Mathematics High School

x : y = 5 : 3
and
x + y = 56
Work out the value of x - y

Answers

Answer 1

Answer:

14

Step-by-step explanation:

x / y = 5 / 3, then 3x = 5y , x = 5/3y

we can type 5/3y instead of x ;

5/3y + y = 8/3y = 56, then y = 21

.

now let's find x ;

x - 21 = 56, then x = 35

x - y = 35 - 21 = 14

Answer 2

Step-by-step explanation:

pleases try to understand this the second photo is the first, thanks

X : Y = 5 : 3andx + Y = 56Work Out The Value Of X - Y
X : Y = 5 : 3andx + Y = 56Work Out The Value Of X - Y

Related Questions

When y=8, the value of y2−4 is

Answers

12


so when y and a number are next to each other it means multiply them.

so 2•8=16


then subtract the 4


16-4

=12

hope this helps

If the circumference of a circle is 31.4 feet , What is the radius of the circle use 3.14 for π

Answers

Answer:

144

Step-by-step explanation:

YA'LL PLEASE HELP I REALLYYY NEED HELP!!!!! (all links for answers will be deleted)

Identify the algebraic description that maps a point (3, 7) onto another point (–5, 7).
Question options:
A)
(x, y) → (x, y – 8)
B)
(x, y) → (x, y + 8)
C)
(x, y) → (x – 8, y)
D)
(x, y) → (x + 8, y)

Answers

Answer:

C)

(x, y) → (x – 8, y)

The value of y varies directly with x. When y = 79, x = } .
What is the value of y when u is 3 1/4?
Can anyone help ?

Answers

The answer is 493 if you don't add the decimal.

If you do it's 493.5.

You're Welcome :)

The radius of a circle is 7 millimeters. What is the circle's area?
Use 3.14 for a.
square millimeters

Answers

Answer:

153.86

Step-by-step explanation:

formula - πr²

= 3.14 * 7²

= 153.86

Hey can someone help me ? I’ll give brainliest !!

Answers

7 bc I’m so smart thank you ciaoooooo

Answer:

132 kilometers

Step-by-step explanation:

Please help my sis cause im too lazy to do it for herrr

Answers

Answer: -7/4

Step-by-step explanation:

-9/8-5/8=-14/8=-7/4

Answer:

answer: -1 3/4

Hope this helps.

PLZ HELP I MAKE YOU BRAINILY!!!!!

Answers

Answer:

755.3

Step-by-step explanation:

The cylinder volume formula is pi*r^2*height. The r symbolizes the radius, which is 4. The height is 5. Thus, the volume of the cylinder is 5*16*pi = 80pi.

The rectangle's volume is length*width*height. The length is 6, the width is 14, and the height is 6. Therefore, the volume is 6*6*14, which is 504 in.

Now all you have to do is add the two volumes together. 80pi is around 251.3, so 251.3 + 504 = 755.3.

Answer:

I think the answer is B: 755.3^3.

Step-by-step explanation:

Don't hate me if I'm wrong please!!!

To find the volume of multiple figures, just find the volume of each of them and add them together.

Volume of rectangular prism: V = lwh; 14 * 6 * 6 = 504

Volume of cylinder: V = pi * r^2 * h; 16 * 3.14 * 5 = 251.2

504 + 251.2 = 755.2

Since this is the closest answer, the answer is B: 755.3^3.

Please mark me as brainliest!!!!!

Find the length of the midsegment of the trapezoid.

Answers

Answer: 28 i think or 12

Step-by-step explanation:

a friend is buying flowers for mothers day. because it is a friends 38th birthday, your friend wants to have 38 of her favorite flowers. her favorite flowers are daisies at $1.50 each and tulips at $2.50 each. IF the total bill is $67 how many tulips were bought?

Answers

Answer: She bought 28 daises and 10 Tulips.

Step-by-step explanation:

Let x represent the number of daises bought.

