Complete the steps to find the value of x.

Answer:

-7

Step-by-step explanation:

Plug the value in.

4(-3)+5=-12+5=-7

Hope I helped!

The sum of 312+18 is 330.

To simplify the sum of 312 + 18, we add the two numbers together:

When three hundred twelve is added with eighteen we get three hundred thirty.

312

+18

________

330

Hence, the value of 312+18 is 330.

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ6

Answer:

Step-by-step explanation:

5^2=3^2+a^2

25=9+a^2

16=a^2

take the square root of both

4=a

Answer:

40.9

Step-by-step explanation:

8+10+8.9+10+4=40.9

hope this helps :3

if it did pls mark brainliest

Answer:

40.9 ft

Step-by-step explanation:

Perimeter is the sum of lengths of all outer sides of the shape. Since the rectangle has two pairs of parallel lines of the same length... It is safe to assume that the unmarked side length is 10 ft (just like it's parallel counterpart)

Now it is a simple matter of adding all of the outer sides.

8ft + 10 ft + 10 ft + 8.9 ft + 4 ft = 40.9 ft

If i just knew the answer i would tell you buti dont know sorrry

Answer:

1. A. 9

B. - 51

2. A. (-3,2)

B. (5,-2)

3. A. (11,-3) B. (11,1) C. They have the same x

Answer:

0.05357142

Step-by-step explanation:

Answer:

$1540

Step-by-step explanation:

3/2 x 11/2 = 19 1/4

19 times 4 to find how many 1/4s fit in 19 = 76

Add 1/4 = 77

77 x 2 = 154 feet

154 x 10 = $1540

Answer:

1,120

Step-by-step explanation:

I don’t really know but it’s 1,120

Answer: The newspaper has 2500 readers.

Step-by-step explanation:

Given: The local newspaper has letters to the editor from 50 people.

This is the 2% of all newspaper readers.

Let x be the number of all newspaper readers.

Then. 2% of x= 50

[tex]\Rightarrow\ 0.02x=50\ \ [\text{To remove }\% \text{we divide number by 100}]\\\\\Rightarrow\ x=\dfrac{50}{0.02}=\dfrac{5000}{2}=2500\\\\\Rightarrow x=2500[/tex]

Hence, the newspaper has 2500 readers.

Answer:

39

Step-by-step explanation:

4 cubed is 64 and 64-25 is 39

Answer:

A and E

Step-by-step explanation:

(1, −1), (−2, −7), (0, 1), (−1, −1) and (−5, 2), (2, 6), (3, 2), (4, −5) are functions because each x value corresponds to exactly one y value. a function must have only one output value for each input value.

Answer:

It would be better to buy the regular size

Step-by-step explanation:

For regular size You would divide

16/3.36 = 4.7619

For family size you would divide

40/7.60 = 5.2631

As you can see with the regular size you would pay about $4.75 cents for every ounce but if you buy the family size then you would be paying about $5.26 for every ounce

Answer:

x=4 y=0

Step-by-step explanation:

3x+5y=12

-(x-3y=4)

3x+5y=12

3(-x+3y=-4)

3x+5y=12

-3x+9y=-12

14y=0

y=0

Then, substitute the y into the equation to find x

x-3(0)=4

x=4

Answer:

10% of 60 = 6

25% of 60 = 15

50% of 60 = 30

20% of 60 = 12

Step-by-step explanation:

Answer:

10% = 6

25% = 15

50% = 30

20% = 12

Step-by-step explanation:

10 %  just drop the 0 from 60.    1/10 of 60 is 6

25% is 1/4.  Divide: 60/4 =15

50% is half.  Divide 60/2 = 30

20% is 1/5   Divide 60/5 =12

Step-by-step explanation:

1/3 divide by 75cm3=?  

divide and see what u get

Answer:26.85 miles

Step-by-step explanation: 7.25+12.3+7.3=26.85

Answer:

2 hours: 27 miles, 3 hours: 40.5 miles, 3.5 hours: 47.25 miles

Step-by-step explanation:

1.) If a hiker hikes 9 miles in 2/3 of an hour, he will hike 4.5 (Half of 2/3 is 1/3 and half of 9 is 4.5) miles in 1/3 of an hour and 13.5 miles per hour. (1/3 times 3 gives us a whole and 4.5 times 3 is 13.5)

2.) 2 hours: 13.5 * 2 = 27 miles

3.) 3 hours: 13.5 * 3 = 40.5 miles

4.) 3.5 hours: 13.5 * 3.5 = 47.25 miles

He rides 27 miles in two hours, 81/2 miles in 3 hours, and 189/4 in 3.5 hours.

