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2 years ago

A car travels 41 km in 31 minutes.

Mathematics

2 answers:

Oksi-84 [34.3K]2 years ago

6 0

Answer:

79.4KM/HR

Step-by-step explanation:

S=D/T

S=41km/31 min 31/60

S=79.4 KM/HR

My name is Ann [436]2 years ago

5 0

Answer: 1.30 every km

Step-by-step explanation:

to find the speed per km, you do 41 divided by 31.

41/31= 1.30 per km (rounded)

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Corgurent or supplementary

nataly862011 [7]

Answer:

Congruent:

B, E, F, G

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Step-by-step explanation:

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2 years ago

The base of the triangle decreases by 30% and the height increases by 20%.

sergeinik [125]

Answer:

Area decreases by 16%

Step-by-step explanation:

Use formula for the area of the triangle

$A=\dfrac{1}{2}\cdot \text{Base}\cdot \text{Height}$

<u>Initial triangle:</u>

The base is 18 cm

The height is 5 cm

The area is

$A_{initial}=\dfrac{1}{2}\cdot 18\cdot 5=45\ cm^2$

<u>New triangle:</u>

The base is $(1-0.3)\cdot 18=0.7\cdot 18=12.6\ cm$

The height is $(1+0.2)\cdot 5=1.2\cdot 5=6\ cm$

The area is

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Area decreases by

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2 years ago

what is the error? at 9am the temperature was -4 degress forienhieght by the noon the tempereture was -12 degress forienhight a

Cloud [144]

if it were getting warmer, the negative number would get closer to 0, not farther away.

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2 years ago

How does algebra affect how people can learn from each other?

pantera1 [17]

Algebra is Faster And Better Than “Basic” Math

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2 years ago

Simplify.

yKpoI14uk [10]

$(-5p^4z^6u)^3$

$= (-5)^3p^{4 \times 3}z^{6 \times 3} u^3$

$= -125p^{12}z^{18} u^3$

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$\text {Answer = } -125p^{12}z^{18} u^3 \text { (Answer C) }$
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3 0

2 years ago

Read 2 more answers