Which expression correctly represents "twice the sum of four and a number"?

Answer:

1 fancy  15 plain

Step-by-step explanation:

F + P = 16

15F +10P = 165

Miltiplu the 1st by  -10:

-10F -10P = -160

15F +  10P = 165

Add both (10p is cancelled)

5F = 5

F =1

16-1 = 15   (15plain)

15 x10 =150

1x15 =15

  150 +15 = 165

Answer:

b

Step-by-step explanation

look at the way the way the line curves and cross over into the positive across the dotted line. the curw = y

Answer:

Step-by-step explanation:

It might be B

Answer:

To round a number look at the next digit in the right place, if the digit is less than 5, round down and if the digit is 5 or more than 5, round up.

Answer:

lol same. rounding decimals is just like rounding regular numbers

Example:

0.457 rounded to the nearest tenth...

5 rounds up so the answer would be 0.5

that's an example, please let me know if you need any other help!

Step-by-step explanation:

the answer is 170 cubic inches

Answer:

C. 170 cubic squares

Step-by-step explanation:

i took the test <3

Answer:

Maybe B but not 100 percent sure

Step-by-step explanation:

Sorry if it does't help

f(x) = 3x + 1

f(9) = 3(9) + 1

f(9) = 27 + 1

f(9) = 28

f(9) = 28. I hope this helps! I have a g00gle classroom where I help with algebra including this. If you are interested, please consider joining. I will post the class code in the comments if it would let me. Sorry it wouln't let me type g0ogle properly.

Answer:

28

Step-by-step explanation:

f(9) means when x = 9.

when x = 9,

f(9) = 3(9) + 1

= 27 + 1

= 28

Answer: For Mrs. Bhan, she pay 9.75 each visit for ten time so 10 ÷ 97.50

I don’t know how to answer for Mr. Stewart but I answer Mrs. Bhan. Hope this helps!

Answer:

Step-by-step explanation:

a)

eq 1) 97.50 = fee + 10x

eq 2) 83.50=fee +8x

subtract eq 2 from eq 1

14 = 2x

7 =x

each visit costs $7

b)

97.50 = fee + 10(7)

97.5- = fee +70

27.5 = fee

it costs $27.50 to sign up at the gym

( this seems like an expensive gym )

c)

gym costs = 27.50 + 7 per visit

cost = 27.50 +7x

( let's look for a less expensive gym :D  )

Answer:

The answer is "[tex]45^{\circ}[/tex]"

Step-by-step explanation:

In this question, the 9 and 10 values indicate the supposed to be the same. Those who are both complementary and therefore equivalent to 90 degrees. It is also [tex]\frac{90}{2} = 45^{\circ}[/tex].

Here's the solution,

figure 1.

by using trigonometry,

=》

[tex] \sin(60) = \dfrac{5 \sqrt{3} }{y} [/tex]

=》

[tex] \dfrac{ \sqrt{3} }{2} = \dfrac{5 \sqrt{3} }{y} [/tex]

=》

[tex] \dfrac{1}{y} = \dfrac{ \sqrt{3} }{2 \times 5 \sqrt{3} } [/tex]

=》

[tex] \dfrac{1}{y} = \dfrac{1}{10} [/tex]

=》

[tex]y = 10[/tex]

And,

=》

[tex] \cos(60) = \dfrac{w}{y} [/tex]

=》

[tex] \dfrac{1}{2} = \dfrac{w}{10} [/tex]

=》

[tex]w = 5[/tex]

So, values are :

figure 2.

Since, it's an isosceles triangle, w = y,

So, by pythagoras theorem :

=》

[tex] {w}^{2} + {y}^{2} = (7 \sqrt{2} ) {}^{2} [/tex]

=》

[tex] {w}^{2} + {w}^{2} = 98[/tex]

=》

[tex]2 {w}^{2} = 98[/tex]

=》

[tex] {w}^{2} = 49[/tex]

=》

[tex]w = \sqrt{49} [/tex]

=》

[tex]w = 7[/tex]

and we know, w = y, so their values will be equal to 7 units.

