Find the value of x
a. 65
b. 48.7
c. 77
d. 39.3

Answer:

i think its 72

Step-by-step explanation:

Answer:

Please check explanations

Step-by-step explanation:

Here, we want to interpret the meaning of the slope

The slope generally refers to the change in y values with corresponding change in x value

with respect to this question, we can see that the slope is negative

What this mean is that the rate of change in the level of oxygen measured in liters is decreasing with an increase in the time

This means that as more time elapses, more oxygen is used up leading to a decrease in the liters of oxygen present

Answer:

um

Step-by-step explanation:

um

Answer:

[tex]\frac{3}{5} = \frac{18}{30}[/tex]

Step-by-step explanation:

To solve this proportion, we will divide the two given denominators.

Now, we have: 30 ÷ 5 = 6

Next, we will multiply the given numerator by the quotient: 3 × 6 = 18

So, our final proportion will have to be:

[tex]\frac{3}{5} = \frac{18}{30}[/tex]

Answer:

X = 18

Step-by-step explanation:

plz refer to the picture

Answer:

(3, -4) or x = 3 and y = -4

Step-by-step explanation:

Hope this helps!

Answer:

63

Step-by-step explanation:

Answer: 5.46

Step-by-step explanation: 2x8.2 / 3

check out my yt (The ii clan)

Answer:

1

Step-by-step explanation:

if you substitute 1 in for x, you would see that 5 = 5

hope this helps!

Answer:

4.15

Step-by-step explanation:

Answer:

Height (h)=8 in

Base(b)=10in

Area (A) of a triangle = 1/2*b*h

A=8in*10in=80in sqr

Step-by-step explanation:

The sticker is in triangular form so one has to Area of triangle formula: 1/2x base x height

Step-by-step explanation:

at 3=3

at 0=9

at 4=1

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

[tex]1 = 4a + b \\ 3 = 3a + b \\ 2 = - a \\ a = - 2 \\ 1 = - 4 \times 2 + b \\ b = 1 + 8 = 9 \\ y = - 2x + 9[/tex]

Answer:

y=-2x+9

Step-by-step explanation:

From looking at the line you can already tell that the slope is going to be negative, and the y-intercept is going to be 9, since that's where y is when x is 0. You can see that when x is one, y is 7. When x is 2, y is 5. And when x is 3, y is 3.

So:

0: 9

1:7

2:5

3:3

And the difference of y over the difference of x is the slope

-2/1=-2

So the slope is -2

Therefore, putting the equation together makes:

y=-2x+9

Hope this helps!

Answer

5.33 units

Step-by-step explanation:

uh kakis

Answer:

25 miles per hour

Step-by-step explanation:

.5=12.5 and .5×2= 1

12.5×2=25

Answer:

x • (3x + 1) • (x + 2) • (2x - 3)

Step-by-step explanation:

Answer:

Approximately [tex]3410[/tex] steps each hour.

Step-by-step explanation:

Given: On Tuesday, Julissa worked from 9:00 A.M. to 3:00 P.M.

Julissa had walked [tex]20,458[/tex] steps preparing orders to be shipped.

To find: Number of steps, approximately, she walked each hour.

Solution: We have,

Total number of steps [tex]=20,458[/tex] steps.

Number of hours, from 9:00 A.M. to 3:00 P.M. [tex]=6[/tex] hours.

So, number of steps she walked each hour [tex]=\frac{20,458}{6} =3409.67[/tex] steps.

Hence, Julissa walked approximately [tex]3410[/tex] steps each hour.

Answer:

21.6

Step-by-step explanation:

i did the math

Answer:

5,070

Step-by-step explanation:

Answer:

14.6

Step-by-step explanation:

I have to say I hate it is a celebrity worth knowing about a person

Answer:

Each person will pay $9.78

Step-by-step explanation:

Given that:

Amount of bill = $34

Tip = 15%

Amount of tip = [tex]\frac{15}{100}*34[/tex]

Amount of tip = 0.15 * 34

Amount of tip = $5.10

Amount after bill = 34 + 5.10 = $39.10

Number of people = William + three friends = 4

Per person share = [tex]\frac{39.10}{4}[/tex]

Per person share = $9.775

Rounded to two decimal places

Per person share = $9.78

Hence,

Each person will pay $9.78

Answer:

Plane A:

The rate of change or slope of function A is: m = 470

It means plane A is flying 470 miles per hour.

