Joshua has 4 more nickels than dimes. If he has $0.80, which system of equations
can he use to find the number of nickels n and the number of dimes d he has?

Answer:

17

Step-by-step explanation:

3f=3 multiply by f

so 50 divide by 3 = f

50 divide by 3= 16.6

round 16.6 to nearest whole number = 17

hope this helped! xx

Answer:

30

Step-by-step explanation:

Add all the measures 50+35+85+65+60= 210

subtract 180 from 210 and you get

210-180 = 30

we use 180 because  Example: Angles on one side of a straight line always add to 180 degrees. 30° + 150° = 180° When a line is split into 2 and we know one angle, we can always find the other one.

Answer:

100

Step-by-step explanation:

use distance formula

Answer:

0.262

Step-by-step explanation:

Edge 2021

The probability of getting 2 or more "Winner" caps on 4 bottles of water

is 0.2616.

In an experiment with two possible outcomes, the likelihood of exactly x successes on n repeated trials is known as the binomial probability.

The binomial probability is, [tex]^nC_xP^xq^{n - x}[/tex].

Let, p be the probability of winning,

Given,  1 out of every 4 bottles has the word "Winner".

Therefore, p = 1/4 and we know q = 1 - p = 3/4.

So, The probability of getting 2 or more "Winner" caps on 4 bottles of water

is P(X ≥ 2) which is, P(X = 2) + P(X = 3) + P(X = 4).

P(X ≥ 2) = [tex]^4C_2p^2q^2 + ^4C_3p^3q^1 + ^4C_4p^4q^0[/tex].

P(X ≥ 2) = 6(1/4)²×(3/4)² + 4(1/4)³×(3/4) + 1(1/4)⁴×1.

P(X ≥ 2) = 0.2109 + 0.0468 + 0.0039.

P(X ≥ 2) = 0.2616 or 26.16%.

learn more about binomial distribution here :

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Answer:

Step-by-step explanation:

12,800 written as 1.28 x 104 in scientific notation

Answer:

9y-3y=6y is equivalent to 9y – 3y.

Answer:

the answer is (x,y) (1/4 -13/4)

Answer:

I'm about 99.9% sure you need to know what theta is (x) so you can solve this

Step-by-step explanation:

Either that or the answer would be 0.7

Answer:

1 5/32

Step-by-step explanation:

First, find common denominators. What you do to the denominator, you must do to the numerator.

First, multiply 4 to both the numerator and denominator of the second fraction:

(7/8)(4/4) = (7 * 4)/(8 * 4) = 28/32

Next, add across:

9/32 + 28/32 = 37/32

Simplify. Turn the improper fraction into a mixed fraction:

37/32 = (32 + 5)/32 = 1 5/32

1 5/32 is your answer.

~

Answer:

37 /32

Step-by-step explanation:

Find the least common denominator or LCM of the two denominators:

LCM of 8 and 32 is 32

For the 1st fraction, since 8 × 4 = 32,

7 /8  =  7 × 4

       8 × 4 =  28 /32

Likewise, for the 2nd fraction, since 32 × 1 = 32,

9 /32  =  9 × 1

          32 × 1 =  9 /32

Add the two fractions:

28 /32 +  9/32 =  28 + 9 /32  =  37 /32

So, 7/8 + 9/32 = 37/32

In mixed form: 1 5 /32

Please mark as brainliest!

Step-by-step explanation:

Principal=1500

Time=18months = 18×12=216

Interest=6%

now

SI=P×T×R÷100

SI=1500×216×6÷100

SI=1944000÷100

SI=19440 is the answer

Answer:

20

Step-by-step explanation:

8% × 250 =

(8 ÷ 100) × 250 =

(8 × 250) ÷ 100 =

2,000 ÷ 100 =

20;

Answer:

3.8%×250=

9.5

so the answer is 9.5

Answer: id k i think b sorry if it wrong

Step-by-step explanation:

Answer:

ok

Step-by-step explanation:

Answer:

The line on the graph below is my answer.

The graph of function y = -3x – 1 has been drawn below.

