The marked price of a machine is $1200. How much will it cost if there is a discount of 20%? *

Answer:

Ranger's simplified expression was 0.1x + 18.2

The correct answer is the first option.

Step-by-step explanation:

To simplify the given expression

3(2.7x + 5) – 2(4x – 1.6)

First, we will open the brackets by distributing 3 and 2, that is

(3×2.7x) + (3×5) -(2×4x) -(2×-1.6)

Now, we will get

8.1x + 15 - 8x +3.2

Now, collect like terms,

8.1x - 8x + 15 + 3.2

Then, we will get

0.1x + 18.2.

Hence, Ranger's simplified expression was 0.1x + 18.2.

The correct answer is the first option.

Answer:

It's A

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

7-9=-2 hope this helps

Answer: 33 groups

Step-by-step explanation:

Number of people that signed for help = 130 people

Number of people that can join a group = 4.

Number of groups that will be formed will be:

= Number of people that signed for help / Number of people that can join a group

= 130/4

= 32.5

= 33 groups

Since there'll be a remainder of 2 people, they will form a new group making 33 groups.

Answer:

m∠X= 22°

Step-by-step explanation:

In ΔVWX:

m∠V=(7x−1) ∘

m∠W=(4x+16) ∘ ,

m∠X=(3x−17) ∘ . Find M∠X.

Step 1

We find the variable x

The sum of angles in a triangle is 180°

Hence,

ΔVWX = m∠V + m∠W +m∠X

180° = (7x - 1)° + (4x + 16)° + (3x - 17)°

180° = 7x - 1 + 4x + 16 + 3x - 17

180° = 7x + 4x + 3x - 1 + 16 - 17

180° = 14x -2

Collect like terms

180° + 2 = 14x

182° = 14x

x = 182°/14

x = 13°

Step 2

We find m∠X

m∠X = (3x−17) ∘

x = 13

m∠X = (3 × 13 − 17)°

m∠X = (39 − 17)°

m∠X = 22°

Answer:

your right

Step-by-step explanation:

its an obtuse angle so each equation should equal 180

Hint: (9y+7) = 180 and (2y+98) = 180

hope this helps pls mark me brainliest

Answer: 65 minutes

Step-by-step explanation: 26 / 4 = 6.5

6.5 tables per 10 minutes so 6.5 x 10 = 65 min

Answer:

1 hr and 5 minutes

Step-by-step explanation:

here's why... because 4 goes into 26 6 times with a remainder of 2 and there is 5 mins for every 2 tables and 6 times 10 is 60 which equals a hour and that will be a hour and 5 mins

Answer:

Step-by-step explanation:

#22

The equation in standard form is:

When the quadratic equation has equal roots its discriminant is zero

Answer:

acute angle

Step-by-step explanation:

acute = angles that are less than 90⁰

The triangles which have three angles that measure less than 90° are:

acute triangle, equilateral triangle

"An acute triangle is a triangle with three acute angles that means each angle measures less than 90°."

"An equilateral triangle is a triangle where all sides and angles are equal. Each angle of an equilateral triangle measures 60°. "

"A right triangle is a triangle where one of the angle measures 90°. "

"A triangle that has two sides of equal length is called as an isosceles triangle. Also, two angles that are opposite to equal sides are always equal and measures less than 90°. "

For given question,

As one of the angle of right triangle measures 90°, it is not a required triangle.

Also, for isosceles triangle, although two equal angles measure less than 90°, the third angle can be 90°. So, an isosceles triangle is not a required triangle.

Therefore, the triangles that have three angles that measure less than 90° are:

1) acute triangle

2) equilateral triangle

Learn more about triangles here:

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Answer:

8.5×10^-5

Step-by-step explanation:

Answer:

The correct answer would be A I believe

Answer:

x = 146°

Step-by-step explanation:

(all angles in a triangle add up to 180°)

180 - 115 - 31 = 34

(supplmentary angle)

180 - 34 = 146°

Answer:

No

I hate pokemon.

Answer:

X = 144

Step-by-Step Explanation

Answer:

x < 11

Step-by-step explanation:

35 > -5(4 - x)

35 > -20 + 5x

55 > 5x

x < 11

Topic: Inequalities

If you like to venture further, feel free to check out my insta (learntionary). It would be best if you could give it a follow. I'll be constantly posting math tips and notes! Thanks!

