PLEASE HELP WILL MARK BRAINLIEST

Answer:

The present age of Joyal is 14 years.

The present age of Joyal's mother is 42 years

Step-by-step explanation:

Let J denotes the age of Joyal

Let M denotes the age of Joyal's mother

The present age of Joyal’s mother is three times the present age of joyal.

Mathematically,

M = 3J

After 5 years their ages will add up to 66

Mathematically,

(M + 5) + (3J + 5) = 66

M + J + 10 = 66

M + J = 66 - 10

M + J = 56

But we know that M = 3J

3J + J = 56

4J = 56

J = 56/4

J = 14 years

So the present age of Joyal is 14 years.

M = 3J

M = 3(14)

M = 42 years

So the present age of Joyal's mother is 42 years.

Answer:

​3x−1

Step-by-step explanation:

1 Split the second term in 6{x}^{2}+x-16x

​2

​​ +x−1 into two terms.

\frac{6{x}^{2}+3x-2x-1}{4{x}^{2}-1}

​4x

​2

​​ −1

​

​6x

​2

​​ +3x−2x−1

​​  

2 Factor out common terms in the first two terms, then in the last two terms.

\frac{3x(2x+1)-(2x+1)}{4{x}^{2}-1}

​4x

​2

​​ −1

​

​3x(2x+1)−(2x+1)

​​  

3 Factor out the common term 2x+12x+1.

\frac{(2x+1)(3x-1)}{4{x}^{2}-1}

​4x

​2

​​ −1

​

​(2x+1)(3x−1)

​​  

4 Rewrite 4{x}^{2}-14x

​2

​​ −1 in the form {a}^{2}-{b}^{2}a

​2

​​ −b

​2

​​ , where a=2xa=2x and b=1b=1.

\frac{(2x+1)(3x-1)}{{(2x)}^{2}-{1}^{2}}

​(2x)

​2

​​ −1

​2

​​  

​

​(2x+1)(3x−1)

​​  

5 Use Difference of Squares: {a}^{2}-{b}^{2}=(a+b)(a-b)a

​2

​​ −b

​2

​​ =(a+b)(a−b).

\frac{(2x+1)(3x-1)}{(2x+1)(2x-1)}

​(2x+1)(2x−1)

​

​(2x+1)(3x−1)

​​  

6 Cancel 2x+12x+1.

\frac{3x-1}{2x-1}

​2x−1

​

​3x−1

​​  

Answer:

yhyhyhyh rashford gonna score a hat trick vs spurs

Step-by-step explanation:

Answer:

B(3,3)

Step-by-step explanation:

Midpoint = (2,5)

A = (x₁,y₁) = (1,7)

M(x,y) = [tex](\frac{x1+x2}{2} , \frac{y1+y2}{2})[/tex]

M(2,5) = [tex](\frac{1+x2}{2} , \frac{7+y2}{2} )[/tex]

Writing the equations separately for convenience

1) [tex]\frac{1+x2}{2} = 2[/tex]  

=> 1+x2 = 4

=> x₂ = 3

2) [tex]\frac{7+y2}{2} =5[/tex]

=> 7+y2 = 10

=> y₂ = 3

So, the coordinate is,

B = (x₂,y₂) = (3,3)

Answer:

(3,3)

please see the attached picture for full solution

hope it helps..

Good luck on your assignment

Answer:

economy class = 260

business class = 100.

Step-by-step explanation:

for every 13 economy seats, there are 5 business class seats

EC = 13

BC = 5

ADD  to get total = 18

divide 360 by 18 to get the number of groups created.

you get 20.

multiply 20 by each class seats

13 by 20 = 260

5 by 20 = 100

you can confirm by adding the seats to see if you will get 360.

Answer:

A=314.16cm2

Step-by-step explanation:

A=πr2 this is the formula

Answer:

3.142cm^2

Step-by-step explanation:

A=πr^2

A=3.142×10^2

A=3.142×100cm^2

A=314.2cm^2

Answer:

It was a 18.5% Tip

If bill for a meal was $33.75. The customer left $40.00. then 15.625 % is the percentage of the bill was the tip

percentage, a relative value indicating hundredth parts of any quantity.

Given,

The bill for a meal was $33.75.

The customer left $40.00.

We need to find the percentage of tip left on the bill.

40-33.75

6.25

Now we need to find 6.25 is what percentage of 40

40x=6.25

x=6.25/40

x=0.15625

Now multiply with 100

0.156×100=15.625

Hence, 15.625 is the percentage of the bill was the tip.

