3 years ago

8 more than a number is equal to 40

Mathematics

1 answer:

dem82 [27]3 years ago

8 0

Answer:

n+8 = 40

n=32

Step-by-step explanation:

Let the number be n

8 more than means

n+8

is equal to

n+8 =

n+8 = 40

We can solve this by subtracting 8 from each side

n+8-8=40-8

n = 32

The number is 32

You might be interested in

Evaluate 7r-15/8 when r=3 and 8=5

Natali [406]

Answer:

Step-by-step explanation:

multiply 7 and 3

reduce 15/5 to 3

subtract 21-3

8 0

3 years ago

Read 2 more answers

C) Which of these numbers is a square number?

-BARSIC- [3]

Answer:

A is the correct answer

3 0

2 years ago

Read 2 more answers

A tower casts a shadow that is 60 feet long when the angle of elevation of the sun is 65˚. How tall is the tower? Round answer t

r-ruslan [8.4K]

Answer: Tthe tower is 129 feet tall.

Step-by-step explanation:

According to trigonometry in a right triangle:

$\tan\theta =\dfrac{\text{Side opposite to }\theta}{\text{Side adjacent to }\theta}$

Let x be the height of the tower.

Given , $\theta=65^{\circ}$

Since tower stands vertical to the ground, that means it is making a right triangle with the shadow.

$\tan 65^{\circ}=\dfrac{x}{60}\\\\\Rightarrow\ 2.1445=\dfrac{x}{60}\ \ \text{[Using calculator]}\\\\\Rightarrow x= 2.1445\times60=128.67\approx129\text{ feet}$

Hence, the tower is 129 feet tall.

3 0

2 years ago

Solve the equation for x 1/3x - 15 = 12

Akimi4 [234]

X = 81
You are welcome

6 0

2 years ago

Read 2 more answers

Evaluate 2(x + 1) - 3 when x= 6.<br> A. 8<br> B. 5<br> c. 11<br> D. 10

Brrunno [24]

2(x+1) -3
2(6+1) -3
2(7) -3
14 -3
11

ANSWER IS:
C 11

6 0

2 years ago

Read 2 more answers