can someone explain to me how to do both of this question? tyvm

Can Someone Explain To Me How To Do Both Of This Question? Tyvm

Answers

Answer 1

Answer: Hope this helps :)

Step-by-step explanation:

a) =Let the boys be x

girls = x-10

so

x + x - 10 = 50

or, 2x = 60

so, x = 30

boys = 30

girls = 30-10 = 20

Therefore, 30 boys participated in the activity.

b) = Let the zilong's stamp be x and miya's stamp be y

so

first

x+y = 40

y = 40-x

now

x - 10 = 2y

x-10 = 2(40-x)

x-10 = 80-2x

or, 3x = 90

so, x = 30

then y = 40-x

        y = 40-30 = 10

Therefore, Zilong had 30 stamps and Miya had 10 stamps before.


Related Questions

if (2,3) bisects the line segment joining the points (a,6) and (8,b),then what are the values of a and b​

Answers

Answer:

a

Step-by-step explanation:

Jeffery took a drive to town at an average rate of 50mph. When he returns, he drove back at the rate of 30 mph. If he spent a total of 8 hours traveling, what is the distance traveled by Jeffery? Please answer.

Answers

Answer:

150 + 150 = 300

Step-by-step explanation:

50x = 30y  

x + y = 8

~~~~~~~~~~~~~~~

x = 8 - y

50(8-y) = 30y

400 - 50y = 30y

400 = 80y

y = 5

x= 3

Kira has breakfast in a restaurant. She leaves $1.80 for a 20% tip. What is the price of Kira's breakfast, before the tip?

Answers

Answer:

percent* base = amount

.2 * x = 1.80

x = 1.80/.2

x= $9

Step-by-step explanation:

A school store buys pencils in bulk and sells them to students for a small profit. The school pays $2.00 for 100 pencils and sells them for 10 cents each. How many pencils would they have to sell to make a $100 profit?

Answers

Answer:

1,000 pencils  

Step-by-step explanation:  

First, there are 10,000 cents in $100.  

So divide 10,000 by 10.  

1,000.

I hope this helps!  

pls ❤ and mark brainliest pls

Here is an easy question for points: Bob went to the store and bought four products. He spent $19.87 on a coffee maker, $45.21 on a food processor, and $9.99 on trousers. He also purchased a chair. His entire cost was $100. what was the cost of the chair?

Answers

Answer:

24.93

First add all then subtract by 100

10.
What is the volume of the rectangular prism?
3.in.
4 in.
52 in.

Answers

Answer

(3.5 times 5.25) times 4

Step-by-step explanation:

then convert the decimal to a fraction.

Find the measure of the number two angles in each figure. Justify each answer​

Answers

11:
1. 123°
2. 57°
3. 95
4. 85°

12.
1. 130°
2. 54°
3. 130°
4. 126°

4. Find the equation of the lines described.
A. Find the equation of the line parallel to y = 3x -5
and passing through
(-4, 7).

Answers

Answer:

y = 3x + 19

Step-by-step explanation:

Apply point-slope form. Our point (y1, y2) is (-4, 7) and our slope (m) is 3. The slope of y = 3x - 5 is 3 because it is "m" in y = mx + b. Parallel lines have the same slope.

y - y1 = m(x-x1)

y - 7 = 3(x-(-4))

y - 7 = 3(x+4)

y - 7 = 3x + 12

y = 3x + 19

Calculate the volume of a warehouse that has inside dimensions of 22.4 meters by 11.3 meters by 5.2 meters.

Answers

I think it should be 1316.22 cubic meters

The volume of the warehouse with the three dimensions is V = 1,316.224 cubic meters.

Given data:

To calculate the volume of the warehouse, you need to multiply its length, width, and height:

Volume = Length *  Width * Height

The volume of the rectangle is given by the product of the length of the rectangle and the width of the rectangle and the height of the rectangle

Given the dimensions:

Length = 22.4 meters

Width = 11.3 meters

Height = 5.2 meters

Substitute these values into the formula:

Volume = 22.4 m × 11.3 m × 5.2 m

Calculate the result:

Volume = 1,316.224 m³

So, the volume of the warehouse is approximately 1,316.224 cubic meters.

To learn more about volume of rectangle, refer:

https://brainly.com/question/25422723

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Subtract using a number line.

−2.3−(−0.4)

Plot the minuend and the difference on the number line.

Answers

The difference on the number line of the expression −2.3−(−0.4) is - 1.9

