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3 years ago

Subtract. 99.28 8.87

Mathematics

2 answers:

Kipish [7]3 years ago

6 0

99.28 - 8.87 = 90.41

Yuliya22 [10]3 years ago

5 0

99.28 - 8.87 = 90.41

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2(x+4)= -5x+1<br> Some one please solve

NeX [460]

Let's solve your equation step-by-step.

2(x+4)=−5x+1

Step 1: Simplify both sides of the equation.

2(x+4)=−5x+1

(2)(x)+(2)(4)=−5x+1(Distribute)

2x+8=−5x+1

Step 2: Add 5x to both sides.

2x+8+5x=−5x+1+5x

7x+8=1

Step 3: Subtract 8 from both sides.

7x+8−8=1−8

7x=−7

Step 4: Divide both sides by 7.

−7

x=−1

Answer:

x=−1

7 0

3 years ago

It took 3.5 hours for an airplane traveling at a constant speed of 550 miles per hour to reach its destination. What distance di

Nata [24]

The formula that we want to use here is S = D/T.

S = Speed
D = Distance
T = Time

So, we know that S = 550 and T = 3.5, so we can plug them in.

We get 550 = D/3.5
Multiply by 3.5 on each side, and you figure out that the plane has traveled 1925 miles.

7 0

3 years ago

Please help! I will give Brainliest!<br> Who is correct?

wlad13 [49]

Answer:

Felicia is correct

Step-by-step explanation:

There are 180 degrees in a triangle

48.3 + 33.6 = 81.9

subtract 81.9 from 180 to get the measure of the last angle

180 - 81.9= 98.1

meaning Felicia is correct

4 0

3 years ago

You are riding along a straight river from east to the west at speed of 160m/m. At a given time, you will see the bearing of a c

yuradex [85]

Using the given information, the width of the river is 505.96 m

<h3>Bearing and Distances</h3>

From the question, we are to determine the width of the river

Consider the given diagram,

Let F be the first position of the biker

S be the second position

and C be the position of the church

First, we will determine the distance covered from F to S

Speed = 160m/min

Time = 4 minutes

Using the formula,

Distance = Speed × Time

Distance covered = 160 × 4

Distance covered = 640 m

That is, /FS/ = 640 m

Now, consider ΔFSC

∠F = 90° - 70° = 20°

∠S = 90° + 56° = 146°

and ∠C = 180° - 20° - 146° = 14°

By the Law of Sines

$\frac{/FC/}{sin\ S}= \frac{/FS/}{sin\ C}$

∴ $\frac{/FC/}{sin\ 146^\circ}= \frac{640}{sin\ 14^\circ}$

$/FC/ =\frac{640 \times sin \ 146^\circ}{sin \ 14^\circ}$

/FC/ = 1479.33 m

Now,

By SOH CAH TOA

$cos \ 70^\circ = \frac{d}{/FC/}$

NOTE: d is the width of the river

∴ d = /FC/ × cos70°

d = 1479.33 × cos70°

d = 505.96 m

Hence, the width of the river is 505.96 m

Learn more on Bearing and distances here: brainly.com/question/19351991

#SPJ1

7 0

2 years ago

A airplane travels 600 kilometers in 2.5 hours.What is the speed of the plane?

Vitek1552 [10]

Answer:

To solve this one, simply use the equation (600/2.5)=(x/1)

then solve for x. that will give you the speed in kilometers per hour

7 0

4 years ago

Subtract. 99.28 8.87​

Subtract. 99.28 8.87