Ask question

Ask question

All categories

AleksandrR [38]

2 years ago

14

Can anyone help? Will give Brainly + 22 pts.

1 answer:

Volgvan2 years ago

4 0

Answer:

4 and 19

Step-by-step explanation:

One number : 4x+3 (this is 3 more than 4 times x)

Another number: x This is tricky because the main number for comparison is "another number", which is x

Sum of the #s is 23: Means add them and = 23, so

x+(4x+3) = 23

5x+3=23

5x=20

x=4 and the other # is 4x+3, so 4(3)+3=19

You might be interested in

How do you do a flow proof?

nikdorinn [45]

I can talking a flow proof about geometry
A flow proof is just one representational style for the logical steps that go into proving a theoremor other proposition; rather than progress read in two columns, as traditional proofs do flow proofs utilize boxes and linking arrows to show the structure or the argument.

5 0

2 years ago

Number 1 please <br> Add the number in each set<br> A 20,30,50,<br> B 3,9,7,4,1

Nataly [62]

Answer:

a=110 b=24

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

The school band sold T-shirts to raise money for an upcoming trip. It sold 120 shirts, which was 30 percent of the total sales o

vivado [14]

Answer:

u stoled my points

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Fritz is recording the decay of radioactive material. The table displays the

damaskus [11]

Answer:

Every week, the radioactivity decreases by a factor of 5

After 1 week, it goes from 5,000 to 1,000

2 weeks 1,000 / 5 =200

3 weeks 200 / 5 = 40

4 weeks 40 / 5 = 8

5 weeks 8 / 5 = 1.6

6 weeks 1.6 / 5 = 0.064

7 weeks 0.064 / 5 = 0.0128

8 weeks .0128 / 5 = 0.00256

9 weeks 0.00256 / 5 = 0.000512

10 weeks 0.000512 / 5 = 0.0001024

Step-by-step explanation:

3 0

2 years ago

cylinder shaped can needs to be constructed to hold 200 cubic centimeters of soup. The material for the sides of the can costs 0

Dafna11 [192]

Answer:

Radius=2.09 cm

Height,h=14.57 cm

Step-by-step explanation:

We are given that

Volume of cylinderical shaped can=200 cubic cm.

Cost of sides of can=0.02 cents per square cm

Cost of top and bottom of the can =0.07 cents per square cm

Curved surface area of cylinder= $2\pi rh$

Area of circular base=Area of circular top= $\pi r^2$

Total cost,C(r)= $0.02\times 2\pi rh+2\pi r^2\times 0.07$

Volume of cylinder, $V=\pi r^2 h$

$200=\pi r^2 h$

$h=\frac{200}{\pi r^2}$

Substitute the value of h

$C(r)=0.02\times 2\pi r\times \frac{200}{\pi r^2}+2\pi r^2\times 0.07$

$C(r)=\frac{8}{r}+0.14\pi r^2$

Differentiate w.r.t r

$C'(r)=-\frac{8}{r^2}+0.28\pi r$

$C'(r)=0$

$-\frac{8}{r^2}+0.28\pi r=0$

$0.28\pi r=\frac{8}{r^2}$

$r^3=\frac{8}{0.28\pi}=9.095$

$r=(9.095)^{\frac{1}{3}}=2.09$

Again, differentiate w.r.t r

$C''(r)=\frac{16}{r^3}+0.28\pi$

Substitute the value of r

$C''(2.09)=\frac{16}{(2.09)^3}+0.28\pi=2.63>0$

Therefore,the product cost is minimum at r=2.09

h= $\frac{200}{\pi (2.09)^2}=14.57$

Radius of can,r=2.09 cm

Height of cone,h=14.57 cm

4 0

2 years ago