So far, 21 students signed up to go on the trip to the Math Museum. That’s only 30% of the number needed for Ms. Speth to agree to the trip. How many kids need to sign up for Ms. Speth to agree to the trip?

Answer:3x +56

Step-by-step explanation:

Answer:

Step-by-step explanation:

Volume of the pyramid:

Find base area:

Substitute value of the volume and find the height of the pyramid:

The boxes with h > 27 can fit the pyramid:

Area of base

Volume=1/3Area×Height

Height

So answers are

boxes of 28cm and 32cn

Answer:

I believe it would be - (n+4) x 2

Step-by-step explanation:

Answer:

2(n + 4)

Step-by-step explanation:

we take her number, n, and add 4

= n + 4

Then we double that. So that can either be 2n + 2(4) = 2n + 8, or 2(n + 4) which tells you to multiply everything in the parentheses by 2.

Please let me know if you have questions.

Answer:

1 group of 7

Step-by-step explanation:

Answer:

Distribute

Subtract   two from both sides of the equation

Simplify

and that's your solution

which should be t=4

Step-by-step explanation:

Answer: [tex]28.3\ hr[/tex]

Step-by-step explanation:

Given

Charge of the site visit [tex]\$45[/tex]

Additional charge per hour is [tex]\$24\ \text{per hour}[/tex]

He eaned [tex]\$810[/tex]

Suppose he worked for x hours

[tex]\therefore 810=45+24x\\\text{On solving}[/tex]

[tex]\Rightarrow 765=24x\\\Rightarrow x=28.3\ hr[/tex]

Answer:

16767

Step-by-step explanation:

Each new term is found by multiplying the previous term by 3.  Thus, 3 is the common ratio.  The formula for this geometric series is therefore

a(n) = 23*3^(n - 1).

The 7th term is a(7) = 23*3^6 = 16767

sorry I answered wrongly

Answer:

Shelly's age  is less than 21

Step-by-step explanation:

S+15 < 36

S < 21

Answer:

ez

Step-by-step explanation:

and dont give brainliest

lel

(y2-y1)/(x2-x1)

19-10=9

6-3=3

9/3=3

slope: 3

y-int: 1

y=3x+1

Answer:

-46.9333333

Step-by-step explanation:

(−26−5×5)−(4)×(−2)+(−3)

−(8−22)÷(−3×5)

Answer:

The statement is false.

Step-by-step explanation:

Here we need to remember some things:

Integer numbers are closed under multiplication.

This means that for two integers a and b, the product a*b is also an integer.

A rational number is a number that can be written as the quotient of two integer numbers.

An irrational number is a number that can't be written as the quotient of two rational numbers.

Now let's see the statement:

"The product of two rational numbers is irrational."

The product of two rational numbers is written as:

[tex]\frac{a}{b} *\frac{c}{d}[/tex]

Where a, c, b, and d are integers.

We can rewrite that product as:

[tex]\frac{a*c}{b*d}[/tex]

Because of the first property, we know that a*c is an integer, and b*d is also an integer, so here we have a quotient of two integer numbers, so this is a rational number.

Then the product of two rational numbers is a rational number.

Then the statement is false.

Step-by-step explanation:

la natalidad hace que la poblacion aumente

Answer:

>

Step-by-step explanation:

Answer:

$625 on groceries

Step-by-step explanation:

The number is 25%, which is 1/4 of $2,500, so we need to find 1/4 of 2,500

2500/4=625

That is how you solve it using division.

Hope this helps!

Answer:22

Step-by-step explanation:

tell me if you want the explanation in the comments

Answer:

22

Step-by-step explanation:

If the total is 33 games ,33 divided in 3 parts,each part is 11

Of the 3 parts  the team won 2 parts

 so 2x11 = 22

Answer:

The area of the composite shape is:

Step-by-step explanation:

To find the area of composite shapes you can pull apart this in known shapes, in this case, a rectangle and a triangle. Taking into account this, we can find the rectangle area firstly:

The base of the rectangle is the measure from down (14 cm) and the height is the measure in the left side (7 cm), with these values we can replace the formula:

Now, to calculate the area of the remaining triangle, we must use the next formula:

Where the base would be equal to the left side of the shape (7 cm) and the height is the difference between the measurement in the top side and the measurement in the bottom side:

We can replace in the formula:

By last, we must add the two values of the areas obtained:

Answer:

I d k

Step-by-step explanation:

5.75x10=57.50

57.5+11.5=69(nice)

69+5.75= 74.75

74.75+5.75=80.5

80.5+5.75= 86.25

86.25+5.75=92

basically this formula should help

i tried to figure out on the way

Answer:

39

Step-by-step explanation:

sqrt(39*13*13)

= sqrt(1521)

= 39

Answer:

The median

Step-by-step explanation:

If you look at the sample section of the 5 different prices, you can see that $2,000 is very far away from the rest of the prices, which range from $14,000 to $17,000. This $2,000 is an outlier, and is likely not accurate in predicting reasonable prices for Hank's bike, so it should not be a factor in his decision or contribute to the mean value.

Answer:

Step-by-step explanation:

The answer is 94.5

Answer:

94.5

Step-by-step explanation:

You would find that by adding up all the numbers in a data set the dividing them by how many number are in the data.

For example:

127 + 62 = 189

And since there are two numbers in the data set, you would divide 189 by 2 and get 94.5 as your answer.

Answer:

eleven if your normal

Step-by-step explanation:

Answer:

eleven

Step-by-step explanation:

Answer:

The probability that two of them

die is 0.257

Step-by-step explanation:

From the question, we have that the mortality rate is 0.1

So the probability that they will survive is 1-0.1 = 0.9

Now, we want to check that two will die

We are going you use the Bernoulli approximation of the Binomial theorem as follows

= nCr * p^n * q^(n-r)

where n = 16

r = 2

P = 0.1

q = 0.9

Substituting these values;

14 C 2 * 0.1^2 * 0.9^12

= 0.257

Answer:

Step-by-step explanation:

Let s represent the length of each of the three sides mentioned.  The length of the fourth side is 7 inches.  Adding the lengths of the four sides together yields 10 inches:  g + g + g + 7 = 10 (inches)

Then 3g + 7 = 10, or 3g = 3, or g = 1.  

This equation is OK, but there's no solution, since 3g or just 3 is less than 7.  With side lengths 1, 1, 1, 7, we cannot draw a quadrilateral.

Answer:

y = 2x + 24

Step-by-step explanation:

Slope-intercept form equation => y = mx + b

m = slope = change in y / change in x

b = y-intercept

✔️using two pairs of values form the table, (-6, 12) and (-5, 14):

Slope (m) = (14 - 12)/(-5 -(-6))

m = 2/1

m = 2

✔️To find b, substitute (x, y) = (-6, 12) and m = 2 into y = mx + b.

12 = 2(-6) + b

12 = -12 + b

12 + 12 = b

24 = b

b = 24

✔️To write the equation, substitute m = 2 and b = 24 into y = mx + b:

y = 2x + 24

Answer:

0

Step-by-step explanation:

Here, we want to get the number of times the graph of the function intersects the x-axis

Mathematically we need to know the number of roots the function has

We can get this by the use of the discriminant

This is:

D = b^2 - 4ac

b is the coefficient of x which is 0 here

a is the coefficient of x^2 which is 1 here

c is the last number which is 2

So;

D = 0^2 -4(1)(2) = 0-8 = -8

the discriminant value is negative

This means there are no real roots

x-y plane is used for real numbers and thus since there are no real roots, the graph of the equation will not intersect any point on the x-axis

Answer:

25(45) +200= 1125+200=1325