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2 years ago

A lorry drives for 4 hours at a speed of 45 mph. Calculate how far it travles

Mathematics

2 answers:

Delvig [45]2 years ago

6 0

Answer:

180 miles

Step-by-step explanation:

Distance = speed x time

45 x 4 =180miles

Leona [35]2 years ago

4 0

Distance = 180
distance = speed x time
distance = 4 x 45

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Answer please<br>.........

Anna007 [38]

Hey there!

The perimeter of the floor plan is 30 inches.

Perimeter is length + length + width + width, so we can do 9 + 9 + 6 + 6 = 30

The area of the floor plan is 54 inches²

Area is length x width, so we can do 9 x 6 = 54

The perimeter of the actual size is 105 feet

First, we can solve the dimensions for the actual size. We know that 2 inches = 7 feet, so we can do 7/2 and get 3.5. This means that for every 1 inch, it's 3.5 feet. Then, we multiply the dimensions by 3.5:

9 x 3.5 = 31.5 feet

6 x 3.5 = 21 feet

Then we solve for perimeter. Perimeter is length + length + width + width, so we can do 31.5 + 31.5 + 21 + 21 = 105

The area of the actual size is 661.5 inches²

Area is length x width, so we can do 31.5 x 21 = 661.5

Hope this helps! Tell me if you need more help.

8 0

3 years ago

Can you guys please help me or explain to me how to do this ?

ira [324]

12) Angle ACD= Angle ABC+ Angle CAB ====> You MAY end here
That is, Angle ACD= 132+21
            Angle ACD= 153

13) Angle ABC+ Angle BAC= Angle ACD====> You MAY end here
That is,     Angle ABC +16=143
                                   -16= -16
                Angle ABC=127

7 0

3 years ago

Ronald spins a spinner that is numbered 1 to 10. What is the probability that the spinner will land on an odd number?

vekshin1

The odds ot landing on an odd or an even number are the same. So the probability of landing on an odd number is 50%.

6 0

3 years ago

Read 2 more answers

WILL MARK BRAINLEIST PLEASE HURRY

Marina86 [1]

Answer:

<h3>The reason which is incorrect is in Step 2 and reason 2</h3>

Step-by-step explanation:

Given that Logan's equation is $\frac{3}{2}\times (x-10)=50$

<h3>To simplify and find the which reason is incorrect :</h3>

Logan's solution and reasoning for solving an equation are shown below:

Step1 $\frac{3}{2}\times (x-10)=50$

Reason 1: Given

Step2 $\frac{3}{2}\times x-10+10=50+10$

Reason 2: Addition Property of Equality

Step3 $\frac{3}{2}\times x=60$

Reason 3: Simplify

Step4 $\frac{3}{2}\times x \times (\frac{2}{3})=60\times (\frac{2}{3})$

Reason 4: Division Property of Equality

Step5 $x=40$

Reason 5: Simplify

<h3>The reason which is incorrect is in Step 2 and reason 2</h3><h3>The corrected steps are</h3>

Step1 $\frac{3}{2}\times (x-10)=50$

Reason 1: Given

Step2 $\frac{3}{2}\times (x)-\frac{3}{2}\times (10)=50$

Reason 2: Distributive property

Step3 $\frac{3}{2}\times x-15=60$

Reason 3: Simplify

Step4 $\frac{3}{2}\times x-15+15=50+15$

Reason 4: Addition Property of Equality

Step5 $\frac{3}{2}\times x=65$

Reason 5: Simplify

Step6 $\frac{3}{2}\times x \times (\frac{2}{3})=65\times (\frac{2}{3})$

Reason 6: Division Property of Equality

Step7 $x=\frac{130}{3}$

Reason 7: Simplify

<h3 />

5 0

3 years ago

A coin is weighted so that the probability of obtaining a head in a single toss is 0.3. If the coin is tossed 35 times, what is

Vlada [557]

Answer:

(1) The correct answer is option (a) 0.510

(2) The correct answer is option (b) = 0.9664

(3) The correct answer is option (a) 0.8665

Step-by-step explanation:

1. Find attached of question 1

n= 850

p= 0.1400

here mean of distribution(μ) =n*p

=850* 0.1400

= 119

standard deviation σ = √(np(1-p))

= √(850*0.1400(1-0.1400))

= √102.34

=10.1163

for normal distribution z score =(X-μ)/σx

therefore from normal approximation of binomial distribution and continuity correction:

probability = P(X>100.5)

= P(Z>-1.83)

= 1-P(Z<-1.83)

= 1-0.0336

= 0.9664

n = 1000

p = 0.08

mean of distribution(μ) =np

= 1000*0.08

= 80

and standard deviation σ=√(np(1-p))

= √(1000*0.08(1-0.08))

= √736

= 8.5790

probability = P(X>70.5)

= P(Z>-1.11)

= 1-P(Z<-1.11)

= 1-0.1335

= 0.8665

8 0

2 years ago