Evaluate the expression 3n + 7 - 10, for n=5

Answers

Answer 1

Answer:

12

Step-by-step explanation:

3(5)+7-10

15+7-10

22-10

12

Answer 2

Answer:

12

Step-by-step explanation:

3(5) + 7 - 10

=12


Related Questions

3x + 7 = -8
Help me!

Answers

Answer: x=-5

First, subtract 7 from both sides.
That equals -15.
Then, you have “3x=-15”
All you do TJEM is divide -15 from 3x, which equals -5
Your goal is to have x by itself so
3x + 7 = -8
Subtract 7 by both side leave you with
3x = -15
Then you divide 3 both side leave you with
X = -5
The answer is x = -5
Hope this help:)

What is the unit price of a 6 ounce tube of toothpaste that costs $3.78. Round to the nearest cent if necessary.

Answers

Answer:

the price is 4 dollars

Step-by-step explanation:

Answer:

$0.63 per unit

Step-by-step explanation:

you divide 3.78 by 6 and you get 0.63 if rounded 0.60

srry if it's incorrect

8x+12-8x+15+15x-22-x

Answers

The answer would be 14x+5 I’m pretty sure

Please help i’m actually crying rn give step by step

Answers

Answer:

X = 70 degrees

Step-by-step explanation:

The way to figure this out is by taking the angle of the 30 degrees and applying it to the opposite side of its self then just add it to the 80 degrees which will equal 110 and since a straight line has 180 degrees just subtract 180 by 110 and that will be the value of x because the lines are parallel and the line that goes through both lines will always have the same angle.

AngleFBC and AngleCBG are supplements, AngleDBG and AngleDBF are supplements, and AngleCBG Is-congruent-to AngleDBF. 4 lines are shown. A horizontal line with points F, B, G intersects a vertical line with points A, B, E at point B and forms a right angle. Another diagonal line with points D, B, C intersects the other 2 lines at point B between angle F B E and angle A B G. A fourth line intersects 3 lines at points A, C, G. By the congruent supplements theorem, what can you conclude? AngleCBG Is-congruent-to AngleDBG AngleFBC Is-congruent-to AngleDBG AngleCBG is supplementary to AngleDBF. AngleFBC is supplementary to AngleDBG.

Answers

Answer:

b

Step-by-step explanation:

What is another way to describe a dilation

size change

flip

turn

slide

Answers

Answer:

Size change

Step-by-step explanation:

You just make it proportionally smaller

Answer: size change

Step-by-step explanation:

size change

PLEASE THIS IS DUE AT MIDNIGHT LOL:

A plane flies 455 miles with the wind in the same time that it takes to fly 400 miles against the wind. If the wind is blowing at a speed of 12mph, whats the speed of the plane in still ai

Answers

Answer:

186.55 mph

Step-by-step explanation:

Let the speed of the plane be s

The speed of the plane in the same direction is

s + 12

The speed of the plane against wind is

s - 12

Time = distance/speed

455/(s + 12) = 400/(s - 12)

Solving for s

400(s + 12) = 455(s - 12)400s + 400*12 = 455s - 455*12455s - 400s = (400 + 455)*1255s = 10260s = 10260/55s = 186.55 mph

Parallelogram JKLM is reflected across a horizontal line through its center and then translated down and to the left to produce parallelogram QTSR
K
110°
R
S
9 ft
70°
M 12 ft
L
T
m
What is true about the angles and side lengths of parallelogram QTSR?
Enter the correct answers in the boxes

Answers

Answer:

[tex]\huge\boxed{Q = 110 \textdegree, \ ST = 9 \ \text{ft}}[/tex]

Step-by-step explanation:

When we reflect and transform a figure, the angle lengths nor the side lengths are touched. The side length only changes if we dilate or stretch the figure, and the angle length only changes if we stretch the figure.

Therefore, we know the information is going to be the exact same. We just have to figure out what corresponds to what from JKLM to QTSR.

If we reflect a figure across a horizontal reflection line through its center, the figure will just flip sides. M will be J, L will be K, etc.

When we translate this down, nothing changes except its position. So we can pretend these two shapes are right on top of each other for now.

When we move these right on top of each other, we can see that Angle J overlaps with Angle Q. Since they don't have any weird intersects, we know that angle J will be equal to Angle Q. Since we already know J is 110°, we know Q is also 110°.

