Please help :-( thanks

Mathematics

1 answer:

NISA [10]3 years ago

5 0

The shaded part is four little blocks, and its area is ' 1 '.
So the area of each little block is 1/4 .

The part with crosses covers two little blocks.
So its area is (2 x 1/4) = 1/2 .

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Need help on all of them lol even if u can do one or a few, can someone plz help? #3-14

valina [46]

Just times them and you will have the volume

8 0

3 years ago

Help guys pleaseeeee

kkurt [141]

<h2>Answers:</h2>

Exercise 34.

$4t+72\geq 400$ and $t\leq82$ .

Exercise 35.

$30t-4$ .

<h2>Step-by-step explanation:</h2>

<h2><u>Exercise 34.</u></h2>

1. Forming the inequality.

Let's make the left side be a calculation of the total earning based on the number of tickets sols. Also, let's make the right side the cost of the dance to compare and find an adecuate minimum value of x.

$4t+72\geq 400$ .

<em>We use the </em><em>"greater or equal to"</em><em> symbol because the side of x expresses the earning of the committee, and these earnings will have to be equal or greater than the cost of the dance to be able to organize the dance.</em>

2. Solving the inequality.

$4t+72\geq 400\\ \\4t\geq 400-72\\ \\4t\geq 328\\ \\t\geq\frac{328}{4} \\ \\t\geq82$