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2 years ago

PLSSS HELP IF YOU TURLY KNOW THISS

Mathematics

2 answers:

nata0808 [166]2 years ago

7 0

Answer:

$\frac{0.2x + 1}{7} = 0.4 \\ 0.2x + 1 =0.4 \times 7 \\ 0.2x + 1 = 2.8 \\ 0.2x = 2.8 - 1 \\ 0.2x = 1.8 \\ x = \frac{1.8}{0.2} \\ \boxed{x = 9}$

<u>x</u><u> </u><u>= 9</u> is the right answer.

emmainna [20.7K]2 years ago

6 0

Answer:

Step-by-step explanation:

0.2x+1/7=0.4

multiply 7 on both sides.

you get….

0.2x+1=2.8

Minus 1 on both sides.

0.2x= 1.8

divide .2 on both sides

x=9!

I hope you get it!!

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Need help asap!!!!!!!!!!!!!!!!!

ValentinkaMS [17]

Answer:

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7 0

3 years ago

A BMW that cost $71,000 in 2003 depreciates in value about 15% a year. How much was it worth in 2013?

N76 [4]

100-15= 85%

2013-2003= 10 years

$71,000 * (0.85^10yrs)= $13,978<span>.</span>08

Did this make sense or would you like me to explain some more about something you are still not understanding? Please comment below :)

6 0

3 years ago

How do I solve this problem

mestny [16]

Because you are solving to find the total amount and you were given that the tax is 8% you’d do $999 times 0.08 and you’d get $79.92 and then you’d add $79.92 to $999 to find the total amount charge to his card and you’d get $1078.92

3 0

3 years ago

What percent of 8 is 14

seraphim [82]

Answer:

57.14

Step-by-step explanation:

8/14 =x/100

cross multiply

800= 14x

x=57.1428

7 0

3 years ago

Read 2 more answers

Lostsunrise [7]

Using the law of sines, it is found that the distance between the kite and the dog is of 284.77 meters.

<h3>What is the law of sines?</h3>

Suppose we have a triangle in which:

The length of the side opposite to angle A is a.

The length of the side opposite to angle B is b.

The length of the side opposite to angle C is c.

The lengths and the sine of the angles are related as follows:

$\frac{\sin{A}}{a} = \frac{\sin{B}}{b} = \frac{\sin{C}}{c}$

For the situation described, we have that:

The height is opposite to the angle of 42º.

The 425 meters are opposite to the angle of 87º.

Hence:

$\frac{\sin{42^\circ}}{h} = \frac{\sin{87^\circ}}{425}$

Applying cross multiplication:

$h = 425\frac{\sin{42^\circ}}{\sin{87^\circ}}$

h = 284.77 meters.

More can be learned about the law of sines at brainly.com/question/25535771

#SPJ1

3 0

2 years ago