To learn more on Percentage click:

https://brainly.com/question/28269290

#SPJ2

Answer:

2698 yd^2

Step-by-step explanation:

2·(22x25 + 22x17 + 25x17) = 2698 yd^2

SA = 2(LW) + 2(LH) + 2(HW)

Let L = Length

Let W = Width

Let H= Height

Answer:

(C)Converting to a common denominator

Step-by-step explanation:

Given some of the steps in the derivation of the quadratic formula below:

[tex]\text{Step 3:} -c + \dfrac{b^2}{4a}=a(x^2+ \dfrac{b}{a}x+ \dfrac{b^2}{4a^2})\\\\\text{Step 4a:} -c + \dfrac{b^2}{4a}=a(x+\dfrac{b}{2a})^2\\\\\text{Step 4b:} \dfrac{-4ac}{4a}+ \dfrac{b^2}{4a}=a(x+\dfrac{b}{2a})^2[/tex]

Step 4b is derived from Step 4a by converting the left-hand side to a common denominator 4a.

Therefore, that which best explains or justifies Step 4b is:

(C)Converting to a common denominator

Answer:

C

Step-by-step explanation:

lol

Answer:‍✈️‍✈️?

Step-by-step explanation:

Answer:

#2=-.05 #3=8

Step-by-step explanation:

use pemdas correctly and you will always get the right answer

The answer is -8

This was too easy

Answer:

Angle y is also 40 degrees. Angle x and y are vertical angles, thus they have the same angle measure.

Answer:

50

Step-by-step explanation:

its simple just the degrees is equal orr close to that

Answer:

[tex]x=-\frac{1}{2},-3[/tex]

Step-by-step explanation:

Answer:x=-3,-1/2

Step-by-step explanation:

Multiply 2and 3=6

Multiples are 6an1

2x2+x+6x+3=0

X(2x+1)+3(2x+1)=0

(X+3)+(2x+1)=o

X+3=0 x=-3

2x+1=0 x=-1/2

Answer:

Domain: the set of “Pregant Sheep”

Range: the set of “Lambs Born”

Exaplain why your Relation is a Function.

“The reason it‘s a function is the fact that there is two parents (if you include the dad) and you can have one to three lambs born.  

Step-by-step explanation:

We want to write a real-world example of a relation that is a function.

First, let's describe what a function is.

A function is a relationship that maps elements from a set, the domain, into elements from another set, the range.

Such that each element in the domain can be mapped into only one element in the range.

So for example, if for a given item we have 2 different prices, like:

this is not a function, because the input "bar of soap" is being mapped into two different elements of the range.

Now that we know what a function is, we can create a real-world example.

Let's create a really simple one, let's say that in your local store they sell each bar of soap for $2.

Then, if you buy x of these, the cost will be x times $2, or:

$2*x

Then we can create a function, the cost function, that models the cost of buying x bars of soap at your local store, it is:

c(x) = $2*x

This is a function that models a "real-world" problem.

If you want to learn more, you can read:

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Answer:

6

Step-by-step explanation:

f(6) = -6   this is the value when the x value is 6

g(5) = -5 this is the value when the x value is 5

4 * f(6) -6*g(5)

4*-6 - 6* -5

-24 + 30

6

Answer:

6

_____________________

Answer:

The slope of any equation that is in the form of y = mx + c is the m

Step-by-step explanation:

If you want to know a certain slope. Please provide the equation

[tex]y=mx+b[/tex]

[tex]m[/tex] is the slope.

[tex]m=y_{2} -y_{2}/x_{2}-x_{1}[/tex]

The table says:

[tex]x : -4 , -2 , 0 , 2 , 4\\ y : -16 , -6 , 4 , 14 , 24[/tex]

[tex]m=-6 --16/-2--4[/tex]

[tex]m=10/2[/tex]

[tex]m=5[/tex]

Answer:

-3

Step-by-step explanation:

[tex]f(0)=0^2=0 \\\\g(0)=0-3=-3[/tex]

Hope this helps!

Answer:2) 20cm

             3) 90m

Step-by-step explanation: 2) 10x2=20cm

                                             3) 35x2=70, 20x2=20, 70+20= 90m

Answer:

The length of the missing side is 12.

Step-by-step explanation:

When you solve this, you do 5^2 + b^2 = 13^2

and solve for b. 25 + b^2 = 169

169 - 25 = 144

[tex]\sqrt{144[/tex] = 12

When you check your work, 5^2 + 12^2 = 13^2

25 + 144 = 169

If you have the right triangle, then you can label the longer side with 13, and label the leg 5. the you solve for the other leg. That's how Pythagorean Theorem is used in this context.

I hope this helped. I'm not the best at explaining math.

Answer:

D

Step-by-step explanation:

Proportional relationships go through the origin on the graph so we can eliminate A and B. Also the x and y coordinates have the same ratio so the answer is D because 2:3 = 4:6 = 8:12 = 12:18.

Answer:

-1.8x-6xy

Step-by-step explanation:

The distributive property is one of the properties of real numbers

Mathematically, we can have it expressed as follows;

a •(b+ c) = a•b + a•c

Thus, applying this to the problem at hand, we have;

x(-1.8-6y) = x •(-1.8) - x•(6y)

Opening the brackets we have;

-1.8x-6xy

Answer:

7.81%

Step-by-step explanation:

First, you have to calculate the net earnings by calculating the 80% of the gross income:

gross income= $2,400

net earnings= $2,400*80%= $1,920

Then, you have to calculate the percentage that represents the utility bills spending from the net earnings by dividing $150 by the net earnings and multiplying for 100:

($150/$1,920)*100= 7.81%

According to this, the answer is that 7.81% of Terry's net earnings are spent on utilities.

Answer:

7.8

Step-by-step explanation:

Step-by-step explanation:

P = IV

2000 W = I (120 V)

I = 16.7 A

P = E/t

P = (2000 W × 8 hr) / (1 day)

P = 16,000 W·hr/day

P = 16000 W·hr/day × (365 day / yr)

P = 5,840,000 W·hr/yr

P = 5,840,000 W·hr/yr × (1 kW / 1000 W)

P = 5840 kW·hr/yr

C = 5840 kW·hr/yr × (0.25 $/kW/hr)

C = $1460/yr

Answer:

answer 1: It forms a linear pair with one of the interior angles of the triangle

Step-by-step explanation:

The sum of an exterior angle and its adjacent interior angle is 180 degrees.

Also, linear pair of angles are supplementary.

Answer:

3 minutes

Step-by-step explanation:

We can use ratios to solve

3 blocks           1 block

----------------- = --------------

9 minutes         x minutes

Using cross products

3 * x = 9*1

3x = 9

Divide each side by 3

3x/3 = 9/3

x = 3

So the right answer is 3.

please see the attached picture for full solution

Hope it helps

Good luck on your assignment

Answer:

8 units = L

Step-by-step explanation:

The area of a rectangle is the product of length and width.

A = L*W

If A = 56 units^2 and W = 7 units, then L = (56 units^2) / (7 units) = 8 units = L

9514 1404 393

Answer:

  34.44

Step-by-step explanation:

The distance formula can help you find the lengths of the diagonal sides.

  d = √((x2 -x1)^2 +(y2 -y1)^2)

  DO = √((6 -0)^2 +(0 -7)^2) = √(36 +49) = √85

  OG = √((3 -6)^2 +(-4 -0)^2) = √(9 +16) = 5

The length of NG is 3 -(-3) = 6.

The perimeter is the sum of the side lengths:

  P = DI +IN +NG +GO +OD = √85 +5 +6 +5 +√85 = 16 +2√85

  P ≈ 34.43909 ≈ 34.44 . . . units

Answer:

45.25 yards

Step-by-step explanation:

Answer:

Y=2x

Step-by-step explanation:

Slope is represented by rise/run

Here if is 8/4 = 2

The intercept is 0 since (0,0) lies on the line

So the slope intercept form is

y = 2x

Answer:

y=2x

Step-by-step explanation:

intercept is 0 as one point is (0,0)

Slope is 2 as 8/4= 2

function is then:

y=2x

Answer:

Stan needs about 50 of the 39 cm x 39 cm tiles

or about 155 of the 18 cm x 27 cm tiles

Step-by-step explanation:

Since we are asked to consider only matters of area, we need to calculate first, the area of the patio:

Patio area = 3 m x 2.5 m = 7.5 m^2

Now we consider what surface (in square meters - m^2) each type of tiles cover:

a) for the 39 cm x 39 cm tiles: 0.39 m x 0.39 m = 0.1521 m^2

b) for the 18 cm x 27 cm tiles: 0.18 m x 0.27 m = 0.0486 m^2

Therefore, to cover the area of the patio, the number of tiles type "a" needed is given by the quotient:

7.5 m^2 / 0.1521 m^2 = 49.3096  (about 50 tiles)

while for type "b" tiles the quotient gives:

7.5 m^2 / 0.0486 m^2 = 154.32  (about 155 tiles)