i don’t understand how to do this 3a + 7 + 2(3 +a)

Answers

Answer 1

Answer:

5a+13

Step-by-step explanation:


Related Questions

X, Y and Z are three points on a map. Y is 75km and on a bearing of 200° from X. Z is on a bearing of 150°, from Y. Z is due south of X. Calculate the distance between X and Z rounded to 1 DP.

Answers

Answer:

The distance between X and Z is approximately 114.9 km

Step-by-step explanation:

The given parameters are;

The distance of Y from X = 75 km

The bearing of Y from X = 200°

The bearing of Z from Y = 150°

The bearing of Z from X = 180°

In triangle XYZ, we have;

∠YZX = 180° - (130° + 20°) = 30°

By sine rule, we have;

(75 km)/sin(30°) = XZ/(sin(130°))

XZ = sin(130°) × (75 km)/sin(30°) ≈ 114.9 km

The distance between X and Z ≈ 114.9 km. to one decimal place.

What is the length of line segment PQ shown below?

Answers

I think the answer is (-8,-6) I’m not sure sorry

what is 829.085 rounded to the nearest hundredth

Answers

Answer:

829.09

Step-by-step explanation:

Hope this helps :)

Estimate the square root of 175 to the nearest integer

Answers

Answer:

Step-by-step explanation:

The nearest integer would be 13.

You would find the square root of 175, which is 13.22, and you would round that to the nearest integer, 13.

Justin set his watch 19 seconds behind, and it falls behind another 1 second every day. How
many days has it been since Justin last set his watch if the watch is 50 seconds behind?

Answers

Answer:

31 days

Step-by-step explanation:

Hope this helps!

Brainiest?

Answer:

31 days

Step-by-step explanation:

you have a set number already 19 if every day the watch goes back 1 day 31+19=50

answer first and u will get a brain, a few free questions, thanks, or a rating.

Answers

It’s B because if you divide 20/100it will equal 0.2 which also equals 0.20 or 20%.

need a quick answer please

Answers

Answer:

x=7

Step-by-step explanation:

(12x+1))+(5x-3)=117

conbine like terms

17x-2=117

     +2 +2

17x=119

/17    /17

x=7

I want to know how to expand x(4 - 3.4y)

Answers

X(4-3.4y)
= 4x - 3.4xy

Answer:

X(4-3.4y)

= 4x - 3.4xy

Step-by-step explanation:

Sonya had 20 dollars to spend on 3 gifts. She spent 8 1 4 dollars on gift A and 4 4 5 dollars on gift B. How much money did she have left for gift C?

Answers

Answer:

6 19/20 dollars

Step-by-step explanation:

Sonya had 20 dollars to spend on 3 gifts.

She spent 8 1 4 dollars on gift A and 4 4 5 dollars on gift B.

Gift A + Gift B + Gift C = $20

Gift C = $20 - (Gift A + Gift B)

Gift A = $8 1/4

Gift B = $4 4/5

Hence:

The amount she had left for gift C is :

Gift C = $20 - ($8 1/4 + $ 4 4/5)

Gift C = $20 - $13 1/20

Gift C = $ 6 19/20

Calcula la longitud en YARDAS de
un trayecto A que mide 100 metros
y la longitud en
YARDAS de un trayecto B que mide 18.50

Answers

Answer:

Las longitudes solicitadas en yardas son:

Trayecto A = 109.361 yardas.Trayecto B = 20.231785 yardas.

Step-by-step explanation:

Para hacer la conversión de unidades que requieres en el ejercicio, debes saber que:

1 metro = 1.09361 yardas

Con ese factor de conversión tú puedes hacer reglas de tres para calcular las medidas que requieres. En el caso del trayecto A:

Si:

1 metro = 1.09361 yardas100 metros = X

Entonces:

[tex]x=\frac{100m *1.09361yardas}{1m}[/tex]

Cancelamos metros y obtenemos:

x = 100 * 1.09361 yardasx = 109.361 yardas

En este caso, el trayecto A en yardas corresponde a 109.361 yardas. El mismo procedimiento puede aplicarse para el trayecto B:

Si:

1 metro = 1.09361 yardas18.50 metros = X

Entonces:

[tex]x = \frac{18.50m*1.09361yardas}{1m}[/tex]

Cuando se cancelan los metros se obtiene:

x = 18.50 * 1.09361 yardasx = 20.231785 yardas

Así, el trayecto B en yardas corresponde a 20.231785 yardas.

the ratio of boys to girls is 5:4. there are 64 girls in choir. how many boys are in choir?

1. 48
2.61
3.75
4.80

PLEASE ANSWER FAST!!! <3 ( only reply if you know the answer x_x)

Answers

Answer:

boy:girls

5:4

64/4= 16

5 X 16 =80

there are 80 boys

52,428 divided by 34

Answers

1542..................

Answer:

1542

Step-by-step explanation:

y = x + 2
y = 2x - 5
what is x and y

Answers

Answer:

x= 7 y= 9 (7,9)

Step-by-step explanation:

solve by using system if equations. multiply top answer by 2, giving u 2y=2x+4 and y=2x-5 subtract the equations. y=9 (the x cancels out) then put 9 in for y. 9=x+2. subtract 2. giving u 7. and now x =7

pleaze help
Plot the ordered pair in a coordinate plane. Describe the location of the point. 32. A(1,3)
33. B(0, -3)
34. C(-4,-2)
35. D(-1 1/4, 2)
and explain it if u can

Answers

Answer:

Well, there are 4 quadratic spots on the graph. A(1,3) would be in the top right. B(0,-3) would be on the line on the bottom half of the graph. C(-4,-2) would be in the left bottom half of the graph. and D(-11/4,2) would be in the top right. Connect the dots and just say the shape it makes.