When we move it on top, we also see that KL overlaps with ST perfectly. Since we know KL is 9, that must mean ST is also 9.

Hope this helped!

The time, in seconds, that it takes a pendulum to swing back and forth is modeled by the equation below. f (l) = 2 pi StartRoot StartFraction l Over 32 EndFraction EndRoot, where l is the length of the pendulum in feet What is the approximate length of a pendulum that takes 2.4 pi seconds to swing back and forth?

Answers

Answer:

46.08 feet.

Step-by-step explanation:

Given that, for length, [tex]l[/tex] feet, the time period, [tex]f(l)[/tex], of the pendulum is

[tex]f(l)=2\pi\sqrt{\frac{l}{32}}[/tex].

As the time period equals the time taken by the pendulum in one back and forth motion, so, actually, the given [tex]2.4\pi[/tex] seconds to swing back and forth is the time period.

Let [tex]l_0[/tex] feet be the length of the pendulum for the time period [tex]2.4\pi[/tex] seconds, so

[tex]f(l_0)=2.4\pi[/tex]

[tex]\Rightarrow 2\pi\sqrt{\frac{l_0}{32}}=2.4\pi[/tex]

[tex]\Rightarrow \sqrt{\frac{l_)}{32}}=1.2[/tex]

[tex]\Rightarrow \frac{l_0}{32}=(1.2)^2[/tex] [squaring on both the sides]

[tex]\Rightarrow l_0=1.44\times32[/tex]

[tex]\Rightarrow l_0=46.08[/tex]

Hence, the approximate length of a pendulum that takes [tex]2.4 \pi[/tex] seconds to swing back and forth is 46.08 feet.

Answer:

the answer is d on edge 2020

Step-by-step explanation:

need help please answer due tonight

Answers

Answer: I think 9

Step-by-step explanation:

Ok The correct answer is D. 9

I’m struggling and I need help

Answers

Answer:

54, 69, 99.

Step-by-step explanation:

Substitute the given value into the function and evaluate.

Answer:

Step-by-step explanation:

f(x) = 5x +4

f(10) = 5*10 + 4

      = 50 +4

      = 54

f(13) = 5*13 + 4

       = 65 + 4

       = 69

f(19) = 5*19 + 4

      = 95 + 4

     = 99

Anybody wanna help?please

Answers

Answer:

ilysm sm

Step-by-step explanation:

I hope u get the answer I need points IM SO SORRY

A supermarket offers 8 bags of pretzels for $10. What is the cost of 1 bags of pretzels?

Answers

Answer:

$1.25

Step-by-step explanation:

Answer:

$1.25

Step-by-step explanation:

If 8 bags are $10, 1 bag will be 10/8.

10/8=1.25

1 bag of pretzels costs $1.25.

Hope this helps!! Have a great day C:

a rectangular tank is 76cm long, 50cm wide and 40cm high, how many litres of water can it hold?​

Answers

Answer:

152,000 litres

Step-by-step explanation:

To answer this question, you have to find the volume of the tank:

76 × 50 × 40 = 152,000 litres

I hope this helps!

The elevation of the harbor is ____ than the elevation at sea level.

1. Less

2. greater

Answers

Answer: less

Step-by-step explanation:

if when you say harbor you’re referring to were ships are docked im pretty it doesn’t get as elevated as the sea

An electronics store is selling the latest video game for $59.00. If there is a 10% sales tax, what is the actual cost of the game?

Answers

Answer:

£53.10

Step-by-step explanation:

find 10% of £59=£5.90

then do £59-£5.90=£53.10

Solve for x 3(x + 1) = −2(x − 1) − 4

Answers

Answer:

x = -1

Step-by-step explanation:

distribute:

3x + 3 = -2 (x -1) -4

distribute:

3x + 3 = -2x + 2 - 4

calculate difference:

3x + 3 = -2x - 2

move variable to left and change sign

3x + 2x + 3 = -2

3x + 2x = 2 - 3

collect like terms

5x = -2 - 3

5x = -5

x = -1

Answer:

x = -1

Step-by-step explanation:

3 ( x + 1 ) = -2 ( x - 1 ) - 4

distibute

3x + 3 = -2x + 2 - 4

simplify

3x + 3 = -2x - 2

inverse operations

3x + 3 = -2x - 2

+2x        +2x

5x + 3 = -2

    -3      -3

5x = -5

/5     /5

x = -1


please help as quick

Answers

32 or 2

Step-by-step explanation:

4×4×4×4= 256

2×2×2====8

Then 256÷8=32 or 32/1

Which table represents a linear function?

