what is the percent of change from 90 to 18???

Answer:

Equation

x-6=4

Solution

x=10

Equation

x+3= -7

Solution

x= -10

Equation

5x= -2

Solution

x= -0.4

Equation

0.5x = 5

Solution

x= 10

All the solutions of the expressions are,

1) x = 10

2) x = -10

3) x = -0.4

4) x = 10

We have to given that,

All expressions are,

1) x - 6 = 4

2) x + 3 = - 7

3) 5x = - 2

4) 0.5x = 5

Now, We can simplify the expression as,

x - 6 = 4

x = 4 + 6

x = 10

x + 3 = - 7

x = - 7 - 3

x = - 10

5x = - 2

x = - 2/5

x = - 0.4

0.5x = 5

x = 5/0.5

x = 50/5

x = 10

Thus, All the solutions of the expressions are,

1) x = 10

2) x = -10

3) x = -0.4

4) x = 10

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Answer:

$2

Step-by-step explanation:

Step-by-step explanation:

Given, John had $30

after riding 5 rides, He had $20

( Let's subtract the balance and the balance he had after ride )

$(30 - 20)

$10

Therefore, Each ride costs = $10 ÷ 5

(dividing 10 and 5, we get 2)= $2

Hence, It took $2 for a ride.

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Answer:

C. The radii of both bases are the same.

Step-by-step explanation:

Answer: 99.2 m

Step-by-step explanation:

Given

The height of the flagpole is 35 m which is situated at 60 m

It is clear that the angle of elevation for the flagpole and building is the same, let say [tex]\theta[/tex]

from the figure, we can write

[tex]\Rightarrow \tan \theta=\dfrac{35}{60}=\dfrac{h}{170}\\\\\Rightarrow h=170\times \dfrac{35}{60}\\\\\Rightarrow h=99.166\approx 99.2\ m[/tex]

Thus, the height of building is 99.2 m

[tex] \boxed{(6, -3)} [/tex]

Step-by-step explanation:

Given the ratio 5:3

and Points A and B where A is located at (-6, 3), and B is located at (26, -13).

Let point A be [tex] (x_{1}, y_{1}) [/tex], and let point B be [tex] (x_{2}, y_{2}) [/tex].

(-6, 3) → [tex] (x_{1}, y_{1}) [/tex].

(26, -13) → [tex] (x_{2}, y_{2}) [/tex].

Let 5 be n, and 3 be m.

5:3 → n:m

[tex] (\frac{nx_{1} + mx_{2}}{n+m}, \frac{ny_{1} + my_{2}}{n + m}) [/tex].

To solve, just substitute these variables into the expressions of these coordinates to get the answer.

[tex] (\frac{nx_{1} + mx_{2}}{n+m}, \frac{ny_{1} + my_{2}}{n + m}) [/tex] →

[tex] (\frac{(5)x_{1} + (3)x_{2}}{(5)+(3)}, \frac{(5)y_{1} + (3)y_{2}}{(5) + (3)}) [/tex] →

[tex] (\frac{(5)(-6)+ (3)(26)}{(5)+(3)}, \frac{(5)(3)+ (3)(-13)}{(5) + (3)}) [/tex] →

[tex] (\frac{-30 + 78}{8}, \frac{15+ -39}{8}) [/tex] →

[tex] (\frac{78 – 30}{8}, \frac{15 – 39}{8}) [/tex] →

[tex] (\frac{48}{8}, \frac{-24}{8}) [/tex]

→

[tex] (\frac{6}{1}, \frac{-3}{1}) [/tex]

→

[tex] (6, -3) [/tex].

Thus the coordinates of B are:

[tex] \boxed{(6, -3)} [/tex]

Answer:

Step-by-step explanation:

AB:BC::5:3

let the coordinates be (x,y)

[tex]x=\frac{nx1+mx2}{m+n} \\=\frac{3(-6)+5(26)}{5+3} \\=\frac{-18+130}{8} \\=\frac{112}{8} \\=14\\y=\frac{ny1+my2}{m+n} \\=\frac{3(3)+5(3)}{5+3} \\=\frac{9+15}{8} \\=\frac{24}{8} \\=3\\[/tex]

coordinates of B are (14,3)

Answer:

The answer is c

Hope this helped :)

Answer:

-4x+8=42

-4x+8-8=42-8

-4x=34

-4x/-4=34/-4

x = -8.5

Answer: 3.90125×10⁻³

Step-by-step explanation:

The scientific notation consists of two parts

So the final version should be: a×10ˣ

-------------------------------------------------------------------

STEP ONE. Number based

We are given 3,901.25

In order to make it within the range of a, we should move the decimal to the left three places, or divide the number by 10³, which is times 10⁻³

We get 3.90125

STEP TWO: Exponent based

Since we changed the number by 10⁻³,  this will be our exponent-based.

Therefore, it is 3.90125×10⁻³

Hope this helps!! :)

Please let me know if you have any questions

Answer:

3/50 of a gallon

Step-by-step explanation:

50 / 1 = 3 / x

cross-multiply:

50x = 3

x = 3/50

Answer:

pls give brainlist

Step-by-step explanation:

definitions

complement: either of two angles whose sum is 90°.

supplement: either of two angles whose sum is 180°.

i took a pic for problems 3-8, IM NOT A BOT.

Answer:

Are there any options?

and it's not A)

so B)

Step-by-step explanation:

Answer:

(random name) drinks 3/8 of the lemonade then later drinks 6/8 of the cranberry juice before (random name) goes to bed they put the lemonade and the cranberry juice together. How much is in the cup now?

