15% of y is 30 what equation could be used to solve

Answer:

30-60-90 triangle

Angle BCD = 60

Hypotenuse is 2 times the length of short leg

The long leg is [tex]\sqrt{3}[/tex]  times the short leg

BC = 20

Step-by-step explanation:

I think the explanations are in the questions.

You need to memorize the relationships

average speed= total distance/total time taken

60+45= 105miles

1 mile= 1.609

105×1.609= 168.945km

168.945/4

Hence answer = 33.79 km/hr

Answer:

To find Alex's average speed for the whole journey, we can use the formula:

Average Speed = Total Distance / Total Time

Let's calculate the total distance traveled first:

Distance1 = 60 miles/hour * 3 hours = 180 miles

Distance2 = 45 miles/hour * 2 hours = 90 miles

Total Distance = Distance1 + Distance2 = 180 miles + 90 miles = 270 miles

Next, let's calculate the total time taken for the whole journey:

Total Time = 3 hours + 2 hours = 5 hours

Now, we can find the average speed:

Average Speed = 270 miles / 5 hours = 54 miles per hour

So, Alex's average speed for the whole journey is 54 miles per hour.

Please mark as Brainliest

Answer:

True

Step-by-step explanation:

The equation 2x² - 3x + 1 = 0 is in quadratic form.

Answer:

True.

Step-by-step explanation:

The equation [tex]2x^{2} - 3x + 1 = 0[/tex] is in quadratic form because it meets the quadratic formula: [tex]Ax^{2} + Bx + C = 0[/tex].

Answer:

Explicit rule, because you can find the 40th term directly using the explicit rule. You would need to find the first 39 terms before finding the 40th terms using recursive rule.

hope this helps...

Answer:

The answer is D : (10,9)

Step-by-step explanation:

As you can see... the cordinate (10,9) is far away from the other points, therefore it is clearly the outlier of the data set

Answer:

Penta Trinomial

Step-by-step explanation:

Highest power is 5 (penta)

Highest number of term is 3 (tri)

Answer:

Step-by-step explanation:

Given polynomial

It has 3 terms so is trinomial

It has degrees as

As the greatest degree is 6, this expression is 6th degree trinomial

Answer:

its 11:09 pm......

Step-by-step explanation:

are u on pc?

9514 1404 393

Answer:

  9) AB, AC, BC   or   c, b, a

  10) EG, (EF, FG)   or   f, (e, g)

Step-by-step explanation:

Sides are in the same order as their opposite angles. Generally the angle has an upper-case letter for its name, and the opposite side has the same lower-case letter for its name.

__

9) angle C is 32°, opposite side c, which is also labeled AB

  angle B is 68°, opposite side b, which is also labeled AC

  angle A is 80°, opposite side a, which is also labeled BC

Shortest to longest, the sides are c, b, a.

__

10) angle F is 50°, opposite side f, which is also labeled EG

The remaining two angles are both 65°, so have no smallest/largest order. Likewise their opposite sides are the same length, so have no shortest/longest order.

  angles E and G are opposite sides e and g, also labeled FG and EF, which are the same length

The shortest side is f; sides e and g are longer and are the same length.

Answer:

1.x,y is the answer to first question

2.y=2x+5

Answer:

10:12, 5:24, 9:13+1/3, 3:40, 20:6, 7:17+1/7

Step-by-step explanation:

You simply divide 120 by each of the numbers.

120/10=12, 120/5=24, 120/9=40/3, 120/3=40, 120/20=6, 120/7=12+1/7

what values of a are the following expressions true?

|a-5| =5-a

Try putting values of ( a )

picking random number :-

Putting a = 6 :-

[tex] |a-5| =5-a \\ |6-5| =5-6 \\ | 1| = -1 \\ 1 \cancel = ( - 1) [/tex]

so a is not equal to 6

Putting a = 8

[tex]|a-5| =5-a \\ |8 - 5| =5-8 \\ |3| = - 3 \\ 3 \cancel = - 3[/tex]

a is also not equal to 8

so above values we can find a common result that a not equal to value bigger than 5

picking random number

Putting a equal to 1

[tex]|a-5| =5-a \\|1-5| =5-1 \\ | - 4| =4 \\ 4 = 4[/tex]

a can be equal to 1

Putting a equal to -3

[tex]|a-5| =5-a \\| - 3-5| =5-( - 3) \\ | - 8| = 8\\ 8 = 8[/tex]

a can be equal to -3

So we can have a common result that a can be equal to values less than 5

putting a equal to 5

[tex]|a-5| =5-a \\ |5 - 5| =5-5 \\ |0| =0 \\ 0 = 0[/tex]

So we can say a can be equal to 5

Answer:

6x^2-4xdot+5x-2dot+3

Step-by-step explanation:

correct me if im wrong i dont do this work yet

Answer:

(-2, -9)

explanation:

original coordinates of B: (7, 9)

use the formula: (x, y) ---> (x, -y)

If horizontally shifted there will be change in x axis,

Answer: $1.08

Step-by-step explanation:

30cent x 4 = 120 cents. 1 dollar and 20 cents, $3 - $1.20 = $1.08

Answer:

Billy has 1.8 dollars left.

