Twice a number increased by seven is equal to five. Which of the following represents the equation and solution for this statement?

2 n + 7 = 5; n = -4.5
2 n = 7 + 5; n = 6
2 n + 7 = 5; n = -1
2( n + 7) = 5; n = -4.5

Answer:

1 + 2i, 1 - 2i   are both correct answers in this scenario. Make sure to write both separated by a comma or it will be marked wrong! :) Good luck!

Answer:

A I think

Step-by-step explanation:

Answer:

the last one

Step-by-step explanation:

as you can see, all of the answers are different. b and c are the same, a and d are the same. but just switched around, but d is the answer since the numbers are switched, the letters didn't switch around. so it's the last one, the expressions are the same

Answer: Bakery sold 340 cupcakes

Step-by-step explanation:

119 ÷ 35% × 100% = 340

Answer: 3

Step-by-step explanation: 2+1=3

Answer:

I got 14 x -2

Step-by-step explanation:

to add all of the like terms you get:

2x + 7x + 5x = 14x

then add the other terms you get:

-6 + 4 = -2

when adding the two parts together you get:

14x -2

Am pretty sure this is right, sorry if its wrong

Answer:

2(a+2b+15)

Step-by-step explanation:

hope this helps!

Answer:

b=-8

Step-by-step explanation:

Answer: i think the answer is C

maybe this will work

Step-by-step explanation:

Answer:

2)

(2x -5) + (x) + (2x - 3) = 32.

5x-8 = 32.

ii) 5x-8=32

5x= 32+8

5x = 40

x= 40/5

x = 8

iii) 2x -5

2 × 8 -5 = 11.

2x-3

2×8-3

16-3 = 13

x =8

sides of the triangle= 8, 11, 13.

Answer:

25,16,121,49

5 is the sqaure root of 25 4 is the sqaure root of 16 11 is the square root of 121 and 7 is the square root of 49

50,145,20, and 8 do not have square roots.

Answer:

2 and 3

Step-by-step explanation:

Answer:

-1/2

Step-by-step explanation:

Use the formula m=y2-y1/x2-x1

m= -4 -1/3- -7

m= -4+-1/ 3++7

m=-5/10

m=-1/2

the first step Andre made was

2x+6=3x-8

or, -x+6=-8

And the first step Diego made was

2x+6=3x-8

or, +6=3x-2x

or, 6=x-8

...

Answer:

10 red pens

Step-by-step explanation:

Answer:

n = 12, p = 4

Step-by-step explanation:

Hi there!

n = notebook

p = pen

If we know that one notebook costs 8 dollars more than a pen,

we can set the equation for the cost of the pen as n - 8 = p. Now, we have to create an equation for the total cost. This could be represented as 4n + 2p = 56.

Let’s plug in that equation for the pen into our total cost equation.

This would become [tex]4n + 2(n-8) = 56[/tex]

Using distributive property, the equation becomes [tex]4n + 2n - 16 = 56[/tex]

After we combine like terms and add 16 to both sides, we find out that [tex]6n = 72[/tex] or n = 12

Now that we know the cost of the notebook, we can solve for the pen. Plug in 12 for the n values in the original equation [tex]4n + 2p = 56[/tex]

This leaves us with 48 + 2p = 56. Subtract 48 from both sides and then divide that by two to find p.

p = 4

I hope this helped!

Answer:

Cost of one notebook = $12

Cost of one pen = $4

Step-by-step explanation:

Let,

Cost of one notebook = x

Cost of one pen = y

According to given statement;

x = y+8    Eqn 1

4x+2y=56    Eqn 2

Putting value of x from Eqn 1 in Eqn 2

4(y+8)+2y=56

4y+32+2y=56

6y=56-32

6y=24

Dividing both sides by 6

[tex]\frac{6y}{6}=\frac{24}{6}[/tex]

y=4

Putting y=4 in Eqn 1

x = 4+8

x=12

Hence,

Cost of one notebook = $12

Cost of one pen = $4

Answer:

HERE U GO LOVE

3/8 x 24 = 9

Step-by-step explanation:

so 3 divided by 8 equal 0.375 right

so 0.375 x 24 = 9 make me brainlist pls

Answer:

The answer is 9

Step-by-step explanation:

First, you wanna get rid of the fraction 3/8 so divide 3/8 or 3 ➗ 8 which will give you 0.375. Then multiply 0.375 to 24 to get your product.

Problem:3/8 x 24=?

Step 1:Turn fraction into a decimal

3 divided by 8 =0.375

Step 2:Multiply 0.375 to 24

0.375 x 24= 9

Answer:3/8 x 24=9

Answer:

the answer is B

Step-by-step explanation:

hoped I helped:)

Answer: b)24+21

Step-by-step explanation: You have 3(8+7).So u do distributive property.

First do 3 times 8 =24 then d0 3 times 7 =21.Lastly add them together which is 24+21.

Hope it helps :)

Answer:

Step-by-step explanation:

D

Answer:

After 4 months, the charges will be same.

Step-by-step explanation:

Membership charges of club one = $40

Per month charges = $40

Let,

x be the number of months

y be the total amount

y = 40x + 40

Membership charges of club two = $100

Per month charges = $25

y = 25x + 100

For equal charges, both equations will be same

40x + 40 = 25x + 100

40x - 25x = 100 - 40

15x = 60

[tex]\frac{15x}{15}=\frac{60}{15}\\x=4[/tex]

Therefore,

After 4 months, the charges will be same.

Answer:

-6

Step-by-step explanation:

bc m and m are real numbers.

Answer:

divide kinda

Step-by-step explanation:

so if its 60 on one side then it needs to have numbers on the other side that equal 60. do 60 divided by 5. every u is your answer (12). you add all the u's up to make them equal. u+u+u+u+u=60 or 12+12+12+12+12=60. Make both sides balanced.

Answer:

the third one, the one that says 0.625

Step-by-step explanation:

Answer:

bvghb vbub b

Step-by-step explanation:

Answer:

b. 1 foot 5 inches

Step-by-step explanation:

because one foot is 12 inches

Answer:  TVU is 51 degrees

Step-by-step explanation:  The pre-image and new image are formed via a translation which is basically sliding. A translation is a rigid transformation, which means it preserve angles measures and sides length. So when we translate these two figures they are congruent. Using that logic, Segment AB translate to TU which means TU is 25 cm. Angle B translate  to Angle U and Angle T was originally conguent to Angle A.

To find Angle V, we are going to use triangle interior angle theorem. 72+57+x=180

129+x=180

x=51