A graph is a diagram that shows the fluctuation of one variable in relation to one or more other variables.

In order to plot the graph, we need to find out y's values corresponding to x's value

After that, we need to substitute the values of x's and y's into the coordinate geometry.

Given the line equation  y = -3x – 1

At x = 0 ⇒

y = -3(0) - 1

y = -1

So,

A(0,-1) is the first point on the line.

At y = 0 ⇒

0 = -3x – 1

x = -1/3

So,

B(-1/3,0) is the second point on the line.

Hence "The graph of function y = -3x – 1 has been drawn below".

For more information about the graph of a function,

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Answer:

x+9

Step-by-step explanation:

4x³+12x²-72x

=4x(x²+3x-18)

=4x[x²+6x-3x-18]

=4x[x(x+6)-3(x+6)]

=4x(x+6)(x-3)

Answer:

D)

Step-by-step explanation:

Right on Edge 2021

Answer:

D) The cost of exporting e-waste is covered by the country accepting the waste.

Step-by-step explanation:

edge :D

Answer:

We conclude that:

[tex]\sqrt{\left(-81\right)x^2}=9ix[/tex]

Step-by-step explanation:

Given the radical expression

[tex]\sqrt{\left(-81\right)x^2}[/tex]

simplifying the expression

[tex]\sqrt{\left(-81\right)x^2}[/tex]

Remove parentheses:  (-a) = -a

[tex]\sqrt{\left(-81\right)x^2}=\sqrt{-81x^2}[/tex]

Apply radical rule:   [tex]\sqrt{-a}=\sqrt{-1}\sqrt{a},\:\quad \mathrm{\:assuming\:}a\ge 0[/tex]

                 [tex]=\sqrt{-1}\sqrt{81x^2}[/tex]

Apply imaginary number rule:  [tex]\sqrt{-1}=i[/tex]

                 [tex]=i\sqrt{81x^2}[/tex]

Apply radical rule:   [tex]\sqrt[n]{ab}=\sqrt[n]{a}\sqrt[n]{b},\:\quad \mathrm{\:assuming\:}a\ge 0,\:b\ge 0[/tex]

                  [tex]=\sqrt{81}i\sqrt{x^2}[/tex]

                  [tex]=9i\sqrt{x^2}[/tex]

Apply radical rule:  [tex]\sqrt[n]{a^n}=a,\:\quad \mathrm{\:assuming\:}a\ge 0[/tex]

                  [tex]=9ix[/tex]

Therefore, we conclude that:

[tex]\sqrt{\left(-81\right)x^2}=9ix[/tex]

Answer:

The value of 2n - 2 is 4.

Step-by-step explanation:

Given the equation

[tex]n + 7 = 10[/tex]

Subtract  7 from both sides of the equation

[tex]n+7-7=10-7[/tex]

Simplify

[tex]n=3[/tex]

Now substituting n = 3 in the equation

2n - 2 = 2(3) - 2

          = 6 - 2

          = 4

Therefore, the value of 2n - 2 is 4.

Answer:

2x+11=25

7

Step-by-step explanation:

I think of a number (x) and double it (multiply it by 2) and then add 11

put this all together and get

2x+11=25

Solve for x

2x=14

x=7

Answer:

2x+11=25

Step-by-step explanation:

x=7

Answer: (-2,1)

Step-by-step explanation:

Read it lije (x,y)

Answer:

linear.

Step-by-step explanation:

It has a slope and a y value

Answer:

The answer is 1

Answer:

(x+-6)(x+4)

(x)(x)+(x)(4)+(-6)(x)+(-6)(4)

x^2+4x-6x-24

Answer is x^2-2x-24

Step-by-step explanation:

Answer:

1.n=15

2.n=5

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

If he sold 12 glasses of lemonade yesterday then 25% more is 1/4 more. 1/4 of 12 is 3. Add 3 to 12 and you get 15.

Answer:

-73

Step-by-step explanation:

6 x (-13) = -78

x - 5 = -78

x = -78 + 5

x = -73