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3 years ago

63 plus what gives you 83

Mathematics

1 answer:

iVinArrow [24]3 years ago

5 0

83-63=20
So your answer is 20

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(Question 1) Which mathematical property is shown by the statement?

kenny6666 [7]

Answer:

1. symmetric property

2. associative property of multiplication

3. The set is closed under addition and not closed under subtraction

Step-by-step explanation:

5 0

4 years ago

Find the perimeter of a trapezoid with sides that measure 13.1 inches, 5.8 inches, 5.4 inches and 16 inches.

Zigmanuir [339]

A trapezoid has 4 sides. You have everything you need, just add them together. The perimeter of this trapezoid is 40.3 inches or 3.358 feet.

6 0

3 years ago

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How many Solutions does this system have? (1 point)

mixas84 [53]

The given system of equation that is $2x+y=3$ and $6x=9-3y$ has infinite number of solutions.

Option -C.

<u>Solution:</u>

Need to determine number of solution given system of equation has.

$\begin{array}{l}{2 x+y=3} \\\\ {6 x=9-3 y}\end{array}$

Let us first bring the equation in standard form for comparison

$\begin{array}{l}{2 x+y-3=0} \\\\ {6 x+3 y-9=0}\end{array}$

$\frac{a_{1}}{a_{2}}=\frac{b_{1}}{b_{2}} \neq \frac{c_{1}}{c_{2}}$

To check how many solutions are there for system of equations $a_{1} x+b_{1} y+c_{1}=0 \text{ and }a_{2} x+b_{2} y+c_{2}=0$ , we need to compare ratios of $\frac{a_{1}}{a_{2}}, \frac{b_{1}}{b_{2}} \text { and } \frac{c_{1}}{c_{2}}$

In our case,

$a_{1} = 2, b_{1}= 1\text{ and }c_{1}= -3$

$a_{2} = 6, b_{2} = 3,\text{ and }c_{2} = -9$

$\begin{array}{l}{\Rightarrow \frac{a_{1}}{a_{2}}=\frac{2}{6}=\frac{1}{3}} \\\\ {\Rightarrow \frac{b_{1}}{b_{2}}=\frac{1}{3}} \\\\ {\Rightarrow \frac{c_{1}}{c_{2}}=\frac{-3}{-9}=\frac{1}{3}} \\\\ {\Rightarrow \frac{a_{1}}{a_{2}}=\frac{b_{1}}{b_{2}}=\frac{c_{1}}{c_{2}}=\frac{1}{3}}\end{array}$

As $\frac{a_{1}}{a_{2}}=\frac{b_{1}}{b_{2}}=\frac{c_{1}}{c_{2}}$ , so given system of equations have infinite number of solutions.

Hence, we can conclude that system has infinite number of solutions.

5 0

3 years ago

there are 56 students going to the game. the coach puts 7 students in each van. which number sentence can be used to find out ho

DENIUS [597]

Given:
students going to the game = 56
students in each van = 7
number of vans used = unknown; x

The number sentence that can be used to find out how many vans are needed to take the students to the game is:

7 * x = 56

x = 56/7
x = 8 vans needed.

8 0

3 years ago

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Help with these please! Write the equation in slope intercept form (y=mx+b) of each graph.

olga_2 [115]

Y=-1/2+2

The y intercept is clearly 2 and you're going down 2 over two every time so your slope is -1/2.

4 0

3 years ago