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Ugo [173]
3 years ago
13

What would be an equation for this?

Mathematics
1 answer:
horsena [70]3 years ago
3 0

Answer:

This is a system of equations, meaning there are two equations you will need to use. The first equation would be d + n = 35, where d = dimes and n = nickels. The second equation would be 10d + 5n = 250, since each dime is 10 cents and each nickel is 5 cents totaling at 250 cents. To solve for nickels, solve one equation for dimes and substitute the answer into the d in the other equation. If you need any more help with this one I am happy to help.

Step-by-step explanation:

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what is the area, in square inches, of the largest triangle that can fit into a 3-inch by 4-inch rectangle. please show how you
AnnyKZ [126]
The area of the largest triangle would be 6 inches².

How did I get this? I'll explain first:

We would want our triangle to have the longest sides, so it can be big. If you think of a rectangle, a triangle can fit into it if:

The base (bottom) of the triangle is the same length as one side of the rectangle, and the other side of the triangle is perpendicular (90°) to the bottom and is the same length of the other side of the rectangle.

Okay, just picture it: two sides of the triangle are resting in the two sides of the rectangle, and the third side of the triangle is a line that splits the rectangle in half from one corner to the other.

I've added an image to explain.

The formula to find the area of a triangle is half of the base × height.

A of Δ = half of 3 × 4
A = 1.5 × 4 = 6 inches²!

4 0
3 years ago
Please help me thank you so much i will give brainliest answer if you get it right
Setler79 [48]

Answer:

the first four

Step-by-step explanation:

The last two do not equal 9 or .90

7 0
2 years ago
Given that 3x – 4y= 22<br> -<br> Find &amp; when y = -7
Liono4ka [1.6K]
<h2>Answer:</h2>

x=2

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

<h2><em><u>3x - 4y = 22</u></em></h2><h3>3x - 4 × -7 = 22 </h3><h3>3x - (-28) = 22</h3><h3>223x + 28 = 22</h3><h3>223x = 28 - 22</h3><h3>223x = 6</h3><h3>x = 6/3</h3><h3><em><u>x = 2</u></em></h3>
6 0
2 years ago
Y = -2x + 13 when x = 6
elena-14-01-66 [18.8K]

Answer: 1

Work: After plugging in the 6 in the X, the new equation is -2(6) + 13. After doing the multiplication of -2 and 6, you get -12. Add -12 + 13, and the answer (Or y) equals 1.

<em>I hope this helps, and Happy Holidays! :)</em>

6 0
3 years ago
Read 2 more answers
The triangle below is isosceles (two congruent sides). Find the value for x. one side say x + 3.8 and the other says 16 and then
Ugo [173]
The <span>isosceles triangle has two congruent sides

Their lengths are (</span> x + 3.8 ) and  <span>16

Equate them :

x+3.8=16


Solve for x:
3=16-3.8=12.2
</span>
4 0
3 years ago
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