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3 years ago

Find the solution of 4t - 2 = 9

Mathematics

2 answers:

Citrus2011 [14]3 years ago

7 0

Answer:

t = 11/4

Step-by-step explanation:

Step 1: Write out equation

4t - 2 = 9

Step 2: Add 2 on both sides

4t = 11

Step 3: Divide both sides by 4

t = 11/4

Inga [223]3 years ago

5 0

Answer:

$t = 2\frac{3}{4} \\\\t = 11/4$

Step-by-step explanation:

$4t -2 =9$

Collect like terms and simplify

$4t=9+2\\\\4t =11$

Divide both sides of the equation by 4

$\frac{4t}{4} = \frac{11}{4} \\\\t = \frac{11}{4} \\\\11\div 4 =2 \:remainder\: 3\\\\= 2\frac{3}{4}$

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Mary takes a sightseeing tour on a helicopter that can fly 450 miles against a 35 mph headwind. In the same amount of time it ca

monitta

Answer:

V = 160mph

Step-by-step explanation:

We need to start from the formula of speed: V=d/t

We have two travels, with and against the wind, both done in the same time.

Clearing t from the formula, we will have: t=d/V2

450miles/V-35mph (speed of the wind is subtracted)

702miles/V+35mph (speed of the wind is subtracted)

Now, we find V:

450miles/V-35mph = 702miles/V+35

450*V+35 = 702*V-35

450V+15,750 = 702V-24,570

702V-450V = 15,750 + 24,570

252V = 40,320

V = 40,320/252

V = 160mph

5 0

4 years ago

Which method can you use to prove these triangles congruent?

Allisa [31]

Answer:

where are the triangles

6 0

3 years ago

(This is due by 11:59...I posted it a while ago but no reply)

Trava [24]

The kite is directly 35.707 yards high above Erika

Step-by-step explanation:

Given scenario forms a right triangle where the length of string is the hypotenuse and the distance between Mary and Erika is the base.

$H = 50\ yards\\B = 35\ yards$

We have to find the perpendicular

Using pythagoras theorem,

$H^2 = B^2 + P^2$

Putting the values

$(50)^2 = (35)^2 + P^2\\2500 = 1225 + P^2\\P^2 = 1275\\$

Taking square root on both sides

$\sqrt{P^2} = \sqrt{1275}\\P= 35.707$

Hence,

The kite is directly 35.707 yards high above Erika

Keywords: Triangle, Pythagoras

Learn more about triangles at:

#LearnwithBrainly

8 0

3 years ago

Exponent of 9540000 using power of 10

xenn [34]

Are you doing scientific notation or expanded form?
Scientific notation:
9.54×10^6
Expanded Form:
9×10^6+5×10^5+4×10^4

5 0

3 years ago

4(v+6)-7v <br> Please Help............

baherus [9]

It should be -3v+24 :)

4 0

3 years ago