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3 years ago

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There are 26 students in tour class. There are 4 more girls than boys. Use a system of linear equations to find how many boys ar

e in your class. How many girls are in your class?

1 answer:

puteri [66]3 years ago

5 0

<h3>Answer: B+B+4=26 2B=22 B=11 So then, G=11+4 G=15 Step-by-step explanation: </h3>

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so if i have 2 brands of fruit snacks and one of them costs 48.60 and the other brand is 40.15 which brand cost less per pound

Lynna [10]

Answer: 40.15

Step-by-step explanation: 40.15 IS LESS THEN 48.60

4 0

2 years ago

Describe, in words, the solution set for the following equation.<br><br> 3x+3=3+3x

juin [17]

Answer:

Infinite Answers

Step-by-step explanation:

You subtract 3x from both side which leaves you with 3=3, which leaves you to conclude there are infinite answers to this equation.

5 0

2 years ago

Find the measure of angle Y

Musya8 [376]

Answer:

∠y=60°

Step-by-step explanation:

Question says to find the measure of the angle Y.

We have been given a picture of triangle XYZ. All angles are marked with same sign so that indicates that all three angles are equal.

∠x = ∠y = ∠z...(i)

We know that sum of all three angles of the triangle is always 180°.

So we can write:

∠x+∠y+∠z=180°

∠y+∠y+∠y=180° {using equation (i) }

3∠y=180°

divide both side by 3

∠y=60°

Hence final answer is the measure of angle y is 60 degree.

8 0

3 years ago

Perimeter of a triangle is 32, sides are x+3, 3x-1 and 4x-2

ZanzabumX [31]

X= 4
AB= 7
BC= 11
AC= 14

6 0

2 years ago

What is the perimeter of the trapezoid with vertices Q(8, 8), R(14, 16), S(20, 16), and T(22, 8)? Round to the nearest hundredth

EleoNora [17]

Check the picture below.

so... you can pretty much see how long RS and QT are, you can just count the units off the grid.

now, let's find QR's length

$\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&Q&(~ 8 &,& 8~) 
% (c,d)
&R&(~ 14 &,& 16~)
\end{array}~~ 
% distance value
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
QR=\sqrt{(14-8)^2+(16-8)^2}\implies QR=\sqrt{6^2+8^2}
\\\\\\
QR=\sqrt{36+64}\implies QR=\sqrt{100}\implies QR=10$

and let's also find the length for ST

$\bf ~~~~~~~~~~~~\textit{distance between 2 points}\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&S&(~ 20 &,& 16~) 
% (c,d)
&T&(~ 22 &,& 8~)
\end{array}~ 
d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2}
\\\\\\
ST=\sqrt{(22-20)^2+(8-16)^2}\implies ST=\sqrt{2^2+(-8)^2}
\\\\\\
ST=\sqrt{4+64}\implies ST=\sqrt{68}\implies ST=\sqrt{4\cdot 17}
\\\\\\
ST=\sqrt{2^2\cdot 17}\implies ST=2\sqrt{17}$

so, add the lengths of all sides, and that's the perimeter of the trapezoid.

8 0

3 years ago

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