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Mathematics

1 answer:

Artist 52 [7]3 years ago

3 0

cuál de los siguientes documentos es más Útil para construir carretera

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Graph the function y=2x+3

stealth61 [152]

I will show how to do it:

Step 1: Start your point at 3 in the y axis (line going upwards)

Step 2: Move up twice.

Step 3: Now go to the right once.

Step 4: Use a ruler to draw the line.

Step 5: Cross check by picking two points that are on the line. Or use the formula - y2 - y1 / x2 - x1

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3 years ago

Amelia wanted to save up to purchase a bicycle that she had been wanting for a while . She made two transactions at the bank in

stira [4]

And she d65 snaps down w Anna’s x a and.

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3 years ago

helena needs 3.5 cups of flour per loaf of bread and 2.5 cups of flour per batch of muffins. she also needs 0.75 cup of sugar pe

tatuchka [14]

The <em><u>correct answer</u></em> is:

She can make 2 loaves of bread and 4 batches of muffins.

Explanation:

Let b represent bread and m represent muffins.

The equation for the amount of flour she needs is 3.5b+2.5m=17.

The equation for the amount of sugar she needs is 0.75b+0.75m=4.5.

To solve this, we will want to eliminate one of the variables. To do this, we will make the coefficients of one of the variables the same. If we multiply 2.5 by 0.3, we get 0.75; this is what we will do to the first equation:

$\left \{ {{0.3(3.5b+2.5m=17)} \atop {0.75b+0.75m=4.5}} \right. \\ \\\left \{ {{1.05b+0.75m=17} \atop {-(0.75b+0.75m=4.5)}} \right. \\ \\0.3b=0.6 \\ \\\frac{0.3b}{0.3}=\frac{0.6}{0.3} \\ \\b=2$