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jekas [21]
3 years ago
11

HELP ME WITH MY MATH HOMEWORK 9 AND 10

Mathematics
1 answer:
likoan [24]3 years ago
8 0

Answer:

9. 34            10.  8  

Step-by-step explanation:

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PLS HELP FAST WILL GIVE BRAINLIEST
amid [387]

Answer:

The values are calculated with the help of table.

Step-by-step explanation:

We are given the following information in the question:

A table is shown showing trees on two different plots of land which are tested for disease.

    Tree:        1           2           3           4          5           6          7        

     Plot:         A          A           B           B         B           A          B

Disease:        Y          N           Y           Y          Y          N         N

We have to find:

Calculating from the table, we can fill the values as:

                                             Plot A                Plot B

Disease Present                        1                          3

Disease not Present                2                          1

6 0
3 years ago
Someone help me with this!!
Wewaii [24]

Answer:

shown below

Step-by-step explanation:

1. o corresponds with r

2.q is also 70 degrees

3. and QR is 8.5 inches

5 0
3 years ago
Coraline spent $78 on 4 T-shirts. How much did each T-shirt cost? Explain your answer
anyanavicka [17]

Answer:

$19.50

Step-by-step explanation:

You can set up a simple equation where t-shirts are represented by t and cost by c.

$78=4t.

To solve this equation, you want to get the variable isolated. To do this divide four on both sides since the t is multiplied by 4 and to undo multiplication, you divide. So you divide 4t by four, which gets you 1t, and then you divide 78 by 4 (because whatever you do to one side you have to do it to the other) which gives you 19.5. So the remaining equation is

$19.50=1t

And since t represents t-shirts, the equation is saying that $19.50 is equal to one t-shirt.

7 0
3 years ago
Solve the system by elimination. 4x=−3y−10 9x+2y=6
nadya68 [22]

Answer:

<h2>x = 2, y = -6</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}4x=-3y-10&\text{add}\ 3y\ \text{to both sides}\\9x+2y=6\end{array}\right\\\\\left\{\begin{array}{ccc}4x+3y=-10&\text{multiply both sides by 2}\\9x+2y=6&\text{multiply both sides by (-3)}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}8x+6y=-20\\-27x-6y=-18\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad-19x=-38\qquad\text{divide both sides by (-19)}\\.\qquad\dfrac{-19x}{-19}=\dfrac{-38}{-19}\\.\qquad \boxed{x=2}

\text{Put the value of}\ x\ \text{to the second equation:}\\\\9(2)+2y=6\\18+2y=6\qquad\text{subtract 18 from both sides}\\2y=-12\qquad\text{divide both sides by 2}\\\dfrac{2y}{2}=\dfrac{-12}{2}\\\boxed{y=-6}

4 0
4 years ago
1. Use GRAPHING to solve the systems of equations below. *
Alchen [17]

Answer:

it is A & D

Step-by-step explanation:

5 0
3 years ago
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