Let y represent the number of tulips bought.

Your friend want to have 38 of her favorite flowers. This means that

x + y = 38

Her favorite flowers are daisies at 1.50 each and tulips at 2.50 each if the total bill was 67, it means that

1.5x + 2.5y = 67 - - - - - - - - - - - - 1

Substituting x = 38 - y into equation 1, it becomes

1.5(38 - y) + 2.5y = 67

57 - 1.5y + 2.5y = 67

- 1.5y + 2.5y = 67 - 57

y = 10

x = 38 - y = 38 - 10

x = 28

Answer: She bought 28 daises and 10 Tulips.

Step-by-step explanation:

Let x represent the number of daises bought.

Let y represent the number of tulips bought.

Your friend want to have 38 of her favorite flowers. This means that

x + y = 38

Her favorite flowers are daisies at 1.50 each and tulips at 2.50 each if the total bill was 67, it means that

1.5x + 2.5y = 67 - - - - - - - - - - - - 1

Substituting x = 38 - y into equation 1, it becomes

1.5(38 - y) + 2.5y = 67

57 - 1.5y + 2.5y = 67

- 1.5y + 2.5y = 67 - 57

y = 10

x = 38 - y = 38 - 10

x = 28

Can you plz help me!dddddddd

Answers

Answer:

We are finding hypotenuse:

6^2 + 8^2

36 + 64 = 100

Now we need to find a number that should be squared to equal 100.

10^2 = 100!

10 is your answer.

Please help me, sorry if it’s blurry.

Answers

Answer:

V= 226.19

:)

Step-by-step explanation:

Answer:

226.19 cm

Step-by-step explanation:

Write the following as an expression, "15 added to the product of 7 and c"​

Answers

Answer:

15 + 7c or 15 + 7 * c

Hope this helps!

Jack wants to find out which can of pineapples is the best buy. He has a choice of four
different-sized cans. Which can has the lowest unit price per ounce?

A. 8 ounces for $1.44
B. 18 ounces for $2.88
C. 10 ounces for $1.62
D. 6 ounces for $1.14

HURRY PLEASE

Answers

18 ounces for 2.88

2.88 divided by 18 is .16 which is 16 cents per ounce which is the cheapest of all the options.

Pls help rationalize

Answers

Answer:

1=  0.109

2= 3.46

3 = -(minus)1.24

Step-by-step explanation:

Answer:

See answers below.

Step-by-step explanation:

All of these use the same idea: multiply numerator and denominator by the conjugate radical (an identical expression but with the sign between terms changed).

[tex]\frac{1}{13-\sqrt{15}}\cdot\frac{13+\sqrt{15}}{13+\sqrt{15}}=\frac{13+\sqrt{15}}{169-15}}\\\\=\frac{13+\sqrt{15}}{154}[/tex]

[tex]\frac{1}{\sqrt{13}-\sqrt{11}} \cdot \frac{\sqrt{13}+\sqrt{11}}{\sqrt{13}+\sqrt{11}}=\frac{\sqrt{13}+\sqrt{11}}{13-11}\\\\=\frac{\sqrt{13}+\sqrt{11}}{2}[/tex]

[tex]\frac{1}{\sqrt{21}+\sqrt{29}}\cdot\frac{\sqrt{21}+\sqrt{29}}{\sqrt{21}+\sqrt{29}}=\frac{\sqrt{21}+\sqrt{29}}{21-29}\\\\=\frac{\sqrt{21}+\sqrt{29}}{-8}[/tex]

Note:  Here's an example of what happens when you multiply conjugate radicals.

[tex](\sqrt{13}-\sqrt{11}})(\sqrt{13}+\sqrt{11})=13-\sqrt{11}\sqrt{13}+\sqrt{13}\sqrt{11}-11=13-11[/tex]

When you FOIL those binomials, the square roots go away!