Answer:

The intial fee is $5

The equation to represent this is: y=12x+5

12 is the cost per hour    x=hours  y=total cost  

Step-by-step explanation:

77-41=36

36/3=12

12*6=72

77-72=5

Answer:

-6

Step-by-step explanation:

Answer:

3 is a whole number but 2x is 2 multiplied by a variable

Answer:

2.09 is the answer now what

Answer:

√400 x √100 = 40,000  

√40,000 = 200  

So your answer is 200 x 10.

Hope this Helps!!

Step-by-step explanation:

The value of the simplified form is,

⇒ 20 x¹⁰

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

√ 400 x¹⁰⁰

Now, We can simplify as;

⇒ √ 400 x¹⁰⁰

⇒ 20 x¹⁰

Thus, The value of the simplified form is,

⇒ 20 x¹⁰

Learn more about the mathematical expression visit:

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Answer:

y = 1/3 x + 2

Step-by-step explanation:

We see points (-3, 1) and (3, 3).

We also see point (0, 2), the y-intercept.

To go from (-3, 1) to (3, 3), go up 2 and right 6.

slope = m = rise/run = 2/6 = 1/3

y = mx + b

y = 1/3 x + 2

Answer:

Step-by-step explanation:

Since the triangles are equivalent,

3x - 2 = 5

Solve for x.

3x = 7

x = 7/3

Answer:

B. 7 zebra fish, 8 neon tetras

Step by step explanation:

First let's do process of elimination.

X A) 8 x 2.20 = 17.6, 7 x 1.80 = 12.6, 17.6 + 12.6 = 30.2

✔ B) 7 x 2.20 = 15.4, 8 x 1.80 = 14.4, 15.4 + 14.4 = 29.8

X C) 6 x 2.20 = 13.2, 9 x 1.8 = 16.2, 13.2 + 16.2 = 29.4

X D) 9 x 2.20 = 19.8, 6 x 1.8 = 10.8, 10.8 + 19.8 = 30.6

Answer:

Step-by-step explanation:

2 1/2* -4 3/5=

5/2*-23/5

-23/2 or -11 1/2

Answer:

Let

[tex]\qquad\quad {:}\longmapsto\sf The\: breadth =x\: ft[/tex]

[tex]\qquad\quad {:}\longmapsto\sf The\:length=x+1ft[/tex]

[tex]\qquad\quad {:}\longmapsto\sf Area=210ft^2 [/tex]

[tex]{\boxed {\sf Area=length\times Breadth}}[/tex]

[tex]\qquad\quad {:}\longmapsto\sf x (x+1)=210 [/tex]

[tex]\qquad\quad {:}\longmapsto\sf x^2+x=210 [/tex]

[tex]\qquad\quad {:}\longmapsto\sf x^2+x-210=0 [/tex]

[tex]\qquad\quad {:}\longmapsto\sf x^2+15x-14x-210=0 [/tex]

[tex]\qquad\quad {:}\longmapsto\sf x (x+15)-14 (x+15)=0 [/tex]

[tex]\qquad\quad {:}\longmapsto\sf (x+15)(x-14)=0 [/tex]

[tex]\qquad\quad {:}\longmapsto\sf x+15=0\:or\:x-14=0 [/tex]

[tex]\qquad\quad {:}\longmapsto\sf x=-15\:or\:x=14 [/tex]

Hence correct value

[tex]\qquad\quad {:}\longmapsto\sf x=14[/tex]

[tex]\qquad\quad {:}\longmapsto\sf Breadth =x=14ft[/tex]

[tex]\qquad\quad {:}\longmapsto\sf Length=x+1=14+1=15ft [/tex]

Answer:

25

Step-by-step explanation:

Answer:

25

Step-by-step explanation:

not a 100% sure just trying to help

Answer:

A

Step-by-step explanation:

Its the first letter of the English alphabet

Answer:

Please give more context to what you desire help for.

Answer:

16cm

Step-by-step explanation:

Step one:

given

the scale of the map

[tex]2 cm: 8 km.[/tex]

Step two:

so if a scale of 2 cm represents 8 km.

       then let xcm be 64km

cross multiply we have

[tex]x*8= 64*2[/tex]

8x= 128

divide both sides by 8

[tex]x= 128/8\\\\x=16cm[/tex]

The map distance is 16cm

Answer:

y=4x+4

Step-by-step explanation:

substiute the 1 for the y and the 8 for the x in the form (8=4*1+b)

subtract for so it cancels out on the right and leaves you with 4 on the left equals b on the right.

Answer:

He started with $190

Answer:

190

Step-by-step explanation:

because $70 + $120 gives us $190 of how we got the answer is before he spending the 70$ he had $190.