Help with these both too

Answer:

8y=21x

Step-by-step explanation:

i'm not sure how to draw this out in a picture but the equation is above.

like the question states, Cassidy paints 8 faces in every 21 minutes. the amount of time she spends painting one face would be figured out by dividing 21 by 8 giving you 2.625minutes so i would just say around 3 minutes. so to draw a picture maybe just draw 8 faces and then circle them and say 21 minutes and then put x (to show the time she spent painting each face) under the faces in the picture and then show your work solving this.

in order to find out the ratio of time spent drawing one person's face we have to take the information given and divide the total of 21 minute span by the 8 different faces she painted in order to find how long she spends on 1 face.

hope this helps, if it did please make sure to leave a like, rate, and give me the brainliest if possible!

thanks have a great day!

Answer:

B

Step-by-step explanation:

X = 3

Y= 5

Answer:

21

Step-by-step explanation:

the common is 3 so the missing side from thw other triangle it is 8p7 so 3 x 7 is 21!

Buying 10 cans for $5.80 is the best deal.

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

According to the question

We have

Cost of eight cans is $4.88

⇒ cost of one can = [tex]\frac{4.88}{8}[/tex] = $0.61

Cost of 10 cans is $5.80

⇒ cost of one can = [tex]\frac{5.80}{10}[/tex] =$0.58

Cost of 3 cans is $7.20

⇒ cost of one can = [tex]\frac{7.20}{3}[/tex] = $2.4

Hence, buying 10 cans for $5.80 is the best deal.

Learn more about the unitary method here:

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Answer:

(-4t^2+6t-2)+(t²+7t+3)

-4t²+6t-2+t²+7t+3

-4t²+t²+6t+7t-2+3

-3t²+13t+1

Answer:

a. 1

b. any number to the zero power is just the product of no numbers at all, which is the multiplicative identity, 1

Step-by-step explanation:

Answer and explanation:

a) This value is equal to one because it is just the number divided by itself.

b) Since any number divided by itself is equal to 1, 6^3/6^3 also has to equal to one. This also means that when we bring the 6^3 up to the numerator, the equation 6^3-3, which simplifies into 6^0 also has to equal 1, because it is equivalent to being divided by itself.

Hope this helps!!

Answer:

$72

Step-by-step explanation:

100 - 10% = 90

90 - 20% = 72

Answer:

8 in or .67

Step-by-step explanation:

Answer:

1 foot

Step-by-step explanation:

he used up 3/4 of it so 16x0.75=12 to find remaining length subtract 16-12=4

so there is a 4 foot board left then he gives 1/4 of that to his brother 4x0.25=1

so he gave his brother 1 foot of wood

Answer:

c. 84

Step-by-step explanation:

120 times .70 = 84

Answer:

Step-by-step explanation:

166:581

Answer:

um a

Step-by-step explanation:

I'm pretty sure (98%) it is A.

Let me know if I'm wrong.

The radius= 4.21 cm

The circumference of the circle is 26.44 cm.

we have given that

Area  = 62 square centimetres.

What is the formula for the area of circle

[tex]A=\pi r^{2}[/tex]

A=62 and pi=3.14

[tex]62=3.14r^{2}[/tex]

find the value of r square divide both side by 3.14

[tex]r^2=\frac{62}{3.14}[/tex]

[tex]r^2=17.75\\[/tex]

[tex]r=4.21cm[/tex]

[tex]circumference of circle =2\pi r[/tex]

[tex]C=3.14)(4.21)\\\\C= 2 (13.22) \\\\C= 26.44.cm[/tex]

Therefore we get,

The radius= 4.21 cm

The circumference of the circle is 26.44 cm.

To learn more about the circumference of the circle visit:

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Answer:

It's graph is symmetric to the origin. Cos (x) on the other hand is an even function cos (-x) = cos (x), and its graph is symmetric to the y-axis. Notice also that the graphs are exactly the same shape but horizontally shifted /2 units. They are related by: sin (x) = cos (x - /2) and cos (x) = sin (x + /2).

Step-by-step explanation:

Answer: 28.32

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

-12

---- if a = -4

a

-12

-----

-4

= 3

Answer:

4/9 of sales are veggie 5/9 are turkey

4/(4+5)=4/9

5/(4+5)= 5/9

4/9 x 27 = 12

5/9 x 27 = 15

12 veggie subs sold and

15 turkey subs sold

12+15=27 total sold

Step-by-step explanation:

Answer:

Option C

Step-by-step explanation:

Area of the composite figure = Sum of the areas of three rectangles given

                                                = (3x)(x) + 4x + 3(3x)

                                                = 3x² + 4x + 9x

                                                = 3x² + 13x

Since, area of the figure = 82

Therefore, expression representing area of the figure is,

3x² + 13x = 82

Option (C) will be the answer.

Here, x is a variable.

And we can get the value of x by using quadratic formula.

Answer:

l=a/w

Step-by-step explanation:

In order to find I you would need to isolate it. In order to do this, you divide both sides by w and end up with a/w=l.

Answer:

x=7

y= -2

Step-by-step explanation:

x+3y=1 ---------------- (1)

−3x−3y=−15 -------------(2)

Solve Equation (1) for x

x=1−3y

Substitute x=1−3y in equation (2)

−3(1−3y)−3y=−15

−3+9y−3y=−15

−3+6y=−15

6y=−15+3=−12

y=−12/6=−2

y=−2

Substitute y=−2 in equation (1)

x+3(−2)=1

x−6=1

x=1+6=7

x=7

Answer:

Step-by-step explanation:

4+3+5= 12 marbles

3/12 * 2/11 = 6/132 = 4.5%

Answer:

9m

Step-by-step explanation:

Answer:

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