Answers

Answer:

a

Step-by-step explanation:

convert the decimal below to a fraction in simplest form 0.745

Answers

Answer: 149/200

Step-by-step explanation:

Hope this helps

what do you think proof is

Answers

Answer:

proof is where you have something to explain/show what you saw to people when they don't believe you.

helpp asappp it’s just one question!!!

Answers

Not only she buying candy she getting diabetes
The answer is 9 pounds

What is the value of r for 19 and 20?

Answers

Answer:

19.) r = -4    20.) r = 1

Step-by-step explanation:

19.) Because we know the slope and have some points, we can use point-slope form to find the equation.

Point-slope form is:

y - y1 = m(x - x1)

Substitute the numbers into the equation:

y - 3 = 7/6(x - 1)

y - 3 = 7/6x -7/6

y = 7/6x + 11/6

Now that we know the equation, we can put in the x value to find the y (In this case, y = r):

r = 7/6(-5) + 11/6

r = -35/6 + 11/6

r = -4

20.) Because the slope is undefined, that means on the graph, the line will appear straight and vertical. This means the equation will be something like x = a number.

We have the point (1,4). Since we know that the x value will never change, we know that r will have to equal 1 as well.

r = 1

A half-marathon is 13.1 miles long. There is a water station every 1 1/3 miles along the race trail and at the finish line. How many water stations are needed for the half-marathon?
choices
15
13
10
11

Answers

Answer:

10 water stations are needed

Step-by-step explanation:

To get the number of water- station needed, we simply divide the total length of the half marathon by the distance where we can find a water station

mathematically,

that would be 13.1 divided by 1 1/3

= 13.1 divided by 4/3

= 13.1 * 3/4 = 9.825 which is approximately 10

Please help. ghfhgndgvhnhfbj.

Answers

Answer:

35

Step-by-step explanation:

i think

hope ts helps

Answer:

190

Step-by-step explanation:

I am so sorry but I dont know how to explain it. I am so sorry.

Solve the inequality.
y - (-5) < 7

Answers

Answer:

y > 2

Step-by-step explanation:

a double negative is basically a + sign, so its y + 5> 7, and we want Y alone so we subract 5 from 7 to get Y > 2

Answer:

[tex]y < 2[/tex]

Step-by-step explanation:

[tex]\begin{aligned}y-(-5)+(-5)&< 7+(-5)\\y& <7-5\\y&< 2\\\text{or}\\y-(-5) &= y+5\\\therefore\,y+5& <7\\y+5-5 &<7-5\\y&<2\end{aligned}[/tex]

3) The Blackweld family is shopping for school uniforms. Pants cost $5
more than skirts. Six skirts cost $4 less than 4 pairs of pants. How much
does 1 skirt cost?

Answers

Answer:

$8

Step-by-step explanation:

Let the pants cost = pSkirts cost = s

We got equations

p = s + 56s = 4p - 4

Substituting p and solving for s

6s = 4(s + 5) - 46s = 4s + 20 - 46s - 4s = 162s = 16s = $8

3.
Use the given information to draw a diagram and then prove the statement.
GIVEN: NO =PQ, M is the midpoint of NO. M is the midpoint of PQ.
PROVE: NM = PM

Pls help I don’t understand this

Answers

Step-by-step explanation:

NO and PQ are congruent segments (have the same length), and both have the same midpoint M.

NO ≅ PQ, given.

NM ≅ ½ NO, definition of midpoint.

PM ≅ ½ PQ, definition of midpoint.

PM ≅ ½ NO, substitution.

PM ≅ NM, substitution.

twinks are a social experiment

Answers

Answer:

Step-by-step explanation:

whT

Write the equation of a line that is parallel to y = -0.75x and that passes through the point (8,0).

Answers

y = -0.75x - 6

It starts out as:
y - 0 = -0.75(x - 8)
Enter the point into the equation subtracting the x-value from the x-variable and the y-value from the y-variable. The slope must be the same since it is parallel. Then distribute and simplify
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