I’m stuck lol if you know and can explain this pleas help tysm

Answer:

D.

Step-by-step explanation:

Because 36:20 simplified is 9:5.

Answer:

It is D 9:5

Step-by-step explanation:

Beacuse 9x4= 36

and 5x4= 20

so 36:20 or 9:5

Answer:

D

Step-by-step explanation:

Divide 16 by 4 to get the denominator of 4. Then divide 12 by 4 to get three. Therefore your answer is D. 3/4

Answer:

3/4

Step-by-step explanation:

All I did was divide the top and bottom number by 4. 12/4= 3 and 16/4=4

Answer:

63

Step-by-step explanation:

Answer:

8/5-12x

Step-by-step explanation:

-4(-2/5+3x)

Multiply each term inside the parentheses by -4

-4 * -2/5 + -4 * 3x

8/5-12x

Answer:

-1.6+12x

Step-by-step explanation:

First you do -4*2/5 + -4*3x. Which will give you -1.6+ 12x

Answer:

(i) we will be finding the acceleration here, in the first 20 seconds the velocity was 10

a = velocity/time

a = 10/20

a = 0.5 ms -2

(ii) difference in distance of the bus and bicycle will be given by formula of velocity

velocity of bicycle

10 * 80 = distance

800 metres

velocity of bus

for first 20 seconds( distance= velocity* time)

200 metres

from 20 seconds to 60 seconds, it will be for 40 seconds

then distance will be,

400 metres

final 20 seconds

200 metres

adding the distances of bus it will be 800 metres.

the difference in distance will be 0 metres.

this is wat i think

Elena read X + 0.625 minutes.

One mathematical expression makes up a term. It might be a single variable (a letter), a single number (positive or negative), or a number of variables multiplied but never added or subtracted. Variables in certain words have a number in front of them. A coefficient is the number used before a phrase.

Given:

Lin read for X minutes and Elena read for 5/8 more than that.

That means,

the number of minutes Elena read,

= number of minutes Lin read + 5/8

= X + 5/8

= X + 0.625

Therefore, X + 0.625 is the required expression.

To learn more about the expression;

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Answer:

x2 = 4py

Step-by-step explanation:

Answer:

11v+35v-30

Step-by-step explanation:

Answer:

Commutative property

Step-by-step explanation:

The  word commutative means ¨move around¨

Answer:

It's B/2/ Commutative property.

Step-by-step explanation:

you can tell.

Answer:

17

Step-by-step explanation:

Answer:

[tex] \frac{1}{10} [/tex]

Step-by-step explanation:

the answer is just

[tex] \frac{1}{10} [/tex]

Answer:

11/111

Step-by-step explanation:

Let x=0.099099099...

1000x=99.099099..

subtract

999 x=99

x=99/999=11/111

Answer:

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

[tex]m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\ [/tex]

where

(x1 , y1) and (x2 , y2) are the points

From the question we have

[tex]m = \frac{5 - 2}{4 - 3} = \frac{3}{1} = 3 \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

$207

Step-by-step explanation:

Given the following :

Data:

X : Distance From Times Square (city blocks)

Y: Cost of a Room (dollars) (y)

The linear regression model generated for the data :

y = -7.8x + 246.3

y = predicted variable ; - 7. 8 = slope of model ; x = predictor variable ; 246.3 = intercept

Using the model:

The cost of a Room 5 block away :

x = 5

y = -7.8(5) + 246.3

y = - 39 + 246.3

y = $207.3

Area = 81 pi mi2

Circumference = 18 pi mi

Answer:

-9x-2

Step-by-step explanation:

-7-3x+5-6x

=(-3x-6x) + (-7+5)

=(-9x)+(-2)

= -9x - 2

First, use the associative property of addition to reorder the terms in parentheses. Then, combine like terms and you will get your simplified answer of -9x - 2. Hope this helps!