Thus, the rate of speed of plane A is 470 miles per hour.

Plane B:

The rate of change or slope of Plane B is: m = 480

It means Plane B is flying 480 miles per hour.

Thus, the rate of speed of plane A is 480 miles per hour.

Therefore, we conclude:

Step-by-step explanation:

The slope-intercept form of the line equation

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

where

Plane A

From the given equation

y = 470x

where

x is the time that plane flies in hours

y is the distance the plane flies in miles

Thus, comparing with the slope-intercept form y = mx+b

The rate of change or slope = 470

It means plane A is flying 470 miles per hour.

Plane B

Given the table

Time (h)                 1            2             3            4

Distance (mi)        480       960         1440     1920

Finding the slope by taking any two points, let say, (1, 480) and (2, 960)

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(1,\:480\right),\:\left(x_2,\:y_2\right)=\left(2,\:960\right)[/tex]

[tex]m=\frac{960-480}{2-1}[/tex]

Refine

[tex]m=480[/tex]

Therefore, the rate of change or slope of Plane B is: m = 480

It means Plane B is flying 480 miles per hour.

Conclusion:

Plane A:

The rate of change or slope of function A is: m = 470

It means plane A is flying 470 miles per hour.

Thus, the rate of speed of plane A is 470 miles per hour.

Plane B:

The rate of change or slope of Plane B is: m = 480

It means Plane B is flying 480 miles per hour.

Thus, the rate of speed of plane A is 480 miles per hour.

Therefore, we conclude:

Answer:

Add the 1/3 to look for the r

Step-by-step explanation:

good luck

Answer:

I’m pretty sure it’s just 3x^2

Step-by-step explanation:

6x^3/2x^4= 3x^-1

(3x^-1)2= 3x^2

Answer:x=4 y=-2

Step-by-step explanation:

3x-5y=22

3x+1.5y=9

-6.5y=13

6.5y=-13

0.5y=-1

Y=-2

Replace/substitute

2x-2=6

2x=8

X=4

2x+y=6---------(2)

y=6-2x---------(3)

putting value of y on equation

3x-5y=22

3x-5(6-2x)=22

3x-30+10x=22

13x=22+30

13x=52

x=52/13

x=4

putting value of x on equation (3)

y=6-2x

y=6-2.4

y=6-8

y=-2

Answer:

0.408

48%

3.41

10

4996

7100

Step-by-step explanation:

Answer:

It should be 0.408, 48%( which is equal to 0.48), 3.41,10,4996,and 7100

Step-by-step explanation:

Answer:

Rhian did better in the Math test.  

Step-by-step explanation:

Given: Rhian scored [tex]14[/tex] out of [tex]17[/tex] in a Math test. In the English test she scored [tex]31[/tex] out of [tex]39[/tex].

To find: In which test did she do better?

Solution:

We have,

Rhian scored [tex]14[/tex] out of [tex]17[/tex] in a Math test.

Rhian scored [tex]31[/tex] out of [tex]39[/tex] in an English test.

So, first we need to find the percentage of the marks scored.

Percentage in the Math test [tex]=\frac{14}{17}\times100=82.35 \%[/tex].

Percentage in the English test [tex]=\frac{31}{39}\times100= 79.49\%[/tex].    

Clearly, the percentage in the Math test is greater than the percentage in the English test.

So, Rhian did better in the Math test.    

Answer:

maths

Step-by-step explanation:

as the percentage for maths is 82.

Answer:

A: 4/10

Step-by-step explanation:

There a four numbers that are greater that 6 : 7,8,9,10

Since it is out of 10, the probability that the first person would choose a number greater than 10 is 4/10