Step-by-step explanation:

An artist creates an abstract sculpture that appears as a box perched on top of a post. The box is in the shape of a cube with edges measuring 5 inches each. It is placed on top of a post in the shape of a rectangular prism with a length of 3 inches, a width of 4 inches, and a height of 18 inches. The volume of the entire sculpture (box and post) is (how many) cubic inches.

Answers

Answer:

the nswer is 37

Step-by-step explanation:

?? anyone know thank you

Answers

Answer:

19/20 is the correct answer

Answer:

19/20 quart

Step-by-step explanation:

the denominator should be the same so find some thing that is common to 4 and 5 so 20 and find what 4 in to 20 go 5 times so multiply 5×3=15 and 4×1=4 so add them together 15+4 = 19 so put 19 and 20 together equal 19/20

Solve for sss:
-0.2=s+\left(-0.8\right)−0.2=s+(−0.8)

Answers

Answer:

S =0.6

Step-by-step explanation:

-0.2 = s + (-0.8)

-Add 0.8 to each side

Solve the inequality and enter your solution as an inequality comparing a variable to a number x+9>13

Answers

Answer:

x>4

Step-by-step explanation:

Step 1: Subtract 9 from both sides.

x+9−9>13−9

x>4

HELP PLEASE!!! 100 POINTS

Answers

Answer:

3,400

Step-by-step explanation:

Answer: 10.5882353 I think I DO NOT PROMISE THIS IS RIGHT

Step-by-step explanation:

For a second of sauce 1 and sauce 2 Andrew plans to use 3,180 green peppers and 5,560 hot chili peppers

Answers

Answer: Um ok? What are the measurements of the original batches...

Step-by-step explanation:

A school has 320 girls and 250 boys the probability of a girl being left handed is 0.2 the probability of a boy being left handed is 0.1 estimate the amount of left handed people there are in the school

Answers

320 girls & 250 boys

0.2 probability     0.1 probability

320 x 0.2 = 64

250 x 0.1 = 25

64 + 25 = 89

There are approximately 89 students in the school that are left-handed.

Answer

89% of the people are left handed

Step-by-Step Explanation

To find this you have to first do 320 x 0.2

320 x 0.2= 64

To find it for boys you have to do 250 x 0.1.

250 x 0.1= 25

SO, the answer is 89%. 64% of girls and 25% of boys

Hope i helped :D

What is the x-coordinate of the point that divides the directed line segment from J to K into a ratio of 2:5? m 4 m ][xz – xı) + x, -4 -2 2 4 ​

Answers

Answer:

2

Step-by-step explanation:

im sure its 2 i hope this helps

PLEASE ANSWER ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

112°

Step-by-step explanation:

according to the question

34°+34°+x=180°

68°+x=180°

x=112°

Write the percent as a decimal.
47.63%.

Answers

0.4763 is the answer I got

Answer:

.4763

Step-by-step explanation:

A percent can be made into a decimal by moving the decimal two places to the left.

Which polynomial represents the algebra tile configuration shown?

x2 + 3x + 4
x2 + 3x −
−x2 − 7
−x2 + 3x − 4

Answers

Answer: I’m pretty sure the answer is D. −x^2 + 3x − 4

Step-by-step explanation:

Answer:-x^2 + 3x - 4

Step-by-step explanation:

Which model represents the product 3/4 x 1/3

Answers

Answer:

The first one

Step-by-step explanation:

A $40,000 car depreciates in value about 18% per year for the life of the car. Determine the value of the car after 7,8, and 9 years. What is the rate of decay?

Answers

Answer:

Value after:

7 years = $9971.42

8 years = $8176.56

9 years = $6704.78

Rate of decay = 18%

Step-by-step explanation:

A $40,000 car depreciates in value about 18% per year for the life of the car.

Determine the value of the car after 7,8, and 9 years. What is the rate of decay?

The formula for Depreciation is

FV = PV( 1 - r)^t

Where

FV = Future value

PV = Present value = $40,000

r = Depreciation rate = 18% = 0.18

t = time in years

a) After 7 years

$40,000 (1 - 0.18)⁷

= $9971.4188227

= $9971.42

b) After 8 years

$40,000 (1 - 0.18)⁸

= $8176.5634346

= $8176.56

c) After 9 years

$40,000 (1 - 0.18)⁹

= $6704.7820164

≈ $6704.78

= $9971.42

The Rate of decay = 18%

which is bigger 5.8 or 5.5

Answers

Answer:

5.8 is bigger

Step-by-step explanation:

Answer:

5.8

Step-by-step explanation:

Since they both start with 5, you look at the next number. Which ever number is bigger is the greater number.

x2=120
solve for the exact variable answer

Answers

Answer:

60 ?

Step-by-step explanation:

60×2 = 120. .

when you have a x right behind a number that means multiply

I NEED HELP WITH ALL 4 I WILL GIVE BRAINLIEST

Answers

Answer 1 8.40 precent 2 23.4% 3 16% 4 f 10%

Step-by-step explanation:

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