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3 years ago

Please answer URGENT

Mathematics

1 answer:

aliya0001 [1]3 years ago

8 0

The answer would be 90 because all you do is add the numbers ! (: pls mark me brainliest

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A train leaves at 14:56 and arrives at 16:43. It travelled at an average speed of 135 km/h. How far did it travel? Give your ans

Firlakuza [10]

Answer:

240.8

Step-by-step explanation:

→ Calculate time taken

16:43 - 14:56 = 1 hour and 47 minutes

→ Write the speed formula and make distance the subject

Speed = Distance ÷ Time ⇔ Distance = Speed × Time

→ Convert 1 hour and 47 minutes into decimal format

1.78333333 or $1\frac{47}{60}$

→ Substitute values into formula

135 × $1\frac{47}{60}$ = 240.75

8 0

3 years ago

3 1/4 times 7/8 simplified!!!

suter [353]

Answer:

2 27/32

Step-by-step explanation:

3 0

3 years ago

What is the answer to this question

zhannawk [14.2K]

Answer:

The square is 240 and the triangle is 40 which makes 280 in total

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

URGENT- I'll give 20 points

egoroff_w [7]

Answer:

i think its c

Step-by-step explanation:

so sorry if its wrong

3 0

3 years ago

We want to factor the following expression:

11Alexandr11 [23.1K]

Answer:

We have $\mathbf{U= 9x^3 \:and\:V=y+1}$

Step-by-step explanation:

We want to factor the expression $81x^6-(y+1)^2$ in the form of (U+V)(U-V)

We need to find U and V

We can use formula : $a^2-b^2=(a+b)(a-b)$

We can write $81x^6$ as $(9x^3)^2$

Now we have the expression:

$81x^6-(y+1)^2\\=(9x^3)^2-(y+1)^2$

Applying formula: $a^2-b^2=(a+b)(a-b)$

$=(9x^3+y+1)(9x^3-(y+1))\\=(9x^3+y+1)(9x^3-y-1)$

So, we have $\mathbf{U= 9x^3 \:and\:V=y+1}$

8 0

3 years ago