3 years ago

A tortoise is walking in the desert. It walks for

Mathematics

1 answer:

castortr0y [4]3 years ago

6 0

The tortoise took 122.5 meters per minutes to walk in the desserts.

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The 10th term of an a.p is -27 and the 5th term is -12 .find the first term?

horsena [70]

Step-by-step explanation:

$a_{10} = - 27... (Given) \\\\\therefore a + 9d = - 27...... (1)\\\\a_{5} = - 12... (Given) \\\\\therefore a + 4d = - 12.......(2)\\\\$

Subtracting equation (2) from equation (1)

$a + 9d-( a + 4d )= - 27-(-12)\\\\\therefore a +9d - a-4d = - 27+12\\\\\therefore 5d = - 15\\\\\therefore d = \frac {- 15}{5}\\\\\huge \orange {\boxed {\therefore d = -3}} \\\\$

Substituting d = - 3 in equation (1), we find:

$a + 9\times (-3)= - 27\\\\\therefore a - 27 = - 27\\\\\therefore a = 27- 27\\\\\huge \red {\boxed {\therefore a = 0}}\\\\$

Hence, first term is zero.

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3 years ago

Chris saved x dollars and spent half of his savings buying video games. After earning an additional $15 cutting grass, he had $5

olga55 [171]

Chris started with $70 in the savings account

What is the equation representing the scenario?

The equation representing the scenario painted in the question is: one half times x plus 15 equals 50

1/2*X+15=50

X/2+15=50

X/2=50-15

X/2=35

X=35*2

X=70

In short the amount Chris started with in the savings account is $70

Find out more about savings plan equation on:brainly.com/question/23630456

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1 year ago

32% of 300 is what number? A.96 B.64 C.32 D.90

svlad2 [7]

32% = 0.32

300 * 0.32 =96

Answer is A

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How are angle 4 and angle 5 related?

maxonik [38]

They are supplementary angles

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I am thinking of a number

valkas [14]

Answer:

1422

Step-by-step explanation:

calculated sooo yerp

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