Number lines are lines that are used to mark integers based on the required interval between the integers

Given the expression

−2.3−(−0.4)

First, let us find the difference

= −2.3−(−0.4)

= −2.3 + 0.4

= -1.9

Hence the difference of the number is -1.9

Representing the result on a number line is attached below

Learn more here: https://brainly.com/question/18731042

Answer:

-1.9 on the number line!

Step-by-step explanation:

k12

Evaluate. Express your answer in scientific notation.
5.09 x 104 – 4.95 x 104

Answers

Answer:

-163.64..................

Junaid has a rectangular box open from the top as in the figure. He paints base and 4 lateral faces as shown. He paints only up to th of the height of the box to save paint. Find the total surface area he painted.

Answers

The surface area is the total area occupied by the object. The surface area of the painted figure is [tex]440m^2.[/tex]

From the attached box, we have the following:

[tex]L = 20m[/tex] -- length

[tex]W = 10m[/tex] --- width

[tex]H = \frac 45 \times 5m = 4m[/tex] --- the painted height

Since the box has an open-top, the surface area is:

[tex]Area = LW + 2(WH + LH)[/tex]

So, we have:

[tex]Area = 20 \times 10 + 2 \times (10 \times 4 + 20 \times 4)[/tex]

[tex]Area = 200 + 2 \times (120)[/tex]

[tex]Area = 200 + 240[/tex]

[tex]Area = 440[/tex]

Hence, the painted area is [tex]440m^2.[/tex]

Read more about surface area at:

https://brainly.com/question/2835293

Algebra hcf
2x + y and 18x +9y ​

Answers

Step-by-step explanation:

2x+y and 18x+9y

=2x+18x=9y2

=2x"=9y"

8. Nathan has 3 jars, each containing either 5 or 10 marbles.
Which of the following could NOT be the total number of
marbles in all the jars? 30, 20, 35, 25

Answers

35 can’t be the total of marbles

Answer:

35

Step-by-step explanation:

Because,

when we take the maximum values of marbles in a jar ,

that is each jar contains 10 marbles

then the total number of marbles in 3 jars is 30

so , the value 35 is not possible.

Thank you

First to answer correctly gets brainliest
Clicking on the images makes it full

Answers

Answer:

a)

There are 6 planes - 5 faces of the pyramid and one base, which overlaps with the plane X.

b)

Collinear points are the points on the same line:

J, K, D are collinear

c)

The intersection of planes X and HGD is the line section HG.

a:-

This is a pentagonal pyramid

It has 5 planes on sides and one is on base.Total 6planes.

B:-

J-F-L and J-K-D

C:-

HG is the intersection line

IF(x)=3x+7, Find the image of 5

Answers

Answer:

f(5) = 22

Step-by-step explanation:

Substitute x = 5 into f(x) for image , that is

f(5) = 3(5) + 7 = 15 + 7 = 22

The answer is 22.
You substitute 5 where there is an x.
(3 X 5) + 7
15 + 7 = 22
f(5) = 22

Gordon makes 4/5 of a recipe with 2/3 bag of cheese. At this rate, what fraction of the bag of cheese will Gordon use to make the entire recipe?

Answers

Answer:

Gordon will use 5/6 of the bag of cheese to make the entire recipe.

Step-by-step explanation:

We are given that Gordon makes 4/5 of a recipe with 2/3 bag of cheese.

And we want to determine what fraction of the bag of cheese Gordon will use to make the entire recipe.

We can write the following ratio:

[tex]\displaystyle \frac{\dfrac{2}{3}\text{ bag of cheese}}{\dfrac{4}{5}\text{ recipe}}[/tex]

Find the unit rate. Multiply both layers by 5/4:

[tex]\displaystyle \frac{\dfrac{2}{3}\text{ bag of cheese}}{\dfrac{4}{5}\text{ recipe}}\times \frac{\dfrac{5}{4}}{\dfrac{5}{4}}[/tex]

Multiply:

[tex]\displaystyle \frac{\dfrac{5}{6}\text{ bag of cheese}}{1 \text{ recipe}}[/tex]

In conclusion, Gordon will use 5/6 of the bag of cheese to make the entire recipe.

slove for w -22=4(w=2)-7w

Answers

ANSWER: w=10

because math

Chose the correct property


[tex]a(9 \times b) = (a \times 9)b[/tex]


A) Commutative Property Of Multiplication

B) Associative Property Of Multiplication

C) Neither​

Answers

Answer:

Associative property of multiplication

will mark brainliest if correct

Answers

Hi :)

6

6 is a whole number

6 is an integer

and 6 is a natural number

Answer:

Natural number is 6 here

Whole number is 6 too and so is integer. 4.9 and (-1/2) are a rational number while pi is an irrational number

which quadrant will the line y= -1/4 x-15 never pass

Answers

Step-by-step explanation:

For x-intercept:

put y=0

0=-1/4 x -15

1/4x=-15

x=-15×4

x=-60

points(-69,0)

For y-intercept:

put x=0

y=-1/4(0)-15

y=-15

points(0,-15)

This line will never pass through first quadrant.

Note:if you need to ask any question please let me know.

The line will never pass through first quadrant.

What is intercept?

The x-intercept is the point where a line crosses the x-axis, and the y-intercept is the point where a line crosses the y-axis.

Given line:

y= -1/4 x-15

Now, the x-intercept:

0=-1/4 x -15

1/4x=-15

x=-15×4

x=-60

and the y-intercept will be

y=-1/4(0)-15

y=-15

Hence, the line will never pass through first quadrant.

Learn more about intercept here:

https://brainly.com/question/14180189

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A man sold a calculator at a loss of 12℅. If selling price was Rs.7040, what was the cost price?​

Answers

Answer:

Rs.6195.20

Step-by-step explanation:

So first you need to find 12 % of Rs.7040. Thus:

[tex]\frac{12}{100}[/tex] × 7040 = 844.80

Then you subtract 844.80 from 7040 from which you get  Rs.6195.20

Rs.6195.20 was the cost price.

HOPE THIS HELPED

Ok I still don’t get this pls help!

Answers

Answer:

p and q value is 70 deg and r,s,t and u is 110 deg

Step-by-step explanation:

I. If half circle = 180°

 when p = q = 70°

 so r = s = t = u = 180 - 70 = 110°

Step-by-step explanation:

[tex]thank \: you[/tex]

If f(x) = ax + b represents a linear function, describe the a and b values that produce a constant function?

Answers

In f(x)=ax+b, 'a' is the slope and b is the initial value or y intercept

Given :

Given function is f(x)=ax+b

f(x)=ax+b is the linear equation

The graph of a linear equation is a line. The value of 'a' tell us the steepness of the line that is the slope of the line .

'b' is the initial value . when x=0, f(x)=a(0)+b

that is f(0)=b

So, 'b' is the initial value or y intercept.

Learn more : brainly.com/question/13407962

Pls help me out on this question, Find the sum of this first 8 terms of the Arithmetic Progression. log x, log x2, logx3

Answers

Okie

First find D

In this case it is log x

Now find those terms which are log x, log 2x, log 3x, ….. log 8x
Now add them
You will get log x36 :)

Given that f(x)=2x-8, determine the average rate of change over the interval [2, 8].

Answers

Answer:

2

Step-by-step explanation:

The average rate of change over [2, 8] is the change in the y-values over the change in the x-values.

[tex]\frac{f(8) - f(2)}{8 - 2}[/tex]

[tex]f(8) = 2(8) - 8 = 16 - 8 = 8[/tex]

[tex]f(2) = 2(2) - 8 = 4 - 8 = -4[/tex]

[tex]\frac{8 - (-4)}{8-2} = \frac{8 + 4}{8-2} = \frac{12}{6} = 2[/tex]

I NEED HELP WITH THIS IXL PROBLEM.

Answers

Step-by-step explanation:

S'(7,-4)

T'(7,-3)

U'(2,-7)

V'(2,-9)

Guided Practice


Evaluate y=9• ( 5 2 ) x ​ for x=− 3.


A.
–15.625


B.
0.036


C.
0.576

Answers

Answer:  C.  0.576

9*(52)=468

x=-3

x= -1404

A.

–15.625

Step-by-step explanation:

y=9*(52)(-3).

y = -1404

Plug in -3 for x and then multiply.

Let's solve for x.

(9)(52)xforx=−3

Step 1: Divide both sides by 468for.

468forx2

468for

=

−3

468for

x2=

−1

156for

Step 2: Take square root.

x=√

−1

156for

or x=−√

−1

156for

Answer:

x=√

−1

156for

or x=−√

−1

156for

x-1/y-4/xy=-1
-3/y-12/xy=1

Answers

Answer:

1) x-1/y-4/xy=-1 Number one, the answer is in picture one.

2) -3/y-12/xy=1 Second, the answer is in picture two.

how many different ways can 3 people sit at a table with 5 seats?

a) 15
b) 60
c) 125
d) 243

Answers

Answer:

The correct answer is B 60 - 5 x 4 = 20 x3 = 60

Answer:

60 ways

Step-by-step explanation:

5P3 = 5!/[3!(5-2)!]

= 5!/(3!2!)

= 5 × 4 × 3

= 60

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