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2 years ago

Rebecca trains for a marathon. She runs 6.8 miles in 34 minutes. Determine the

1 answer:

7 0

pretty sure it’s just 6.8 / 34. that’s 0.2, which is how much rebecca covers a minute

multiply 0.2 by the ten minutes you want to count, which is 2

therefore , rebecca covered 2 miles in 10 minutes :)

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I need help w/ this!! thank you

Fittoniya [83]

<h3>Answer:</h3>

$\boxed{\pink{\sf \leadsto Yes \ there \ is \ a \ solution \ of \ the \ given \ inequality .}}$

<h3>Step-by-step explanation:</h3>

A inequality is given to us and we need to convert it into standard form and see whether if it has a solution . So let's solve the inequality.

The inequality given to us is :-

$\bf\implies |2y + 3 | - 1 \leq 0 \\\\\bf\implies |2y+3|\leq 1 \\\\\bf\implies (|2y+3|)^2 \leq 1^2 \\\\\bf\implies (2y+3)^2 \leq 1 \\\\\bf\implies (2y)^2+3^2+2(2y)(3) \leq 1 \\\\\bf\implies 4y^2+9+12y - 1 \leq 0 \\\\\bf\implies 4y^2+12y+8 \leq 0 \\\\\bf\implies 4( y^2 + 3y + 2 ) \leq 0 \\\\\bf\implies y^2+3y +2 \leq 0 \:\:\bigg\lgroup \purple{\bf Standard \ form \ of \ inequality }\bigg\rgroup \\\\\bf\implies y^2y+2y+y+2 \leq 0 \\\\\bf\implies y(y+2)+1(y+2)\leq 0 \\\\\bf\implies ( y+2)(y+1)\leq 0 \\\\\bf\implies \boxed{\red{\bf y \leq (-2) , (-1) }}$

Let's plot a graph to see its interval . Graph attached in attachment .

Now we can see that the Interval notation of would be ,

$\boxed{\boxed{\orange \tt \purple{\leadsto}y \in [-2,-1] }}$

<h3>Hence the standard form of inequality is y²+3y +2 ≤ 0 and the Solution set of the inequality is [ -2 , -1 ] .</h3>

4 0

2 years ago

what is the answer to this The sixth grade teachers ordered 54 bags of candy to be split among 12 students. How many bags of can

nadya68 [22]

Answer:

The answer is 4.5 and 9/2

Step-by-step explanation:

First

54 / 12 = 4.5

Then

Change it into a fraction

Write is fraction form 4.5 / 1

Multiply both numerator and denominator by 10 for every number after the decimal point

4.5 × 10

1 × 10

Which will equal 45/10

Then Reduce the fraction gives 9/2

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2 years ago

Evaluate the expression 2 + 23 × 5 - 3

insens350 [35]

Answer: 2+23x5-3

= 2 + 115 -3

= 117 - 3

= 114

6 0

3 years ago

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shusha [124]

Answer:

Step-by-step explanation:

Each hash mark between "School" and "Declan's house" is one-eighth of a mile. Starting at "School" count 5 hash marks to the left to get where Harper lives.

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11 months ago

The point-slope form of the equation of the line that passes through (-4, -3) and (12, 1) is y-1 (x-12) What is the standa the e

katrin [286]

Answer:

The equation would be -x + 4y = -8

Step-by-step explanation:

To find the standard form of the line, solve for the constant.

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3 years ago

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