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GenaCL600 [577]
2 years ago
13

QUESTION :-

Mathematics
2 answers:
Georgia [21]2 years ago
5 0

15 - 3 + 10 × 5 ÷ 5 = ? Hence, 48 is the correct answer.

By inserting codes and then using BODMAS Rule:

15 × 3 - 10 ÷ 5 + 5

15 x 3 = 45. Now 10 divided by 5 is 2 and keep the other 5 so:

= 45 - 2 + 5 = 48

I HOPE THIS HELPED YOU.

DanielleElmas [232]2 years ago
5 0

You are playing a math game, right?

Well anyways, I will solve this for you!!

Let's see the symbols clearly then we will solve

  • + = -
  • - = ×
  • ÷ = +
  • × = ÷

<u>Now,</u><u> </u><u>Substitute</u><u> </u><u>the</u><u> </u><u>symbols</u><u> </u><u>in</u><u> </u><u>the</u><u> </u><u>original</u><u> </u><u>expression</u>

<u>Original</u><u> </u><u>expre</u><u>s</u><u>sion</u><u>:</u>

\sf \: 15 - 3 + 10 \times 5 \div 5

<u>New</u><u> </u><u>expression</u><u>:</u>

<u>\tt \: 15 \times 3 - 10 \div 5 + 5</u>

  • <em>Solution</em><em> </em><em>for</em><em> </em><em>the</em><em> </em><em>equation</em><em> </em><em>;</em>

\bf \: 15 \times 3 - 2 + 5

\bf \: 45 - 2 + 5

\bf  \underline{ \underline {48}}

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Use pascal's triangle to expand the following binomial expression <br>1.(2k-1/3)⁶​
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Answer:

  64k^6 -64k^5 +(80/3)k^4 -(160/27)k^3 +(20/27)k^2 -(4/81)k +1/729

Step-by-step explanation:

The row of Pascal's triangle we need for a 6th power expansion is ...

  1, 6, 15, 20, 15, 6, 1

These are the coefficients of the products (a^(n-k))(b^k) in the expansion of (a+b)^n as k ranges from 0 to n.

Your expansion is ...

  1(2k)^6(-1/3)^0 +6(2k)^5(-1/3)^1 +15(2k)^4(-1/3)^2 +20(2k)^3(-1/3)^3 +...

     15(2k)^2(-1/3)^4 +6(2k)^1(-1/3)^5 +1(2k)^0(-1/3)^6

  = 64k^6 -64k^5 +(80/3)k^4 -(160/27)k^3 +(20/27)k^2 -(4/81)k +1/729

7 0
2 years ago
What is 4/8 in lowest terms
Reil [10]

Answer:

1/2

Step-by-step explanation:

4/8 divided by 2 on numerator and denominator=

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2/4 divided by 2 on numerator and denominator=

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8 0
3 years ago
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fredd [130]
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Is probably the correct answer
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3 years ago
I need help ASAP! It's urgent.. PLISSSSS​
natali 33 [55]

Answer:

a) 6 mins

b) 70km/h

c) t= 45

Step-by-step explanation:

a) The bus stops from t=10 to t=16 minutes since the distance the busvtravelled remained constant at 15km

Duration

= 16 -10

= 6 minutes

b) Average speed

= total distance ÷ total time

Total time

= 24min

= (24÷60) hr

= 0.4 h

Average speed

= 28 ÷0.4

= 70 km/h

c) Average speed= total distance/ total time

Average speed

= 80km/h

= (80÷60) km/min

= 1⅓ km/min

1⅓= 28 ÷(t -24)

<em>since</em><em> </em><em>duration</em><em> </em><em>for</em><em> </em><em>return</em><em> </em><em>journey</em><em> </em><em>is</em><em> </em><em>from</em><em> </em><em>t</em><em>=</em><em>2</em><em>4</em><em> </em><em>mins</em><em> </em><em>to</em><em> </em><em>t</em><em> </em><em>mins</em><em>.</em>

\frac{4}{3}(t -24)= 28

\frac{4}{3}t - 32= 28

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\frac{4}{3}t= 60

t= 6 0\div  \frac{4}{3}

t= 45

*Here, I assume that this is a displacement- time graph, so the distance shown is the distance of the bus from the starting point because technically if it is a distance-time graph, the distance would still increase as the bus travels the 'return journey'.

Thus, distance is decreasing after t=24 and reaches zero at time= t mins so that is the return journey. (because when the bus returns back to starting point, displacement/ distance from starting point= 0km)

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Mice21 [21]

Answer:

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Step-by-step explanation:

60-1=59

3 0
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