A fraction is written in the form of p/q, where q ≠ 0.

Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.

Given, A biker cycles 9 miles in 2/3 of an hour.

∴ He rides (9×3/2) is (2/3)×(3/2) hours.

He rides 27/2 miles in 1 hour.

So, He rides (27/2)×2 in 2 hours.

27 miles in 2 hours.

He rides (27/2)×3 miles in 3 hours.

81/2 miles in 3 hours.

He rides (27/2)×(7/2) miles in 7/2 hours.

189/4 miles in 7/2 hours.

learn more about fractions here :

https://brainly.com/question/10354322

#SPJ2

Answer:

1 cupcake is made in 1.75 minutes.

1.75 minutes

Step-by-step explanation:

Divide 70 by 40 = 1.75.

49/28=1.75

The constant of proportionality of the given data is 0.57.

The constant of proportionality is the ratio of two proportional values at a constant value.

Now it is given that,

Time taken for icing 40 cupcakes = 70 minutes

∴ Icing of cupcakes in 1 minute = 40/70

                                                    = 0.57

Time taken for icing 28 cupcakes = 49 minutes

∴ Icing of cupcakes in 1 minute = 28/49

                                                    = 0.57

⇒ constant of proportionality = 0.57

Thus, the constant of proportionality of the given data is 0.57.

To learn more about constant of proportionality:

https://brainly.com/question/10159347

#SPJ6

Answer:

3:9

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

27:81

= 27/81

=3/9

=3:9

it could be reduced to 1:3 but because the alternatives does not include, it 3: 9

please reward me by marking me as the brainliest.

Answer: Equilateral triangles are also right triangles sometimes. All angles of an equilateral are congruet sometimes.

Answer:

???????................ .mm

Answer:

???????................ .mm

Step-by-step explanation:

The resultant vector makes a 6.3-degree angle with the horizontal force, the correct option is A.

The resultant angle between the vectors is given by

[tex]\rm \theta = tan^{-1} \dfrac{B sin\theta}{A +B cos\theta}[/tex]

The two forces have magnitude of 17.3 and 42.5 pounds.

The angle of the resultant vector is

[tex]\rm \rm \theta = tan^{-1} \dfrac{17.3\; sin\; 21.9}{42.5 +17.3 cos\;21.9}[/tex]

[tex]\rm \theta = tan^{-1}[/tex] (6.453/58.55)

[tex]\rm \theta[/tex] = 6.2886 degree = 6.3 degree.

Therefore, the resultant vector makes a 6.3-degree angle with the horizontal force.

To know more about Resultant vector angle

https://brainly.com/question/18794275?referrer=searchResults

#SPJ2

Answer:

6.3 on edge

Step-by-step explanation:

Answer:

Both of these statements are correct.

Step-by-step explanation:

Adjacent means next to each other, vertical angles are like angles 2 and 5, where they are right across from each other.

I hope this helps/ makes sense!!!

Answer:

-19.68

Step-by-step explanation:

(0.2 + (-5) × (4.1)

-4.8 × (4.1)

-19.68

Answer:

-19.68

Step-by-step explanation:

(0.2 + (-5)) * (4.1)

(-4.8) * (4.1)

-19.68

When given the equation where you have to add a negative, it's similar to subtraction. Where the positive number will be subtracted from the negative number.

Answer:

21.3188kg or 21.3kg

Step-by-step explanation:

As one kilogram is equal to 2.20462 pounds we can calculate the weight in kilograms by taking 2.20462 / 47 and we get 21.3188kg

Answer:

whats the question?????

Step-by-step explanation:

Answer:

The answer is B because it is only the measure of the polygon

Step-by-step explanation:

let eqn be y = mx + b.

m = (-2 - 8)/(1 - 3) = 5

sub (3, 8):

8 = 5(3) + b

b = -7

therefore equation of the line is y = 5x - 7

Topic: coordinate geometry

If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!

Answer:y = 5x - 7

Step-by-step explanation: /