Step-by-step explanation:

Answer:

20 feet

Step-by-step explanation:

Since the given side on the first triangle is 6 feet, and the corresponding side on the second triangle is 8 feet, the second triangle will have a perimeter 8/6 times the length of the first triangle. Multiply 15 by 8/6:

15*(8/6)=

15*8/6=

120/6=

20

lmk if im wrong, hope this helps :)

Answer: 15.75°

Step-by-step explanation:

Supplementary angles simply refers to the angles that add up to 180°. The angles given in this case are 54° and 8x.

To find the value of x goes thus:

54° + 8x = 180°

8x = 180° - 54°

8x = 126°

x = 126°/8

x = 15.75°

Therefore the value of x is 15.75°

Answer:

ur steps would be 9*1*9  = 9^3

Step-by-step explanation:

Any number in the power of 0 = 1

Answer:

9^4

Step-by-step explanation:

Let's review the equation:

9 · 9^0 · 9^3

Anything to the power of 0 is equal to one, so 9^0 is one

That leaves us with 9 · 1 · 9^3

9 · 1 = 9

9^1 · 9^3 = 9^4

so..

9 · 9^3

Answer:

C

Step-by-step explanation:

Brand B of shoes is most likely to have defects in their shoes.

A relative value indicating hundredth parts of any quantity.

Brand A was found to have 5 out of 600 pairs of shoes with a defect.

Brand B was found to have 5 out of 250 pairs of shoes with a defect.

As per the data the brand B shoes get more often defected.

For every 250, 5 are defected,

The percent probability for brand A is

= 5/250*100

= 2%.

while Brand B

=5/600*100

= 0.0083%.

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Answer:

Here, we are given two positive numbers having HCF as 12 and their product as 6336. ... Hence, we get two pairs of numbers, (12 and 528) and (48 and 132). Therefore, the correct answer is option A.

Answer:

the square root of 7 squared is 7 since the square roots cancels the square

Answer: C / 100 units^2

Step-by-step explanation:

The equation to calculate the area of a rhombus is

[tex]Area = \frac{ab}{2}[/tex]

In the picture, you are given a & b.

a equals the entire vertical line. So 5 + 5 = 10. 10 is a

b equals the entire horizontal line. So 10 + 10 = 20. 20 is b.

According to the equation you multiply a times b.

[tex]Area = \frac{(10)(20)}{2}[/tex]   10 x 20 = 200

200 divided by 2 equals 100

so the areas = 100

Answer:

113.04 cm³

Step-by-step explanation:

diameter = 6cm

so radius = 3cm

Volume of sphere = [tex]\frac{4}3}[/tex][tex]\pi r^3[/tex]

= 4 * 3.14 * 3 * 3 *3 / 3

=  4 * 28.26

= 113.04 cm³

Answer:

The side lengths of the larger polygon are;

15 cm

20.625 cm

16.875 cm

9.375 cm

13.125 cm

Step-by-step explanation:

Firstly, we need to calculate the perimeter of the first polygon

Mathematically, we can get this by adding the side lengths together

We have this as;

5 + 7 + 8 + 11 + 9

= 40 cm

so we have the ratio of the lengths of both as;

75 cm/40 cm = 1.875

Now, we simply will multiply the lengths of the smaller polygon by 1.875

So we have the side lengths of the bigger polygon as;

1.875 * 5 = 9.375 cm

1.875 * 7 = 13.125 cm

1.875 * 8 = 15 cm

1.875 * 9 = 16.875 cm

1.875 * 11 = 20.625 cm

Given:

Number of miles covered = [tex]2\dfrac{1}{2}[/tex]

Length of each lap = [tex]\dfrac{5}{6}[/tex] of a mile.

To find:

The number of laps.

Solution:

We know that,

[tex]\text{Number of laps}=\dfrac{\text{Number of miles covered}}{\text{Length of each lap}}[/tex]

[tex]\text{Number of laps}=\dfrac{2\dfrac{1}{2}}{\dfrac{5}{6}}[/tex]

[tex]\text{Number of laps}=\dfrac{\dfrac{5}{2}}{\dfrac{5}{6}}[/tex]

[tex]\text{Number of laps}=\dfrac{5}{2}\times \dfrac{6}{5}[/tex]

[tex]\text{Number of laps}=3[/tex]

Therefore, Grayson ran 3 laps.

Answer: 233928.6902 ≈ 233929

Step-by-step explanation:

Answer:

× = 4.56 and y = 36.56

Step-by-step explanation:

Ayan sagot

Answer:

x=15.56    y=30.05

Step-by-step explanation:

SOH-CAH-TOA (O=opposite, A=adjacent, H=hypotenuse)

Answer:

3rd one

Step-by-step explanation:

Answer: 65.22%

Step-by-step explanation: 15 is more than half of 23 which means it can’t be the other options because the others aren’t more than half.

65.22 % of teachers ordered the salad bar

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

According to the question

A school cafeteria offers three lunch options on Mondays:

Spaghetti, sub sandwiches, or salad bar.

Percentage of teachers ordered the salad bar

Total number of teachers = 23

Total number of teachers ordered the salad bar = 15

= [tex]\frac{15}{23}[/tex]

= 0.6522

= 65.22%

Thus, 65.22 % of teachers ordered the salad bar

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Answer:

Step-by-step explanation:

6^3 is the error, 6^3 is 216.

the correct volume is   904.32

Answer:

Step-by-step explanation:

6³ is not equal to 18, that is 6x3

6³= 6x6x6=216

so the correct volume is V= 904.7 cm³