Step-by-step explanation:

Area of the circle = pi x r²

= pi x 21²

= pi x 441

= 1386cm²

Step-by-step explanation:

Area of Circle

[tex] = \pi {r}^{2} \\ = \pi(21) {}^{2} \\ = 441\pi \: cm {}^{2} or \: 1385.442cm {}^{2} [/tex]

Answer:

18 liters

Step-by-step explanation:

12/6 = 2 liters per day

2 x 9 = 18 liters

Answer:

The equation for line D is y=-2

Step-by-step explanation:

-2 is the line that it lays on.

Answer:

m=1/2 & b=-2

Step-by-step explanation:

so in order to find m & b we need to distribute 1/2

y=1/2(x+6)-5

y=1/2x+3-5

y=1/2x-2

y=mx+b so

m=1/2 & b=-2

Answer: i dont know where u got m and b from but y=[tex]\frac{x}{2}[/tex] abd x= 2y+4 :)

Answer:

a. the error is that he wrote 0.05 instead of 0.2

0.148835 ≈ 0.2

b.

0.2 = 2 × 0.1

0.2 = 2 × 10⁻¹

The mass is about 2 × 10⁻¹ kg

Answer:

The probability would be 2/9

Step-by-step explanation:

There are 5 seats in mezzanine

There 2 seats in upper level

There are 2 seats in Courtside

Bonnie and Kelly are only two of the 7 people in the group which in total is 9

since 9 seats were chosen and 2 of those were Courtside. 2/9 is the probability they will get the Courtside seats

Answer:

I don’t know but I know 27 times 630 plus 19 times 680 is 29,930 I’ve tried some other ways but it gets really close but not exact

Step-by-step explanation:

Answer:

Parallelograms

Step-by-step explanation:

Answer:

Step-by-step explanation:

A = 3M

J = 2A

J = 6M

Marie = M

Andre = 3M

Jane = 6M

6M+3M+M = 840

10M = 840

M= 84 Pounds

Andre = 3M

Andre = 84*3

Andre has 252 pounds of apples.

Answer:

any number between 83 and 0. [tex]0\leq x\leq 83[/tex]

Step-by-step explanation:

the number 1,548.4484 has the last two digits of 84.

And since the number has to be less than the other number and you can only switch the last two digits in the decimal's place. It has to be less than 84

Hope that helps :)

Answer:

the digit is 4, because that has 4484 but just put 4444

Answer:

6000

Step-by-step explanation:

so you have to divide 3000 and 6 to get 500

next you would do  500 times 6 equals = 3000

so now you would plus them and get 6000

now that is your answer

please give me branlyiest

Answer:

-0.25

Step-by-step explanation:

count how many tick marks are between each number. Since there are four tick marks it is divided by fourths.

Answer:

75 degrees

Step-by-step explanation:

Complementary angles equal 90 degrees together. That is the case with angle X and Y. Set an equation to describe the situation.

Y=1/5X

X=5Y

Now, set another equation:

X+Y=90

Substitute the first equation into the second one.

5Y+Y=90

6Y=90

Y=15

Substitute this once again:

X+15=90

X=75

Answer:

Fraction of total amount each person will get = [tex]\frac{1}{6}[/tex]

Step-by-step explanation:

Let the amount of potatoes a bag can hold = a pounds

If the amount shared by the Rameen and her friends is [tex]\frac{2}{3}a[/tex] pounds,

Amount of potatoes each person will get = [tex]\frac{\text{Total amount of potatoes shared}}{\text{Number of persons}}[/tex]

= [tex]\frac{\frac{2}{3}a }{4}[/tex]

= [tex]\frac{1}{6}a[/tex] pounds

Fraction of total amount each person will get = [tex]\frac{\text{Amount of potatoes each person will get}}{Total amount of potatoes}[/tex]

= [tex]\frac{\frac{1}{6}a }{a}[/tex]

= [tex]\frac{1}{6}[/tex]

Answer:

D.

Step-by-step explanation:

Sorry i haven't been on much, btw.

Answer:

1, -1, 0

Step-by-step explanation:

Those are numbers between or equal to -2(not equal to -2) and 1.

Answer:

-1/0/1

Step-by-step explanation: