HELPPPPP this is 7TH grade math and I’m confused

HELPPPPP This Is 7TH Grade Math And Im Confused

Answers

Answer 1

Answer:

35 minutes

Step-by-step explanation:

The total time he walked for last week is

10 * 5 = 50 minutes

Subtract 225 by 50 to find the total time he spend for swimming

225-50 = 175 minutes

Divide 175 by 5 to find the time taken for swimming on each day

175/5 = 35 minutes


Related Questions

Good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.

Answers

Answer:

1) x² + x

2) Check Below.

Explanation:

step 1 = 2 sqauresstep 2 = 6 squaresstep 3 = 12 squares

Hence sequence can be created:

2, 6, 12

Find difference:

2, 6, 12

 4   6

    2

Find Equation:

2a = 2a = 1

Then,

3a + b = 4b = 4 -3(1)b = 1

Then,

a + b + c = 2c = 2 - 1 -1c = 0

So Equation:

ax² + bx + c  --- main formulaex² + 1x + 0 x² + x            [equation]B)

With Step Increasing, The step number multiplies the step number and plus the step number. That is the number of squares.

A gym charges membership dues of $25 per month. Part A
Complete the table to show how the total cost in dollars, C, and the
number of months, m, of gym membership are related. What is the cost of the blue section

Answers

you can turn this into an equation: [tex]c=25m[/tex], where c is the cost and m is number of months.

solve for blue.

[tex]c=25m\\\\c=25(14)\\\\c=350[/tex]

The blue section costs $350.

8 is the GCF of what two numbers?

Answers

Answer:

16 and 24

Step-by-step explanation:

The largest factor for both numbers have in common is 8, so GCF(16,24) = 8

ТУ
Which quadratic function is represented by the graph?
6
5
4
O FUX) = - (x + 1)(x – 5)
O f(x) = - (x – 11x + 5)
3
2-
14
O f(x) = -5(x + 1)(x - 5)
2 3 4 5 x
3 -5 -5 -4 -3 -2 -21
-2
O f(x) = -5(x - 1)(x + 5)
+
-3
4
6

Answers

Answer:

the first one

Step-by-step explanation:

because I know the answer

The quadratic function represented in the graph is f(x) = -5 (x - 1) (x + 5).

What are Quadratic Functions?

Quadratic functions are polynomial functions consisting of variables and exponents and the degree of the variable is 2.

The general form of a quadratic function is f(x) = ax² + b x + c.

Given a graph of a quadratic function.

The graph is directed downwards. So the leading coefficient is negative.

The function touches the X axis at two points, x = -5 and x = 1.

So -5 and 1 are the zeroes of the function.

So the function can be factored as,

f(x) = (x + 5)(x - 1)

So the quadratic equation is,

f(x) = -5 (x - 1) (x + 5)

Hence the equation of the given quadratic equation is f(x) = -5 (x - 1) (x + 5).

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The price of a notebook is 20% less than the price of a book. By
what percent is the price of the book higher than the price of the
notebook?

HELP

Answers

Answer:

125%

Step-by-step explanation:

lets just say the book is $100. 20% less would be $80
now to go back to $100, we need to add $20 to $80
20 is 25% of 80, so add the extra 25% to 100% of 80

Mrs Tilley Keeps a variety of poultry. This pie chart shows the numbers of What each kind:

27 Geese, 72 Hens, 45 Turkeys and 36 Ducks.


32. What percentage of the poultry are hens?

33. What percentage of the poultry are geese?

34. What fraction of the poultry are ducks?

35. What fraction of the poultry are turkeys?

Answers

Answer:

   32. 40%

   33. 15%

   34. 1/5

   35. 1/4

Step-by-step explanation:

Question 32

% Hens = No. of hens / Total poultry% Hens = 72 / 27 + 72 + 45 + 36% Hens = 72 / 180 = 2/5% Hens = 40%

Question 33

% Geese = No. of geese / Total% Geese = 27/180 % Geese = 3/20% Geese = 15%

Question 34

% Ducks = No. of ducks / Total% Ducks = 36/180% Ducks = 1/5

Question 35

% Turkeys = No. of turkeys / Total% Turkeys = 45/180% Turkeys = 1/4

Answer:

32.  40%

33.  15%

34.  1/5

35.  1/4

Step-by-step explanation:

Given:

27 Geese72 Hens45 Turkeys36 Ducks

⇒ Total poultry = 27 + 72 + 45 + 36 = 180

[tex]\sf Percentage = \dfrac{Part}{Whole}\times 100[/tex]

[tex]\implies \sf Hens = \dfrac{72}{180}\times 100=40 \%[/tex]

[tex]\implies \sf Geese= \dfrac{27}{180}\times 100=15 \%[/tex]

[tex]\sf Fraction= \dfrac{Part}{Whole}[/tex]

[tex]\implies \sf Ducks=\dfrac{36}{180}=\dfrac{36 \div 36}{180 \div 36}=\dfrac{1}{5}[/tex]

[tex]\implies \sf Turkeys=\dfrac{45}{180}=\dfrac{45 \div 45}{180 \div 45}=\dfrac{1}{4}[/tex]

NEED HELP PLEASE ANSWER ASAP! (41)

Answers

Answer:

   41. (2) x² - 3x - 4 =0

Step-by-step explanation:

Question 41

Standard form of polynomial

x² - (sum of roots) + product of roots = 0(2) x² - 3x - 4 =0

Answer:

(2)  [tex]x^2-3x-4=0[/tex]

Step-by-step explanation:

Standard form of a quadratic equation:  [tex]ax^2+bx+c=0[/tex]

When factoring a quadratic (finding the roots) we find two numbers that multiply to [tex]ac[/tex] and sum to [tex]b[/tex], then rewrite [tex]b[/tex] as the sum of these two numbers.

So if the roots sum to 3 and multiply to -4, then the two numbers would be 4 and -1.

[tex]\implies b=1+-4=-3[/tex]

[tex]\implies ac=1 \cdot -4[/tex]

As there the leading coefficient is 1, [tex]c=-4[/tex].  

Therefore, the equation would be:  [tex]x^2-3x-4=0[/tex]

Proof

Factor  [tex]x^2-3x-4=0[/tex]

Find two numbers that multiply to [tex]ac[/tex] and sum to [tex]b[/tex].

The two numbers that multiply to -4 and sum to -3 are:  -4 and 1.

Rewrite [tex]b[/tex] as the sum of these two numbers:

[tex]\implies x^2-4x+x-4=0[/tex]

Factorize the first two terms and the last two terms separately:

[tex]\implies x(x-4)+1(x-4)=0[/tex]

Factor out the common term  [tex](x-4)[/tex]:

[tex]\implies (x+1)(x-4)=0[/tex]

Therefore, the roots are:  

[tex](x+1)=0 \implies x=-1[/tex]

[tex](x-4)=0 \implies x=4[/tex]

So the sum of the roots is:  -1 + 4 = 3

And the product of the roots is:  -1 × 4 = -4

Thereby proving that  [tex]x^2-3x-4=0[/tex]  has roots whose sum is 3 and whose product is -4.

What is 15 1/3 in radical form?
2/15
15

Answers

Answer:

∛15.

Step-by-step explanation:

15^1/3

= ∛15.

Radius & Diameter
Easy: 51
A. Choose the correct choice.
1) A circle has a circumference of 1211 yd. What is the diameter of the circle?
a) 12 yd
b) 6 yd
c) 18 yd
2) A wire of length 281 in is bent to form a circle. What is the radius of the circle?
a) 28 in
b) 19 in
C) 14 in
3) A circular park has a circumference of 361 yd. Find its diameter.
a) 18 ya
b) 36 yd
c) 12 ya
4) The tip of the minute-hand travels 2211 in in one hour. Find the length of the minute-hand.
a) 11 in
b) 10 in
c) 22 in
5) The circumference of a bicycle wheel is 6n in. Find the diameter of the wheel.
a) 12 in
b) 6 in
c) 3 in
B. Find the radius and diameter in each question.
S.No
Circumference
Radius
Diameter
6.
10л ft
7.
24n in
8.
341 ya
9.
407 in
10.
167 ft

Answers

Answer:

a,c,b,a,b

Step-by-step explanation:

6.

7.

8.

9.

10.

Circumference

10π ft

24π in

34π yd

40π in

16π ft

Radius

5 ft

12 in

17 yd

20 in

8 ft

Diameter

10 ft

24 in

34 yd

40 in

16 ft

(U^3 v^4)^4 * (2u^4 v^2)^2
Simplify
Show all work
I give brainliest ,.

Answers

1) apply exponent to the terms inside the bracket - multiply exponents

[tex](u^3v^4)^4\\\\(u^1^2v^1^6)[/tex]

[tex](2u^4v^2)^2\\\\(4u^8v^4)[/tex]

2) multiply the two terms together - add exponents

[tex](u^1^2v^1^6)(4u^8v^4)\\\\4(u^1^2^+^8)(v^1^6^+^4)\\\\4u^2^0v^2^0[/tex]

If k (x) = x^2 and p (x) = k (x) + n, what is the value of n?

Answers

The equation k(x) = x^2 is quadratic equation, and the value of n in p (x) = k (x) + n is -6

How to determine the value of n?

The equations are given as:

k(x) = x^2

p (x) = k (x) + n


From the graph, we can see that the graph of k(x) is shifted down by 6 units.

This means that the equation of p(x) is

p (x) = k (x) - 6

By comparison;

n = -6

Hence, the value of n in p (x) = k (x) + n is -6

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What is the value of x?

Answers

Answer:

130° is the correct value of x.

Step-by-step explanation:

In the question, there's an quadrilateral whose sum of all exterior angle is 360°.

140° + 34° + 56° + x = 360°

➝ 230° + x = 360°

➝ x = 360° - 230°

x = 130°

Thus, The value of x is 130°.

Which of the following is a valid probability distribution?

Answers

Answer:

first one is the valid probability distribution

What is the value of y in the solution to this system of equations?
3x + 2y = -12
2x + y = 4
A.
B.
C.
D.
-36
-12
4
20

Answers

Answer:

x= 20,y= −36

Step-by-step explanation:

3x+2y=−12

2x+y=4

Subtract 2x

from both sides of the equation.

y=4−2x

3x+2y=−12

Replace all occurrences of y

with 4−2x

in each equation.

Tap for more steps...

−x+8=−12

y=4−2x

Solve for x

in −x+8=−12

.

Tap for more steps...

x=20

y=4−2x

Replace all occurrences of x

with 20

in each equation.

Tap for more steps...

y=−36

x=20

The solution to the system is the complete set of ordered pairs that are valid solutions.

(20,−36)

The result can be shown in multiple forms.

Point Form:

(20,−36)

Equation Form:

x=20,y=−36

3x-2y=-12--(1)2x+y=4--(2)

Multiply 2 with (1) and 3 with (2)

6x+4y=-24--(1)

6x+3y=12--(4)

Subtract

y=-24-12y=-36

HELPPPPPPPPPPPPPPPPpppp

Answers

Answer: 32π
Decimal: 100.53 (Not rounded)

Formula for a Cone: ⅓ πr^2h.

Kara wants to buy a game that is on sale. the original price of the game is p, but it is on sale for 30% off the original price. she uses the expression p(i - 0.3) to model the price. which expressions are equivalent to kara's expression? select all correct answers and the answers are

p - 0.3

1 - 0.3p

0.7p

p - 0.3p

1.3p

Answers

The expressions equivalent to kara's expression are 0.7p and p-0.3p

How to find discount of original price?

Original price = pDiscount = 30%

Discount price expression = p(1 - 0.3)

= p - 0.3p

= 0.7p

Check for equivalent expression

p - 0.3

Not equivalent

1 - 0.3p

Not equivalent

0.7p

Equivalent

p - 0.3p

Equivalent

1.3p

Not equivalent

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Which equation shows the area, in square centimeters, of the shaded figure?

Answers

Answer:

[tex]3\times8=24[/tex]

Step-by-step explanation:

Notice that the shaded figure has a width of 3 cm and a length of 8 cm. The area of the rectangle is equal to the product of the width and length, so [tex]8\:\text{cm}\times3\:\text{cm}=24\:\text{cm}^2[/tex] would be the area of the shaded figure.

A board 18 inches long is cut into two pieces in the ratio 1:2. Find the length of each piece.

Answers

9 inches is the answer

write the equation of the line passing through the point (2,- 1) with a slope of 3

Answers

Answer:

Y= 3X-7

Step-by-step explanation:

the equation of the line has the formular

Y-Y1= M (X-X1)

here, M= slope= 3

X1=2 Y1= -1

Y--1= 3(X-2)

Y+1= 3X-6

Y= 3X-6-1

Y= 3X-7

Answer:

y=3x-7

Step-by-step explanation:

1. Use The Slope Formula

 y=mx+b

m=slope

b=y-intercept

2. Fill in the given values

y=3x+b

3. Use the given points to solve for b

-1=3*2+b

-1=6+b

-7=b

4. Final equation

y=3x-7

PLEASE HELP FAST I'LL MARK YOU AS BRAINLIST
The volume of a cube-shaped container is 8000cm³. What is the AREA of the base?

Answers

Answer: 400

Step-by-step explanation: cube root 8000 then that times itself

After sitting out of a refrigerator for a
while, a turkey at room temperature (
68°F) is placed into an oven. The oven
temperature is 305°F. Newton's Law of
Heating explains that the temperature of
the turkey will increase proportionally to
the difference between the temperature of
the turkey and the temperature of the
oven, as given by the formula below:
T = Ta + (To − Ta)e-kt
Ta
=
the temperature surrounding
the object
To
=
the initial temperature of the
object
t
=
the time in hours
T
=
the temperature of the object
after t hours
k = decay constant
The turkey reaches the temperature of
108°F after 3 hours. Using this
information, find the value of k, to the
nearest thousandth. Use the resulting
equation to determine the Fahrenheit
temperature of the turkey, to the nearest
degree, after 4.5 hours.

Answers

Answer:

The value of k to the nearest thousandth is -0.133

The of the turkey to the nearest degree after 4.5 hours is 186F

Step-by-step explanation:

The square to solve the quadratic equation x^2-15x+2=0

Answers

The roots of the equation [tex]x^{2}[/tex]-15x +2 =0 are 14.865 and 0.135

What is completing the square method?

Completing the square method is one of the methods to find the roots of the given quadratic equation.

Given equation is:

[tex]x^{2}[/tex]-15x +2 =0

Using Completing the Square method we have

[tex]x^{2}[/tex]-15x +2 + [tex](\frac{15}{2})^{2}[/tex] - [tex](\frac{15}{2})^{2}[/tex] =0

Now,

[tex]x^{2}[/tex]-15x + [tex](\frac{15}{2})^{2}[/tex] - [tex](\frac{15}{2})^{2}[/tex] +2=0

or, [tex][x-(\frac{15}{2})]^{2}[/tex] - 225/4 +2 =0

 

or,  [tex][x-(\frac{15}{2})]^{2}[/tex] -217*4 =0

or,  [tex][x-(\frac{15}{2})]^{2}[/tex] = 217/4

or,  [tex]x[/tex] = [tex]\pm \frac{14.73}{2} + \frac{15}{2}[/tex]

or, [tex]x_1[/tex]= 14.865, [tex]x_2[/tex]= 0.135

Thus, the roots of the quadratic equation are: 14.865 and 0.135

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A Cylinder has a base diameter of 4cm and a height of 2cm. What is it’s volume in cubic cm, to the nearest tenths place

Answers

Answer: The answer is v=25.1 cm³

Step-by-step explanation:

b=4      

h= 2

r= 4/2     r =2 radius is half of the diameter

V=πr²h

v= π(2)²2

v= 25.132741228718

v=25.1 cm³

Find two integers whose sum is 3 and product is -28 ?

Answers

Answer:

-4 and 7

Step-by-step explanation:

-4 + 7 = 3

-4•7 = -28

Which of the following is an equation of a line perpendicular to the equation
y =3x + 1?
O A. y = 3x + 5
O B. y=x+5
X
3
O C. y = -3x+5
OD. y - 3x+5
O 5
3

Answers

B is the answer ma brutha

A watering can hold 12 1/2 litres.it’s filled 11 times from a tank containing 400 litres.how much water is left in the tank

Answers

Answer:

262 1/2 liters

Step-by-step explanation:

Remaining water in tank :

Volume (tank) - 11 x Volume (watering can)400 - 11 x 12 1/2400 - 137 1/2262 1/2 liters

Answer:

262.5 litres

Step-by-step explanation:

Water taken from the tank

⇒ 11 × 12.5 litres = 137.5 litres

Water left in tank

⇒ 400 - 137.5 = 262.5 litres

If you blend 2 scoops of chocolate ice cream with 1 cup of milk, you get a milkshake with a stronger chocolate flavor than if you blended 3 scoops of chocolate ice cream with 2 cups of milk. Explain or show why.

Answers

Answer:

This is less chocolate ice cream per cup of milk than in the first mixture (2 scoops of chocolate ice cream per cup of milk), so the first mixture has stronger chocolate flavor. 2 scoops of chocolate ice cream with 1 cup of milk will taste the same as 4 scoops of chocolate ice cream with 2 cups of milk.

Step-by-step explanation:

Answer:

If you did 3 scoops of ice-cream and 2 cups of milk you would have 2times the amount of milk and only 1 1/2 times the amount of ice-cream then if you did 1 cup of milk and 2 scoops of ice-cream.

Step-by-step explanation:

To solve this question, we will have to use the aspect of mathematics that is referred to as rates or proportions.

In the first mix, what we have is that we are going to mix 2 scoops of chocolate ice cream with 1 cup of milk. What is noticeable here is that we have 2 scoops of chocolate per 1 cup of milk or there is a 2 to 1 ratio of chocolate ice cream to cup of milk.

Now in the second mix, we are mixing 3 scoops of chocolate with 2 scoops of milk. What we have here is a ratio of 3 to 2. This means that we are having a ratio of 1.5 to 1 of the number of scoops of chocolate ice cream to number of cups of milk.

Looking at this, we can deduce that a 2 to 1 ratio is a greater value compared to a 1.5 to 1 ratio. This is the reason why we are having a stronger chocolate flavor in the first mix than the chocolate flavor in the second mix

(3 squared)to the power of 6

Answers

Answer:

531,441

Step-by-step explanation:

3^2=9

9^6=531,441

Answer:

[tex] \sqrt{ {2}^{6 } } = 27 if thats what you meant here is another answer{ {2}^{6} = 64[/tex]

(90 POINTS) How can you find the length of RT using similarity? Explain your reasoning.

Answers

Answer:

RT = 26

Step-by-step explanation:

Based on the figure we can say :

ΔABC ~ ΔTSR (by SAS similarity)

Scale factor :

AB/SR = 12/24 = 1/2

Hence, as the proportions are the same :

CA/RT = 1/213/RT = 1/2RT = 13 x 2RT = 26

The triangle ABC and RST will be similar triangles. Then the length of RT will be 26 units.

What is the triangle?

A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.

If the two triangles are similar, the ratio of the corresponding sides will be constant.

The triangle ABC and RST will be similar triangles.

RT / 13 = 24 / 12

      RT = 26

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-11+13+ 10x + 2x

I will give you brainliest

Answers

Answer:

12x + 2

Step-by-step explanation:

-11 + 13 +  10x + 2x =

2 + 10x + 2x =

12x + 2

Answer:

2(6x+1)

Step-by-step explanation:

1. Add the number

-11 + 13 + 10x + 2x

2 + 10x +2x

2.Combine like terms

2 + 10x + 2x

2 + 12x

3.Arrange terms

2 + 12x

12x + 2

4.Common factor

-11 + 13 + 10x + 2x

2(6x+1)

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