Please help! I dont understand this, I will give 15 points!

Answer:

Step-by-step explanation:

[tex]2d+4d-9-7\\\\d =5[/tex]

Substitute ; d= 5 into the given equation

[tex]2(5)+4(5) -9-7\\\\Follow\:the\:PEMDAS\:order\:of\:operations\\\\10 +20 -9-7\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:\:\\\\10+20 =30\\\\=30-9-7\\\\30-9=21\\\\=21-7\\\\21-7\\=14[/tex]

The value of the expression 2d + 4d - 9 - 7 is 14 if the value of d is 5 after plugging d = 5 in the equation.

It is defined as the combination of constants and variables with mathematical operators.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

It is given that:

The expression:

= 2d + 4d - 9 - 7

Plug d = 5 in the above expression:

= 2(5) + 4(5)- 9 - 7

The arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

= 10 + 20 - 9 -7

= 30 - 16

= 14

Thus, the value of the expression 2d + 4d - 9 - 7 is 14 if the value of d is 5 after plugging d = 5 in the equation.

Learn more about the expression here:

brainly.com/question/14083225

#SPJ2

Answer:

2/4=1/2

Step-by-step explanation:

It rises 2 runs over 4.

rise/run

2/4=1/2

Answer: the answer is option B. or h(x) = 9x - 18

Step-by-step explanation:

Answer: h(x) = 9x - 18

Step-by-step explanation:

I just took the test and got it right

Answer:

Um you didnt attach a file or anything make one again and ill answer it just attach a screenshot of the problem

Step-by-step explanation:

Answer:The answer is C :exactly 18% of the students chose blue as their favorite color.

I remember doing the last question.

If you recall, x = 29

Just plug 29 into x for each angle

A = 3(29) = 87

B = 2(29) + 1 = 59

C = 29 + 5 = 34

Answer:

The value of angle C is 34°

Step-by-step explanation:

2x+1°+x+5°+3x° = 180° { the sum of angle of triangle is 180°}

or, 6x + 6° = 180°

or, 6x = 180° - 6°

or, x = 174°/6

or, x = 29°

now,

value of angle C = x+5°

= 29°+5°

= 34°

Answer:

4

Step-by-step explanation:

6x  + 5x+2 + 134 = 180               All triangles have 3 angles = 180. Combine

11x + 136 = 180                            Subtract 136

11x = 180 - 136

11x = 44                                       Divide by 11

x = 44/11          

x = 4

=======================

Angles are

5x + 2 = 22

6x   =     24

<3    =    134

Total =  180

Answer:

$245

Step-by-step explanation:

350× 0.30 = 105 dollars off

350-105 = 245

Answer:

245

Step-by-step explanation:

350/10=35

35=10%

35x3=105

105=30%

350-105=245

Answer:

y>0 Option D

Step-by-step explanation:

Answer:

The answer is D.)

Step-by-step explanation:

This is right on edg. 2020

Answer:

225 rose stems

Step-by-step explanation:

750 / 30 = 25 rose stems per bouquet

25(9) = 225 rose stems

Answer:

36 = 2.25(x)

Number of slices = 16 slice

Step-by-step explanation:

Given:

Total amount spend = $36

Cost of each slice = $2.25 per slice

Number of slices = x

Find:

Equation

Computation:

Total amount spend = Cost of each slice × Number of slices

36 = 2.25(x)

x = 16

Number of slices = 16 slice

Answer:You must divide the equation to get the answer

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

I believe what they're doing is A+B=B+A. If not, rule this answer out.

Answer:

easy

Step-by-step explanation:

easy..................

Answer:

1.) $54

2.) $21 left

3.) 15 tigers

Step-by-step explanation:

1.) If the original price of an item was $60, and it was reduced by 10%, that means it is now being sold at 90% of its original value.

To find out the new price, simply take the original value and multiply it by 90% (as a decimal).

60*.90=54

So the new price is $54

2.) This is simple subtraction. If you spend $45 on some CDs and $12 on a t-shirt, you spent a total of $57. Subtract $57 from your total of $78.

78-57=21

You are left with $21

3.) Ratios are all about multiplication. If the ratio of lions to tigers is 3:5, that means that the number of lions is going to be any factor of 3, as long as it corresponds to the same factor of 5 for the tigers.

For example, if there are 9 lions, there must be 15 tigers.

3*3=9

5*3=15

There are 15 tigers

Answer:

$21

Step-by-step explanation:

$42/2 = $21 per hour

Answer:

They have no more candy

Answer:

diabetes

Step-by-step explanation:

Answer:

  35

Step-by-step explanation:

Let h represent the number of hot dogs Ryan eats in 15 minutes. Since the rates are the same, we have ...

  dogs/minutes = h/15 = 14/6

Multiplying by 15 gives us ...

  h = (15·14)/6 = 35

Ryan can eat 35 hot dogs in 15 minutes.

Answer:

0.66666667 or 0.6

Step-by-step explanation:

if you put [tex]\frac{2}{3}[/tex] in a calculator and convert it, it would display

0.6666 with infinite sixes.

you can also write it as:

0.6

ps ;; you would do this for any fraction, then round it.

Answer:

a.) 20

b.) 4/3

c.) 3

Step-by-step explanation:

a.) Plug in 5 for x

5(5) - 5

25 - 5

20

b.) Plug in 1/3 for x

5(1/3) - 1/3

5/3 - 1/3

4/3

c.) Set equation equal to 12 to find x input

12 = 5x - x

12 = 4x

3 = x

x = 3

the answer to the inequality is..

Inequality Form: x < 6

Interval Notation: (-∞,6)

Answer: x < 5

Step-by-step explanation:

4 - 4x + 5 + 5x > 3x - 1

9 + x > 3x - 1

10 > 2x

x < 5

Answer:

6.73 X 10 to the sixth power.

1.33 X 10 to the fifth power.

9.77 X 10 to the twenty-second power.

Step-by-step explanation:

Answer:

8 miles per hour

Step-by-step explanation:

24 divided by 3 equals 8 miles per hour

Answer: 8 miles

Step-by-step explanation:

24/3=8, so the unit rate is 8 miles an hour, which means he ran 8 miles in 1 hour.

Answer:

The expression is not factorable

with rational numbers

Answer:

[tex]A\approx\$880.68[/tex]

Step-by-step explanation:

So, we know that Jolene bought an initial $750.

We also know that the purchase is increasing at an average rate of 5 1/2 %or 5.5%. In other words, this is being compounded.

So, we can use the compound interest formula, which is:

[tex]A=P(1+\frac{r}{n})^{nt}[/tex]

Where A is the total amount, P is the principal value, r is the rate and n is the number of times compounded per year, and t is the amount of years.

So, substitute 750 for P. 5 1/2% is the same as 5.5% or 0.055 (you move the decimal two places to the left and remove the percent symbol) so substitute this for r. Since it's increasing yearly, n is 1. So, our formula is:

[tex]A=750(1+0.055)^t[/tex]

Add:

[tex]A=750(1.055)^t[/tex]

Since the stock was bought 3 years ago, the value now is t=3. So, substitute 3 for t and evaluate:

[tex]A=750(1.055)^3[/tex]

Evaluate. Use a calculator:

[tex]A\approx\$880.68[/tex]

And we're done!

Formula: A = P(1 + r/n)^t

We have these variables:

P = 750

r/n = 0.055

t = 3

Substitute and simplify:

A = 750(1 + 0.055)^3

A = 750(1.055)^3

A = 880.68

Best of Luck!

Answer:

2t^12/s^3

Step-by-step explanation:

Answer:

531.25 tons per 12.5 hr

Step-by-step explanation:

42.5 per hr

× 12.5

531.25 tons per 12.5 hrs

Answer:

531.25 tons per 12.5 hr

Step-by-step explanation:

Answer:

L = 2w  134 = 2L + 2w

l= length

w=width

l=2w

P=Perimeter= 134 ft

P= 2(l+w)

 = 2(2w+w)

 = 2(3w) = 6w=134

w=134/6=22 1/3 ft

l= 2w = 2 x 22 1/3 = 44 2/3 ft

Hope it helps

Answer:

Step-by-step explanation:

R=r

Answer:

5.603 ounces

Step-by-step explanation:

From the information given, you know the ounces of orange juice included in a bottle and the ounces of mixed fruit juice that the bottle has. So, to be able to determine how much of the bottle of mixed fruit juice is not orange juice​, you have to subtract the ounces of orange juice in the bottle from the ounces of mixed fruit juice that it has:

6.85-1.247=5.603

According to this, the answer is that the bottle of mixed fruit juice has 5.603 ounces that are not of orange juice.

Answer:

Step-by-step explanation:

|a| changes the sign to + if a<0

so solution of |x| = 8 would be x=8 or x = -8