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ElenaW [278]
3 years ago
7

(x + 40) (3x)º What is the value of x? 60 20 35 70

Mathematics
2 answers:
joja [24]3 years ago
7 0
The answer is twenty (20)
garri49 [273]3 years ago
5 0

Answer: The answer is B.) 20

Step-by-step explanation:

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An accident at an oil drilling platform is causing a circular-shaped oil slick to form. The volume of the oil slick is roughly g
Basile [38]

Answer:

V(t)=0.0112\pi t^{2}

Step-by-step explanation:

we have

V(r)=0.07\pi r^{2} -----> equation A

r(t)=0.4t -----> equation B

To find out (V of r)(t) substitute equation B in equation A

V(r(t))=V(t)

V(t)=0.07\pi (0.4t)^{2}

V(t)=0.07\pi (0.16)t^{2}

V(t)=0.0112\pi t^{2}

3 0
3 years ago
What is 6x+7y=7 in slope intercept form?
leva [86]

Answer: The answer is y= -6/7x+1

4 0
3 years ago
There are 270 students at Colfax Middle School, where the ratio of boys to girls is 5:4. There are 180 students at Winthrop Midd
zavuch27 [327]

Given:

Total number of students at Colfax Middle School = 270

Ratio of boys to girls is 5:4.

Total number of students at Winthrop Middle School = 180

Ratio of boys to girls is 4:5.

The two schools hold a dance and all students from both schools attend.

To find:

The fraction of the students at the dance are girls

Solution:

There are 270 students at Colfax Middle School, where the ratio of boys to girls is 5:4.

5+4=9

Number of boys =270\times \dfrac{5}{9}=150

Number of girls =270\times \dfrac{4}{9}=120

There are 180 students at Winthrop Middle School, where the ratio of boys to girls is 4:5.

4+5=9

Number of boys =180\times \dfrac{4}{9}=80

Number of girls =180\times \dfrac{5}{9}=100

Now,

Total number of students in both schools = 270+180

                                                                = 450

Total number of girls in both schools = 120+100

                                                         = 220

The fraction of the students at the dance are girls is

\text{Required fraction}=\dfrac{\text{Total number of girls in both schools}}{\text{Total number of students in both schools}}

\text{Required fraction}=\dfrac{220}{450}

\text{Required fraction}=\dfrac{22}{45}

Therefore, the required fraction is \dfrac{22}{45}.                                

7 0
3 years ago
Three times a number plus five equals twenty
gladu [14]
3x + 5 = 20

x = 5

Hope this helps
8 0
3 years ago
Read 2 more answers
Are there any guys on here that are actually nice oh and today is my birthday ;)
insens350 [35]

Answer:

6 and hello there, how ya doing?

Step-by-step explanation:

Happy Birthday btw hopefully everything is working out for you and have a wonderful birthday.

7 0
3 years ago
Read 2 more answers
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