Johann borrows money from his parents to purchase a bike. He makes weekly payments to his parents to repay the money
borrowed. The total amount of money repaid at the end of week n can be represented using the recursive formula a, = 10+ an-1-
At the end of the fourth week, Johann had repaid his parents a total of $55. What is the total amount Johann had repaid his
parents at the end of the first week?
o $10
$20
$25
$35​

Answers

Answer:

$25

Step-by-step explanation:

An = 10 + An-1

At the end of 4th week ; amount repaid = $55

A4 = 10 +

An = a + (n - 1)d

n = 4

A4 = 10 + (4 - 1)d

55 = 10 + 3d

55 - 10 = 3d

45 = 3d

d = 15

Hence, at the end of first week :

A1 = a + d

$10 + $15

= $25

will you have enough room for a dance floor that is 8 m x 8 m please explain why or why not


asap ​

Answers

8mx8m will not be enough room the average room for a dance floor is 15 x 15

Can someone help with this, i don’t know how to do it

Answers

Answer:

X=12

Step-by-step explanation:

In all Triangle, the sum of the interior angles =180

180-86-46=4x

4x=48

x=12

PLSS HELP MATH I NEED NOW I WILL GIVE BRAINLIEST TO RIGHT ANSWER

Answers

Answer:

D

Step-by-step explanation:

If you solve y = -x - 2 you can plot (-4,2)

The cadets had to complete a 12 mile hike in 3 hours. How many miles an hour did they have to walk?

Answers

4 mph, 12/3=4
Hope this helps!

AREA OF CIRXLES HELP PLS​

Answers

Answer:

A = 147 cm²

Step-by-step explanation:

A = πr²

A = (3)(7)²

A = 3(49)

A = 147 cm²

Hope this helps!

PLEASE HELP 50 POINTS WILL GIVE BRAINLY

Answers

-4. Answer is negative 4

Answer:

-4. Answer is negative 4

Step-by-step explanation:

did on edge 2021

There are 4 second-grade classrooms that share 15 packs of paper. How much paper should each classroom get

Answers

Answer:

3.75

Step-by-step explanation:

To find the quotient of 726.02 and 1,000, move the decimal point in 762.02___Places to the ____

Choices for blank 1.

A. 2
B. 3
C. 4
D. 5

Choices for blank 2.

A. Left
B. Right
NO LINKS!!

Answers

from blank one five

from blank two is right

Help would be nice! Question is can you help me?
All you have to do is find the surface area, free brainliest if you get it right simple as that

No links or stuff like that

Otherwise I will eat your family :)

Answers

Answer:

84

Step-by-step explanation:

you just got to do 12 * 14 , then divide by 2. so the answer is 84

for the entire thing, the area would be 480

84 please don't eat my family

How do you do this ??????????????????????

Answers

Answer:

b

Step-by-step explanation:

you can take the rectagel and you x the rectagel

Alan bought 16 cupcakes for
his class. Each cupcake costs
$1.49. How much did he
spend on cupcakes?

Help

Answers

the answer is $23.84. 16 x 1.49 = 23.84

Describe the transformation using words

Answers

Answer:

The type of transformation that is used here is translation. Translation is when one shape slides to another location. According to the picutre, the shape is the same size and not rotated. Therefore, it is a translation.

please help me asap im so confused ​

Answers

Answer:

RPT = 208

Step-by-step explanation:

Arc ST = 97                            Given

Arc RP = 180 - 97                   Straight line

Arc RP = 83

Arc PT = 125                          Given

Arc RPT = 125 + 83               Add the two arcs together.

Arc RPT = 208

How can I find the height of a pyramid that has a base of 13m and a 13m lateral height

Answers

Answer:

Dnnd

Step-by-step explanation:

Answer:

The lateral faces meet at a common vertex. The height of the pyramid is the perpendicular distance from the base to the vertex. A pyramid is a regular pyramid if its ... A triangular pyramid has a triangle base. regular pyramid. A right pyramid is ...

Missing

Step-by-step explanation:

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