Nellie has a new beaded necklace. 2 out of the 40 beads on the necklace are blue. What percentage of beads on Nellie's necklace are blue?

Answer:

52.7

Step-by-step explanation:

average=add up the number divide by the number of numbers

70+60+50+42.5+41=263.5

263.5/5=52.7

Answer:

10 seventh-grade boys and 10 seventh-grade girls

25 seventh-grade students

Step-by-step explanation:

Sampling

This is a common statistics practice, when we want to study something from a population, we find a sample of this population. This sample has to be representative.

In this question:

Students in the seventh grade prefer to visit the aquarium or the science museum for their end-of-year trip.

So the sample would have to contain only students from the seventh grade. So the correct options are:

10 seventh-grade boys and 10 seventh-grade girls

25 seventh-grade students

Answer:

Step-by-step explanation:

Rate of change = the difference in y/the difference in x.

20 - 6.50/4 - 1 = 13.5/3 = 4.5/1

24.5 - 20/5 - 4 = 4.5/1

33.5 - 24.5/7 - 5 = 9/2 = 4.5/1

The rate of change is 4.5.

Answer:

she types w amount of words per minute

Answer:0=−6

Step-by-step explanation:

Answer:

-8

Step-by-step explanation:

Answer:

ŷ = -0.07637X + 61.36874

Step-by-step explanation:

Score, x :

545

595

640

675

705

750

Interest %, y:

18.982

17.967

12.218

8.612

6.680

5.150

Using the ordinary least square regression calculator :

The equation of best fit obtained is :

ŷ = -0.07637X + 61.36874

Slope = - 0.07637 (depicts a negative relationship between the variables).

Intercept = 61.36874

Score, X = explanatory variable ; Interest rate, Y = response variable

Answer: h -18 =14

Step-by-step explanation:

You need to plug in -18 into the equation. So h(-18)=17+(-18)/6

h(-18)=17-3

h(-18)=14

Step-by-step explanation:

[tex] { ({y}^{2} )}^{4} . \: {( {y}^{3}) }^{2} [/tex]

Since,

[tex] { ({a}^{x} )}^{y} = {a}^{xy} [/tex]

Hence,

[tex] {y}^{2 \times 4} . {y}^{3 \times 2} [/tex]

[tex] = {y}^{8} . {y}^{6} [/tex]

Since,

[tex] {a}^{x} . {a}^{y} = {a}^{x + y} [/tex]

Hence,

[tex] = {y}^{8 + 6} [/tex]

[tex] = {y}^{14} (ans)[/tex]

Answer:

2%

Step-by-step explanation:

Given data

Principal=$2300

Simple interest=$906.20

Time= 19.7years

Required

The rate in percentage

We know that

SI=PRT/100

substitute

906.20=2300*R*19.7/100

906.20=45310R/100

cross multiply

906.20*100= 45310R

90620= 45310R

R= 90620/45310

R=2%

Hence the rate is 2%

Answer:

i think x=4

Step-by-step explanation:

Answer:

yeah it's x = 4

Step-by-step explanation:

The next point she plots on the graph is (2,9)

The function is given as:

f(x) = 25(Three-fifths)^x

Rewrite properly as:

f(x) = 25(3/5)^x

The first point has an x value of 1.

So, the next would be x = 2

This gives

f(2) = 25(3/5)^2

Evaluate the product

f(2) = 9

So, we have:

(2, 9)

Hence, the next point she plots on the graph is (2,9)

Read more about exponential functions at:

https://brainly.com/question/11464095

#SPJ9

Answer:

5 dollars

Step-by-step explanation:

last year he got 5 they were 7 dollars because 7x5 is 35 so do the same thing to do other it also equals 35

Answer:

i cant seee the picture

Step-by-step explanation:

can u retake it

Answer:

12  and square

Step-by-step explanation:

The answer is 19/14x + 97/56

Answer:

not sure

Step-by-step explanation:

i'm confused

Answer:

See attachment for graph

Step-by-step explanation:

Given

[tex]2 cans = 10ft\ by\ 12ft[/tex]

Required

Graph the relationship between both parameters

First, calculate the area;

[tex]Area = 10ft * 12ft[/tex]

[tex]Area = 120ft^2[/tex]

This implies that: (2, 120) i.e. 2 cans for 120ft^2.

So we have:

(0,0) and (2,120)

(0,0) implies that: 0 cans for 0 square feet

Calculate the slope:

[tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]m = \frac{120 - 0}{2-0}[/tex]

[tex]m = \frac{120 }{2}[/tex]

[tex]m = 60[/tex]

The equation is:

[tex]y = m(x - x_1) + y_1[/tex]

So, we have:

[tex]y = 60 * (x - 0) + 0[/tex]

[tex]y = 60 * (x )[/tex]

[tex]y = 60 x[/tex]

See attachment for graph

Answer:

Step-by-step explanation:

Given system:

Divide the first equation by 2 and rearrange:

We got the same equation with the second one. It means we have two of the same lines overlapping.

This gives us infinitely many solutions.

Answer:

30% decrease

Step-by-step explanation:

We have to divide 39 by 130 and then find the percentage of it. 39/130 is equal to 3/10, and 3/10 is equal to 30%. That means that it was a 30% decrease.

Answer:

35%

Step-by-step explanation:

Answer:

X+y=17

X=y+13

y+13+y-13=17-13

2y. =4

y=2.

X=2+13

X=15

the two numbers are 2 and 15

Answer:

2. 70°, 60°, and 50°

Step-by-step explanation:

All interior angles of a triangle MUST EQUAL 180°

1) 60 + 42 + 58 = 160

2) 70 + 60 + 50 = 180

3) 110 + 38 + 42 =  190

4) 41 + 75 + 70 = 186

Answer:

the sum of all even number from 0 to 420 is 175980

Answer:

B

Step-by-step explanation:

Answer:

pythagorean theorem is the way to go

a squared plus b squared =c squared

15 squared plus 8 squared is equal to c squared

so i believe the answer is 17

Step-by-step explanation:

15 squared is 225

225 + 64

64 is 8 squared

that is 289

THE ANSWER IS 17

Step-by-step explanation:

cooool

so

what's the question?