please help me out !!

Answer:

14%

Step-by-step explanation:

Last year's score = 350

This year's score = 399

What was the percent of increase in Kenia's score

Percentage increase= (new score - old score) / old score × 100

= (399-350) / 350 × 100

= 49 / 350 × 100

= 0.14 × 100

= 14%

The percent of increase in Kenia's score is 14%

Answer:

x = 6

Step-by-step explanation:

First of all you should collect like terms

-x = 18 - 4x

Then you should move the variable to the left

-x + 4x = 18

After that you should collect like terms

3x = 18

Finally divide both sides by 3

x = 6

Hope this helps!

Answer:

6

Step-by-step explanation:

Step-by-step explanation:

A logarithm is a mathematical operation that determines how many times a certain number, called the base, is multiplied by itself to reach another number. ... Logarithms even describe how humans instinctively think about numbers.

Answer:

A logarithm tells what exponent (or power) is needed to make a certain number, so logarithms are the inverse (opposite) of exponentiation. Just as an exponential function has three parts, a logarithm has three parts. The three parts of a logarithm are a base, an argument (also called power) and an answer.

Step-by-step explanation:

Answer:

x=8

Step-by-step explanation:

-x+2=-3x+18

=>-x+3x=18-2

=>2x=16

=>x=16/2

=>x=8

Answer:

The dimensions of the rectangle = 60ft by 107ft

Where 60 ft = Width of the playing field

107ft = Length of the playing field

Step-by-step explanation:

A playing field is Rectangular is shape, hence,

The formula for Perimeter of a rectangle = 2(L + W)

P = 334 ft

L = 47 + W

W = W

Hence we input these values in the formula and we have:

334 = 2(47 + W + W)

334 = 2(47 + 2W)

334 = 94 + 4W

334 - 94 = 4W

240 = 4W

W = 240/4

W = 60

There fore, the width of this playing field = 60 ft

The length of this rectangle is calculated as:

47 + W

47 + 60

= 107 ft

The length of this playing field = 107ft

Therefore the dimensions of the rectangle = 60ft by 107ft

Answer:

Mrs. Davis package is 30 ounces

Step-by-step explanation:

x for ounces

mailbox plus=0.25x+5

united package=0.35x+2

since Mrs.Davis noticed that she is going to pay same price then:

0.25x+5=0.35x+2

5-2=0.35x-0.25x

3=0.10x

x=3/0.10

x=30 ounces

Mrs. Davis package is 30 ounces

check:

0.25x+5=0.25(30)+5= 12.5 dollars

o.35(30)+2=12.5 dollars

Answer: 10x-2

Step-by-step explanation:

I assume this is a rectangular park

Formula for perimeter: 2(l + w)

l= 3x+4

w= 2x-3

--------------------------------------------------------

Use PEMDAS to simplify (basic operation from left to right)

 2(l+w)

=2[(3x+4)+(2x-3)]

=2[3x+4+2x-3]

=2[5x-1]

=10x-2

Answer:

8

x

2

−

15

y

Step-by-step explanation:

Hope that helps

Answer:

11. 68.6 mph

12. 5/6 page (0.83)

Step-by-step explanation:

You simply divide them (remember the word "per" means divide).

[tex]\dfrac{120}{1 \frac34} \approx 68.6[/tex]

[tex]\dfrac{8 \frac13}{10} = \frac56[/tex]

62 is the correct answer of this question

Answer:

Cube of a number is three times of the same number. Cube of any mathematical expression is represented by the superscript 3. For example a 3 of the number is a x a x a. It can also be told as the number multiplied by its square. a 3 = a x a 2 can you please help me

Step-by-step explanation:

Answer:

The real world using opposite would be like calling it perfect or or saying that it is normal now days. Hope this helps!

Answer:

180-38=142 the other angle is 142

Step-by-step explanation:

Answer:

-4x - 1.

Step-by-step explanation:

-1(2x + 3) - 2(x - 1)

= -2x - 3 - 2x + 2

= -4x - 1.

Answer:

-4x -1

Step-by-step explanation:

-2x -3 -2x + 2

Answer:

if you were solving for X the answer would be x < 3

Step-by-step explanation:

The value of 7 in 17.92 is in the ones place.

Answer:

communtive property of multiplication

Answer: commutative property ⚡

Step-by-step explanation

Answer:

m=12

Step-by-step explanation:

21-m=9

-m=9-21

-m=-12

m=12

Answer:

12

Step-by-step explanation:

21-m=9

21-9=12

m=12

Answer:

38 recipes

Step-by-step explanation:

1 week=2 recipes

19 week=19×2 recipes

=38 recipes

Plz,marks me as a brainest ok.

Answer:

30

Step-by-step explanation:

if f(x)=3x^2 - x then,

f(-3)=3*-3^2 -(-3)

=3*9 +3

=27+3

=30

So, The value of f(-3) is 30

Hope Thiswill be helpful for you.

Answer:

418 4/10

Step-by-step explanation:

To answer this we subtract 450 7/10 from 869 1/10.

We must borrow a '1' from 869 1/10:  868 11/10

Now subtract 450 7/10 from 868 11/10:

418 4/10 (CHANGE IN ELEVATION)

This reduces to 418 2/5.

Answer:

No

Step-by-step explanation:

(-1,2) and (0,2) have the same y value. Functions cannot share the same y value

The relationships represents by {(−2, 3), (−1, 2), (0, 2), (−2, 9)} is not function.

Given that,  {(−2, 3), (−1, 2), (0, 2), (−2, 9)}. Is this relation a function is to be specified.

Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.

Here,
In the relation  {(−2, 3), (−1, 2), (0, 2), (−2, 9)}
(−2, 3), (−2, 9) are two pairs that show two images of one pre-image that why it is not a  function.

Thus, the relationships represents by {(−2, 3), (−1, 2), (0, 2), (−2, 9)} is not function.

Learn more about function here:

brainly.com/question/21145944

#SPJ2

Answer:

3√2units or 4.24 units

Step-by-step explanation:

using the formula √∆x^2+∆y^2

√3^2+3^2

√18

= 3√2 or 4.24 units

Answer:

3,200

Step-by-step explanation:

A meter is equivalent to 100 centimetres, so if you did 32 x 100, you'd get your answer :)

Answer:

Pat receives $18.

Step-by-step explanation:

Pats get 18 dollars because he only gets 40 percent of what Julie gets and 40% of 45 is 18.

Answer:

1,2 and 5 are your right answers! Please vote Brainliest!

Step-by-step explanation:

Answer:

.7<3-square-root 5<.8

Step-by-step explanation: