting a special evening event for visitors ages 12 and up. During the event, the price of popcorn is reduced from $3 per bag to $2 per bag. If 843 bags of popcorn were sold during the event, which integer expresses the total amount of money the zoo lost by reducing the price?


−$843

−$1


−$2

Answers

Answer: -$843

Step-by-step explanation:

843 x 3 = $2529    

843 x 2 = $1686

2529 - 1686 = $843

The zoo makes $2529 on a regular night, but because there is a discount, they make $1686. The amount of money is the difference between the two totals. Therefore, the total amount of money the zoo lost by reducing the price is $843.

843

Because the difference was 1, just do -1x843 to get -843

Divide the following integers.

-12 � 4=

-8
-3
-48
3

Answers

Answer:

3

Step-by-step explanation:

a begative divided by a positive is a negative and 12/4 is 3 so it becomes -3

Answer:

-3

Step-by-step explanation:

Please hurry will give braliny

Answers

Hello,

[tex]( {c}^{2} + {d}^{2} ) - 2( {c}^{2} - {d}^{2} )[/tex]

[tex] = (( - 2) {}^{2} + 2 {}^{2} ) - 2(( - 2) {}^{2} - 2 {}^{2} )[/tex]

[tex] = (4 + 4) - 2(4 - 4)[/tex]

[tex] = 8 - 2 \times 0[/tex]

[tex] = 8[/tex]

Answer:

d or 16

Step-by-step explanation:

(-2²+2²)-2(-2²-2²)

-2(-4-4)

8+8=16

PLS help me 30p + brainlyest

Answers

Answer: is five over 8

Step-by-step explanation:

Answer: 8 over 5 :p

Step-by-step explanation:

in November, MS Calistro's students read 20 books in December they read 16 books. What is the percent increase or decrease of books they read

Answers

Answer:

20 percent decrease

Step-by-step explanation:

20% is the percent that they read!

Will give 20 points to whoever answers

Answers

Answer: I hope this helps.

Step-by-step explanation:

What inequality is graphed below?

Answers

Answer:

x is less than or equal to 1.5

(less than sign with a bar below it)

× is less than or equal to 1.5

Help please. Screenshot if below:

The table shows the changes in the times (in seconds) of four teammates. What is the mean change? Write your answer as a decimal. {picture}
The mean change is _____second(s).

Answers

Answer: - 1.28

Hope this help you and or any other person that needs this :)

Step-by-step explanation:

PLEASEE HELP ME
Referring to the figure, find the area of the rectangle shown.
a. 48 m2 c. 567 m2
b. 96 m d. 2,268 m2

Answers

Answer:

c

Step-by-step explanation:

area is length multiply width 21 and 27 is 567m2

THE ANSWER WOULD BE
B IS THE CORRECT ANSWER

Minya is looking at a map that is drawn to a scale in which 0.25 inch represents one mile. If the map shows 3.4 inches between her house and her school, how many miles does she live from school? Did you multiply or divide to find your answer?

Answers

Answer: you would need to multiply to find the correct answer.

You are going to need to multiply

What is the sum of -45 and 17?

28
-28
-62
-32

Answers

-28

(-45)+17=-28

So the answer is b
The answer is -28

-45 + 17 = -28

Did I do it right? Grade 7 math

Answers

Answer:

You have all the right answer except for the last one it should be 20 not 22

Step-by-step explanation:

Here's way she is buying two candles which is $12 then to rush it it is an extra $8 adding them together you get only $20.

Please Help!

Topic: Indices with algebraic expressions

Answers

Answer:

7/4x squared

that's the answer to your question

Answer:

Step-by-step explanation:

7x^4\2

Pls help I don’t know how to turn these decimals into fractions and it is hw for tomorrow

Answers

Answer: -342.7074

Step-by-step explanation: first multiply 7(-2.655), which is -18.585. since only one of the numbers is negative, the product will also be negative. multiply -18.585 by 18.44. this is equivalent to -342.7074.

-342.7074 hope this helped

9.(5)²
HELP ME !!!!!!!!

Answers

Answer:

225

Step-by-step explanation:

5 Times The Square Root Of 2 Is 25, Then I Multiplied That My 9, and Im 100% Sure 225 Is Correct.

Hope This Helps.

What is 40% of 48.2 km

Answers

pretty sure its 19.28 kilometers

Answer:

19.28 kilometers

Step-by-step explanation:

40 percent *48.2

= (40/100)*48.2

= (40*48.2)/100

= 1928/100 = 19.28

Now we have: 40 percent of 48.2 = 19.28

Question: What is 40 percent of 48.2?

We need to determine 40% of 48.2 now and the procedure explaining it as such

Step 1: In the given case Output Value is 48.2.

Step 2: Let us consider the unknown value as x.

Step 3: Consider the output value of 48.2 = 100%.

Step 4: In the Same way, x = 40%.

Step 5: On dividing the pair of simple equations we got the equation as under

48.2 = 100% (1).

x = 40% (2).

(48.2%)/(x%) = 100/40

Step 6: Reciprocal of both the sides results in the following equation

x%/48.2% = 40/100

Step 7: Simplifying the above obtained equation further will tell what is 40% of 48.2

x = 19.28%

Therefore, 40% of 48.2 is 19.28

PLS HELP ME WITH THIS!!! THIS IS DUE TOMORROW!!! b − 7/4 = -2/3
What is b?

Answers

Exact form:
1/4

Decimal form:
0.25
B is 13/12 which can be put into a mixed number as 1 1/12

Here is the shown work:
4x+(-7)/4=-2/3
4x-7/4=-2/3
3(4x-7)=4(-2)
3(4x-7)=-4 times 2
3(4x-7)=-8
3 times 4x - 3 times 7 =-8
12x-21=-8
(12x-21)+21=-8+21
12x-21+21=13
12x=13
12x/12=13/12
X=13/12

What possible transforms are shown below?


A reflection in the y-axis

A translation 4 units to the left

A rotation of 90°

A reflection in the x-axis

(multiple select)

Answers

Answer:

A reflection in the y axis

Step-by-step explanation:

if you count the spaces over the y axis you can tell that it is reflected

Answer:

B,C,D

Step-by-step explanation:

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