Answer:

Step-by-step explanation:

Given the frequency vibrations for a certain guitar string modeled by the equation

F = 200√T where:

T is amount of tantrums in pounds

If the frequency of the vibrations is 600 vibrations per second, the amount of pounds in tantrums will be gotten by substituting F = 600 into the equation and calculating T as shown:

600 = 200√T

Divide both sides by 200

600/200 = 200√T /200

3 = √T

Square both sides

3² = (√T)²

9 = T

T = 9

Hence 9 pounds of tantrum was used to plug the string

Answer:

11 hours as a cashier

and 2 hours as a teacher

11 x 8 = 88

6 x 2 = 12

88 + 12 = 100

Step-by-step explanation:

Given:

Jody earns $10 per hour babysitting and $15 per hour doing yardwork.

This week she worked 34 hours and earned $410.

To find:

The system of equations models this situation.

Solution:

Let x represents the number hours she babysat and y represents the number of hours she did yardwork.

Total number of hours is 34.

[tex]x+y=34[/tex]

Total income is $410.

[tex]10x+15y=410[/tex]

Therefore, the required system of equations has equations [tex]x+y=34[/tex] and [tex]10x+15y=410[/tex].

Answer:

8

Step-by-step explanation:

3z-1

putting the value of z

=3×3-1

=9-1

=8

Answer:

8

Given:

z=3

Step-by-step explanation:

3z – 1

3(3)-1

9-1

8

hope this helps you❤

Answer:

x=20-y

y=20-x

Step-by-step explanation:

divide by 2 on both sides: x+y=20

to find x, subtract y:

x=20-y

to find y, subtract x:

y=20-x

nothing else can be done unless you know either y or x.

Answer:

x= -2

Step-by-step explanation:

so D is the answer

Answer:

[tex]\boxed {x = -2}[/tex]

Step-by-step explanation:

Solve for the value of [tex]x[/tex]:

[tex]9 - 4x = 17[/tex]

-Subtract both sides by [tex]9[/tex]:

[tex]9 - 9 - 4x = 17 - 9[/tex]

[tex]-4x = 8[/tex]

-Divide both sides by [tex]4[/tex]:

[tex]\frac{-4x}{-4} = \frac{8}{-4}[/tex]

[tex]\boxed {x = -2}[/tex]

Therefore, value of [tex]x[/tex] is [tex]-2[/tex].

Answer:

trouts = 10 and bears = 14

Step-by-step explanation:

Let number of trouts and bears be x and y respectively.

This means that since he caught 24 trout and bass, we have;

x + y = 24 - - - (eq 1)

Now, average weight of trout is 2.5 pounds and average weight of bass is 8 pounds.

Thus;

2.5x + 8y = 137 - - - (eq 2)

From eq(1), let's make x the subject.

Thus;

x = 24 - y

Put 24 - y for x in eq(2)

2.5(24 - y) + 8y = 137

60 - 2.5y + 8y = 137

5.5y + 60 = 137

5.5y = 137 - 60

y = 77/5.5

y = 14

x = 24 - 14

x = 10

Thus, trouts = 10 and bears = 14

Answer:

x = 4°

Step-by-step explanation:

All angles in a triangle add up to 180°

16x - 4 + 30 + 90 = 180

Rearrange

16x = 180 - 90 - 30 + 4

16x = 64

x = 4°

Answer:

x    -3   -2   -1     0    1   2   3

y    10    4    0   -2   -2

Step-by-step explanation:

The given equation is y=x²-x-2.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

We need to find the y values of the give x values.

Given that, x = -3  -2  -1  0  1  2  3

When x = -3, y = (-3)²-(-3)-2

= 9+3-2 = 10

When x = -2, y = (-2)²-(-2)-2

= 4+2-2

= 4

When x = -1, y = (-1)²-(-1)-2

= 1+1-2

= 0

When x = 0, y = 0²-0-2

= -2

When x = 1, y = 1²-1-2

= -2

When x = 2, y = 2²-2-2

= 0

When x = 3, y = 3²-3-2

= 4

So, the complete table is

х  -3  -2  -1   0   1   2   3

y  10  4   0  -2  -2  0   4

There, the y values of the given x values in the given equation is y = 10, 4, 0, -2, -2, 0, 4.

To learn more about an equation visit:

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"Your question is incomplete, probably the complete question/missing part is:"

Complete the table for values for y=x²-x-2

х -3  -2  -1  0  1  2  3

y

30 i think

i think this is it because if i think it i know it ykwim hehhehhe mwah love uu

Answer:

20-length

10-width

Step-by-step explanation: