All categories

1 year ago

when 5 times a number is increased by 10, the answer is the same as when 100 is decreased by the number. What is the number?

Mathematics

1 answer:

Tanzania [10]1 year ago

7 0

$5x+10=100-x\\6x=90\\x=15$

You might be interested in

A, B and C lie on a straight line.

lilavasa [31]

Answer:

y+what ever the angle inside=180 since its on a line

180-128=52

52+z+x=180since thats always the angles of a triangle added up

52+91+x=180

add

143+x=180

-143

x=37

Hope This Helps!!!

8 0

2 years ago

0.56 as a fraction in simplest form.

Vlada [557]

Answer:

14/25

Step-by-step explanation:

0.56=56/100=28/50=14/25

4 0

2 years ago

A triangle has two constant sides of length 5 feet and 7 feet. The angle between these two sides is increasing at a rate of 0.9

o-na [289]

Answer: $12.74 ft^2/s$

Step-by-step explanation:

Given

Two sides of triangle of sides 5 ft and 7 ft

and angle between them is increasing at a rate of 0.9 radians per second

let $\theta$ is the angle between them thus

Area of triangle when two sides and angle between them is given

$A=\frac{ab\sin C}{2}$

$A=\frac{5\times 7\times \sin \theta }{2}$

Differentiate w.r.t time

$\frac{\mathrm{d} A}{\mathrm{d} t}=\frac{35\cos theta }{2}\times \frac{\mathrm{d} \theta }{\mathrm{d} t}$

at $\theta =\frac{\pi }{5}$

$\frac{\mathrm{d} A}{\mathrm{d} t}=\frac{35\times cos(\frac{\pi }{5})}{2}\times 0.9$

$\frac{\mathrm{d} A}{\mathrm{d} t}=12.74 ft^2/s$

4 0

3 years ago

(picture included) brainliest

Dimas [21]

Step-by-step explanation:

118 is the answer 238-120 = 118

5 0

2 years ago

Let´s try this again. Select all the correct equations.

nordsb [41]

Answer:

Step-by-step explanation:

5 0

2 years ago