Evaluate a−b if a=−2.5 and b=2/5 . Write your answer in simplest form.

Answer:

point form=7,11     x= 7,y =11

Step-by-step explanation:

Answer:

Step-by-step explanation:

y=2x-3

y=x+4

2x-3=x+4

2x-x=4+3

x=7

y=7+4=11

Answer: graphing

Step-by-step explanation:

Answer:

A) [tex]\sqrt{2}[/tex]

B) [tex]4\sqrt{11}[/tex]

Step-by-step explanation:

A) You can add these expression because they contain the same square root:

[tex]6\sqrt{2} - 5\sqrt{2} = (6 - 5)\sqrt{2} =\sqrt{2}[/tex]

B) Same as above:

[tex]\sqrt{11} + 3\sqrt{11} = (1 + 3)\sqrt{11} = 4\sqrt{11}[/tex]

Answer:

[tex]A) \: 6 \sqrt{2} - 5 \sqrt{2} = (6 - 5) \sqrt{2} = \sqrt{2} \\ [/tex]

[tex]B) \sqrt{11} + 3 \sqrt{11} = (1 + 3) \sqrt{11} = 4 \sqrt{11} [/tex]

Answer:

You can sell at least 40 phones each week.

Step-by-step explanation:

Given that:

Weekly base salary = $150

Earning on each phone = $20

Maximum amount that can be earned each week = $950

Let,

m be the number of phones.

20m + 150 ≤ 950

20m ≤ 950 - 150

20m ≤ 800

Dividing both sides by 20

[tex]\frac{20m}{20}\leq \frac{800}{20}[/tex]

m ≤ 40

Hence,

You can sell at least 40 phones each week.

Answer:

0,-2,-4

Step-by-step explanation:

Answer:

Paula is wrong because, in order to be equivalent, the nominator and denominator of a fraction must have to be multiplied by the same number.

Step-by-step explanation:

Paula is wrong because, in order to be equivalent, the nominator and denominator of a fraction must have to be multiplied by the same number.

4/9 is basically obtained when we multiply the denominator of 2/3 by 2 and denominator by 3, which is wrong.

Thus, the correction is as follows:

Given the fraction

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

Multiply the nominator and denominator of the fraction by 2

[tex]\frac{2\times 2}{3\times 2}=\frac{4}{6}[/tex]

Thus, the 4/6 is the correct equivalent expression of 2/3.

for example  

4

​  

=2 is a rational number.

For example,  

9

​  

=3,  

16

​  

=4 is the rational numbers

plz mark brainliest

Answer:

2 11/24

Step-by-step explanation:

Answer:

2 11/24

Step-by-step explanation:

3/4 = 18/24

7/8 = 21/24

5/6 = 20/24

18 + 21 + 20 = 59

59/24

59 - 48 = 11

59/24 = 2 11/24

Answer:

26 or 27 minutes (read the last part of the explanation)

Step-by-step explanation:

So there are 3 minutes Jane already has for $0.75. She has $3.60, so first just subtract the 75 cents from the total amount of money, to get $2.85. Each minute after costs $0.12 so just divide the 2 numbers. You should get 23.75, that's the number of minutes. Add the 3 minutes back on to get the total time and you get 26.75, it says round to the nearest whole number, which would be 27, but since that would cost more money than Jane actually has, I think it would be 26 minutes

sorry if this is a bad explanation TwT

Answer:

You need help with both or can I just help with one ?

Step-by-step explanation:

Answer:

14,275

1013

Step-by-step explanation:

1: To get the population in the year 2001 we would have to multiply 4500 by 1.08. To get the population in 2002 we would have to multiply: 4500(1.08)(1.08) or 4500(1.08)^2  

Therefore you can write the following equation

4500(1.08)ⁿ where n is the number of years

we need is in 2015 and so n=15 so we have

4500(1.08)¹⁵=14274.5 which you should probably round to 14275

The second one is very similar to the first

to get from 1990 to 1991 you would multiply 5000*.93

so our equation would be

5000(.93)ⁿ where n is the number of years

1990-2012 is 22 so we have

5000(.93)²²=1012.96 which rounds to 1013

Answer:

Baseball 482,740 36,011 7.5% 2.2% 2.3% 2.9%

Basketball 540,769 18,816 3.5% 1.0% 1.0% 1.4%

Cross Country 269,295 14,303 5.3% 1.8% 1.4% 2.1%

Football 1,006,013 73,712 7.3% 2.9% 1.9% 2.5%

Golf 143,200 8,485 5.9% 2.0% 1.6% 2.2%

Ice Hockey 35,283 4,323 12.3% 4.8% 0.6% 6.8%

Lacrosse 113,702 14,603 12.8% 3.1% 2.5% 7.3%

Soccer 459,077 25,499 5.6% 1.3% 1.5% 2.7%

Swimming 136,638 9,799 7.2% 2.8% 1.2% 3.2%

Tennis 159,314 7,785 4.9% 1.6% 1.0% 2.3%

Track & Field 605,354 28,914 4.8% 1.9% 1.2% 1.7%

Volleyball 63,563 2,355 3.7% 0.7% 0.7% 2.3%

Water Polo 22,475 1,072 4.8% 2.7% 0.8% 1.3%

Wrestling 247,441 7,300 3.0% 1.0% 0.8% 1.2%

Women

Basketball 399,067 16,509 4.1% 1.3% 1.2% 1.7%

Cross Country 219,345 15,624 7.1% 2.7% 1.7% 2.7%

Field Hockey 60,824 6,119 10.1% 2.9% 1.4% 5.8%

Golf 79,821 5,436 6.8% 2.8% 1.9% 2.1%

Ice Hockey 9,650 2,531 26.2% 8.9% 1.1% 16.2%

Lacrosse 99,750 12,452 12.5% 3.7% 2.6% 6.2%

Soccer 394,105 28,310 7.2% 2.4% 1.9% 2.9%

Softball 362,038 20,419 5.6% 1.8% 1.7% 2.2%

Swimming 173,088 12,980 7.5% 3.3% 1.2% 3.0%

Tennis 189,436 8,596 4.5% 1.5% 1.0% 2.0%

Track & Field 488,267 30,326 6.2% 2.8% 1.5% 1.9%

Volleyball 452,808 17,780 3.9% 1.2% 1.1% 1.6%

Water Polo 21,735 1,217 5.6% 3.3% 1.1% 1.2%

Step-by-step explanation:

The percentage decrease in basketball participation from 2013-2014 to 2014-2015 is  0.35%.

The Latin term "per centum," which signifies "by the hundredth," was the source of the English word "percentage." Segments with a denominator of 100 are considered percentages. In other terms, it is a relationship where the worth of the entire is always considered to be 100.

As per the given information in the question,

Number of basketball participants in 2013-2014 = 974,398

Number of basketball participants in 2014-2015 = 970,983

Then, the percentage decrease in the participants,

% decrease = (974,398 - 970,983)/ 974,398 × 100

% decrease = 0.35%.

To know more about Percentage:

https://brainly.com/question/29306119

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Answer:q=-6

Step-by-step explanation:

If the solution of the system is  {(x,y) : x-3y=4}, then both equation should have proportional coefficients:

[tex]1/2=-3/q=4/8[/tex]

Solve it:

1/2 = -3/q

q=-3*2

q=-6

Check whether q=-6 is correct answer, substituting this value into the first ratio:

[tex]1/2=-3/-6=4/8[/tex]

q=-6

hope this helps,

have a great day,

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Answer:

Step-by-step explanation:

If the solution to the system is the first equation only, then both equations should be same:

Double the first equation, then both of coefficients of y and constant will be equal:

Comparing we get Q = 2

Answer:

Step-by-step explanation:

Given: -8 - ( -1 ) - 5 = -12

B. -8 + 1 - 5

= -8 + 1

= -7 - 5

= -12

E. - ( 8 - 1 + 5 ) it will be -8 + 1 - 5

= -8 + 1

= -7 - 5

= -12

Answer:

its b and e

Step-by-step explanation:

Answer:

The answer is. -1.2

hope this helps

have a great day.

Answer:-1.2

Step-by-step explanation:

9514 1404 393

Answer:

  (c)  11

Step-by-step explanation:

As x goes up by 1, f(x) goes up by 2. The next line of the chart would be ...

  x = 4+1 = 5; f(x) = 9+2 = 11

The appropriate choice is f(5) = 11.

Answer:

the answer is A

Step-by-step explanation:

y increases by 2(rise) and x increases by 3(run), so it would be 2/3

Answer:

p < -9/2 or p < -4.5

Step-by-step explanation:

-3 > 2/3p

-3 * 3> 2p

-9/2 > p

-9/2 > p or -4.5 > p

For literal equations you do not necessarily need a numerical answer. You just need to get the variable you are supposed to solve for on one side of the equation by itself. To do this you will follow the same steps you do when you normally solve for x (or any other variable)

#9-Step by step

Q=25[tex]\pi[/tex]h

divide 25[tex]\pi[/tex] on both sides of the equation

Q/25[tex]\pi[/tex]=h

h=Q/25[tex]\pi[/tex]

Since his can't be simplified any further this is your answer

#11. y=7m+6

First subtract 6 over to the other side

y-6=7m

then divide the 7 over

(y-6)/7=m

m=(y-6)/7

#13 A=(Z+7)3

Divide the three over to the other side of the equation

A/3=Z+7

Now the 7 is free to be subtracted from both sides

(A/3)-7=Z

#17. (2x/5)-9=6

First add 9 to both sides

2x/5=6+9

2x/5=15

Multiply both sides of the equation by 5

2x=5(15)

2x=75

Divide by 2

x=75/2

x=37.5

Answer:

x-5y

Step-by-step explanation:

Answer:

[tex]x-5y[/tex]

Step-by-step explanation:

[tex]6x-8y-5x+3y[/tex]

[tex]6x-5x-8y+3y[/tex]

[tex]x-5y[/tex]

Answer:

I believe it is D.

Step-by-step explanation:

The associative property switches around the order of the digits to make the problem easier. In my opinion it is easiest to multiply the fractions together, and then the whole number.

Answer: The first one and the last one

Step-by-step explanation:

Answer:

The answer is c.

Step-by-step explanation: i took the test

im 100% sure

Answer:

21

Step-by-step explanation:

well first do 12 divided by 4 is 3. than 30-9 is 21. then do 21 +3 is 24 than 24- 3 is 21. therefore your answer is 21.

Answer:

21

Step-by-step explanation:

i just took the test

Answer:

30 I THINK

Step-by-step explanation:

Answer 30 i hopeee

I hope that helps lol

first term: 5x-5y

common difference: -x/2 + y

The common difference is d = -0.5x + y and the first term is 5x-5y

The nth term of the geometric progression is expressed as:

[tex]T_n=a+(n-1)d[/tex]

where;

The fifth term of the sequence is expressed as:

[tex]T_5=a+4d=3x-y[/tex]

[tex]T_{11}=a+10d=3x-y[/tex]

Take the difference of the terms:

[tex]4d-10d=3x-y-5y\\-6d=3x-6y\\d= -0.5x+y[/tex]

Get the first term:

a = 3x - y - 4(-0.5x+y)

a = 3x - y + 2x - 4y

a = 5x - 5y

Hence the common difference is d = -0.5x + y and the first term is 5x-5y

Learn more on arithmetic progression: https://brainly.com/question/14359341

Answer:

x=7

Step-by-step explanation:

Find the ratio between both triangles

jk = 25, mn = 30

multiply 20 by the ratio 1.2 to get 24

then set 24=4x-4

Answer:

X=20

Step-by-step explanation:

Answer:

C. x = 20

Step-by-step explanation:

1 /2 x+6−x=x−4−x

−1 /2 x+6=−4

−1 /2 x+6−6=−4−6

−1 /2 x=−10

( 2/ −1 )*( −1 /2 x)=( 2/ −1 )*(−10)

x=20

Answer: The price per ounce of gold increases by 106.63%.

Step-by-step explanation:

Given: Price in 2005 = $ 513

Price in 2015 - $ 1060

Now , [tex]\text{Percentage increase in price}=\dfrac{\text{Change in price}}{\text{ Initial price}}\times100[/tex]

[tex]\Rightarrow\ \text{Percentage increase in price}=\dfrac{1060-513}{513}\times100\\\\=\dfrac{547}{513}\times100\\\\= 1.0663\times100\%=106.63\%[/tex]

hence, the price per ounce of gold increases by 106.63%.