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3 years ago

Name three real life situations in which you would use a positive number

1 answer:

5 0

Hello.

Describing to someone your height; It would be nonsense telling you have -1 meter, for example.

Describing your age; An age of -3 years is meaningless.

Counting the number of inhabitants in a city. Again, a city with -3000 inhabitants can not exist.

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Nuts.com sells raw almonds for $10 per pound and roasted pistachios for $12 per pound. Christopher spends $70, before taxes and

sp2606 [1]

Christopher purchased 2.8 pounds of almonds and 3.5 pounds to roasted pistachios.

Step-by-step explanation:

Cost of almonds per pound = $10

Cost of roasted pistachios = $12

Total amount spent = $70

Weight of nuts = 6.3

Let,

Weight of almonds = x

Weight of roasted pistachios = y

According to given statement;

x+y=6.3 Eqn 1

10x+12y=70 Eqn 2

Multiplying Eqn 1 by 10

$10(x+y=6.3)\\10+10y=63\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2;

$(10x+12y)-(10x+10y)=70-63\\10x+12y-10x-10y=7\\2y=7$

Dividing both sides by 2

$\frac{2y}{2}=\frac{7}{2}\\y=3.5$

Putting y=3.5 in Eqn 1

$x+3.5=6.3\\x=6.3-3.5\\x=2.8$

Christopher purchased 2.8 pounds of almonds and 3.5 pounds to roasted pistachios.

Keywords: linear equations, elimination method

Learn more about elimination method at:

#LearnwithBrainly

8 0

3 years ago

Which of the following transformations will not always result in a congruent image?

Scorpion4ik [409]

Answer:

Step by step

A) Dilation

6 0

3 years ago

Which situation could be solved using this expression? 2k – 3 A. Tamara made three times as many free throws as Marla. Marla mad

ddd [48]

The correct answer is B.

3 0

3 years ago

Read 2 more answers

A triangle has side lengths of 39in, 40 in, and 58 in. Classify it as acute, obtuse, or right.

S_A_V [24]

The triangle is acute

7 0

3 years ago

triangle has sides measuring 2 inches and 7 inches If x represents the length in inches of the third side which inequality gives

il63 [147K]

We know that
The sum of the lengths of any two sides of a triangle is greater than the length of the third side (Triangle Inequality Theorem)
so
inequality 1
 $(2+7) \ \textgreater \ x \\ 9 \ \textgreater \ x \\ x \ \textless \ 9 in$

inequality 2
 $(x+2) \ \textgreater \ 7 \\ x \ \textgreater \ 7-2 \\ x \ \textgreater \ 5 in$

the answer is
 $5 in \ \textless \ x \ \textless \ 9 in$

6 0

3 years ago