All categories

3 years ago

Solve the equation 28 = 7 3x for x: a. 1 b. 3 c. 5 d. 7

Mathematics

1 answer:

yaroslaw [1]3 years ago

8 0

I think you meant 28=7+3x. Subtract 7 from both sides to get 21=3x, then divide by three to get D. 7

:)

You might be interested in

Which type of study best describes the following research most likely to be done? A study is being conducted by an insurance act

balu736 [363]

B sounds like the best one to me

5 0

3 years ago

Read 2 more answers

Find 83 1/3 % of 384 Also, side info the answer is not 319.872

neonofarm [45]

Answer:

320

Step-by-step explanation:

First, convert the percent into a fraction.

250/3*100 = 250/300 = 5/6

5/6 of 384 is 5 * 64 = 320

5 0

3 years ago

Read 2 more answers

Laura tiene una tarifa de telefono la que paga solo por un tiempo que dura cada llamada si un minuto cuesta 0,08 y su ultima lla

EleoNora [17]

Answer:

0,252

Step-by-step explanation:

De la pregunta,

1 minuto = 0.08

3,15 minutos = x

Cruz multiplicar

x = 3,15 × 0,08

x = 0,252

Por tanto, por su última llamada que duró 3,15 minutos, Laura estaría pagando 0,252

4 0

3 years ago

Suppose that NOP is isosceles with base.

NemiM [27]

Step-by-step explanation:

In isocseles triangle, base angles are equal :

base angles are angle N and angle P:

angle N=angle P

3x+17=4x+2

4x-3x=17-2

x=15

For angle N:

subtitute x in angle N

=3(15)+17

=45+17

=62

For angle P:

subtitute x in angle P:

=4(15)+2

=60+2

=62

For angle O:

sum of all angles in a triangle is 180.

angle N +angle P+angle O=180

62+62+angle O=180

angle O=180-62-62

angle O=56

Note: if you have any question let me know about it. thanks

4 0

3 years ago

water main construction a water main is to be constructed with a 20% grade in the north direction and a 10% grade in the east di

ArbitrLikvidat [17]

The value of the angle θ required in the water main for the turn from north to east is 87.40°.

According to the statement

We have to find that the value of the angle.

So, For this purpose, we know that the

An angle is created when two straight lines or rays meet at a standard endpoint.

From the given information:

a main is to be constructed with a 20% grade within the north direction and a tenth grade within the east direction.

Then

Let n = North

and e = east

Then

using vectors,

n = j + 0.20 k

e = i + 0.25 k

And the

n · e = 1x0 + 0x1 + 0.20×0.25 = 0.05

Now take magnitude then

|n|·|e| = i(1² + 0.20²)·i(1²+0.25²) = 1.105

Now,

E° = arccos((n · e)/|n|·|e|)

E° = arccos(0.05/1.105)

E° = arccos (0.0452)

E° = 87.40°

So, The value of the angle θ required in the water main for the turn from north to east is 87.40°.

Learn more about angle here

brainly.com/question/24368895

#SPJ4

8 0

1 year ago