Step-by-step explanation:

So, .30 x 4 is 1.2. I subtracted 1.2 from 3 and got 1.8. I hope it's the right answer and wish you luck on the rest of your work!

Answer:

-6x - 2y = 10 and -24x - 8y = 40
-4x + 3y = 20 and 12x - 9y = -60
2x + 5y = 18 and 4x + 10y = 36

Step-by-step explanation:

first equation with second row second equation
third equation with second row first equation

second equation with second row third equation

Answer:

y−5=2⋅(x−2)

Step-By-Step solution

Answer:

it would be c or b cause thats the only thing that would make scince

Step-by-step explanation:

Answer:

B is the answer.

[tex] \frac{1}{3} > 2 \frac{1}{2} [/tex]

is the answer...

Answer:

a

Step-by-step explanation:

Answer:

$4.79

Step-by-step explanation:

divide $6.88/2

add $1.35 that's it

Money reduction on a paint set during a sale = $1.35

Cost of two paint sets Jenny bought in a sale = $6.88

Given :-

Cost of every paint set is equivalent .

Then :-

Cost of each paint set during the sale :-

[tex] = \frac{6.88}{2} [/tex]

[tex] = $3.44[/tex]

The cost of each painting set during the sale was $3.44 .

Cost of each paint set before the sale :-

[tex] = 3.44 + 1.35[/tex]

[tex] =$4.79[/tex]

Therefore , the cost of each paint set before the sale was = $4.79 .

Answer:

Reshmi bought more cloth by 4/15...

Step-by-step explanation:

1st equalize the denominator of 2/3 and 2/5

lcm of the denominators 3 and 5 is 15

2/3*5/5=10/15

2/5*3/3=6/15

Rashmi bought 10/15 m cloth

madhu bought 6/15 m cloth .

therefore, Rashmi bought more cloth

by how much more?

10/15-6/15 = 10-6/15=4/15

therefore, reshmi bought more cloth by 4/15

Step-by-step explanation:

let width= 3x and length = 5x

perimeter = 64cm

now perimeter = 2(length+width)

64= 2(3x+5x)

64 = 16x

x = 4

therefore width= 3 X 4 = 12

length = 5 X 4 = 20

Answer:

2a+6

I'm sure of it!!

trust me

Answer:

16: 28 is the answer for the above question

Answer:

hows it feel?

What was the tone of Cross and Martha's letters?

Octavio's cousin, who is a young tech and coding whiz. In the basement of his mother's house, Daniel uses a 3-D printer

Step-by-step explanation:

What was the tone of Cross and Martha's letters?

Octavio's cousin, who is a young tech and coding whiz. In the basement of his mother's house, Daniel uses a 3-D printer

What was the tone of Cross and Martha's letters?

Octavio's cousin, who is a young tech and coding whiz. In the basement of his mother's house, Daniel uses a 3-D printer

Answer:

The zoo was open 362 days and had an average of 272 visitors a day.

Step-by-step explanation:

365-3=362

98,464÷362=272

Answer:

r = 3

Step-by-step explanation:

[tex]\dfrac{r}{2} - 3 = 3(4 - \dfrac{3r}{2} )[/tex]

The first step to solve for "r" is to simplify the distributive property on the RHS. To simplify the distributive property, we need to multiply the term outside the parenthesis with the terms inside the parenthesis.

[tex]\rightarrow \dfrac{r}{2} - 3 = 12 - \dfrac{9r}{2}[/tex]

Now, add 9r/2 and 3 both sides to isolate the constants and variables.

[tex]\rightarrow \dfrac{r}{2} + \dfrac{9r}{2} = 12 + 3[/tex]

Simplify both sides.

[tex]\rightarrow \dfrac{10r}{2}= 12 + 3[/tex]

[tex]\rightarrow 5r = 15[/tex]

Divide 5 both sides.

[tex]\rightarrow \boxed{r = \frac{15}{5} = 3}[/tex]

Answer:

6

Step-by-step explanation:

There are 6 faces on a die so on average, one has to roll a fair die 6 times in order to get number 6 to show.

On average it's 6 as 6 sides a die has

But

i.e

There is 1/6 chances getting any number