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Colt1911 [192]
3 years ago
14

-Solve each equation. Example x+3=12 9+3=12

Mathematics
1 answer:
mash [69]3 years ago
7 0

y + 9 = 9  | - 9 \\ y+ 9 - 9 = 9 - 9 \\ y = 0

10 + 2x = 20 | - 10 \\ 10 + 2x - 10 = 20 - 10 \\ 2x = 10 | \div 2 \\ 2x \div 2 = 10 \div 2 \\ x = 5

17 + 3c = 26 | - 17 \\ 17 + 3c - 17 = 26 - 17 \\ 3c = 9 | \div 3 \\ 3c \div 3 = 9 \div 3 \\ c = 3

x - 4 = 3 | + 4 \\ x - 4 + 4 = 3 + 4 \\  x = 7

2z - 7 = 7 | + 7 \\ 2z - 7 + 7 = 7 + 7 \\ 2z = 14 | \div 2 \\ 2z \div 2 = 14 \div 2 \\ z = 7

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A school track is shown.
ella [17]

Answer:

2232.36m

Explanation:

since the perimeter of two semicircles adds up to that of one circle, the perimeter of the track would be the perimeter of the circle + the length of the rectangle.

we can find the perimeter of the circle using the formula of π × diameter, which would be:

π × diameter

= 3.14 × 74

= 232.36

now, we can add this to the given length of the rectangle:

232.36 + 1000 + 1000 = 2232.36

thus, the perimeter of the track is <u>2232.36m</u>.

i hope this helps! :D

4 0
3 years ago
Read 2 more answers
The revenue, cost, and profit functions for a line of cell phone cases is shown. Identify the location on the profit function wh
grigory [225]

Answer:

Im pretty sure the profit location is at the center of the rise

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Questions:
My name is Ann [436]

The  solution to the expressions given are;

9 -9t/ 12 - 5t

a. 20/ 169

b. -170/ 169

c.  386/ 169

d.  -10/ 169

<h3>How to solve the expressions</h3>

Given:

\frac{9 - 19t}{12 - 5t}

We can see that both variables in the numerator and denominator have no common factor, thus cannot be factorized further

a. \frac{203}{169} - \frac{183}{169}

First, let's find the lowest common multiple

LCM = 169

= \frac{203 - 183}{169}

= \frac{20}{169}

= 20/ 169

b. \frac{13}{119} - \frac{183}{119}

The lowest common multiple is 119

= \frac{13 - 183}{119}

substract the numerator

= - 170/ 119

c. \frac{203}{169} - \frac{183}{169}

The lowest common multiple is 169

= \frac{203 + 183}{169}

= 386/ 169

d. \frac{9}{169}- \frac{19}{169}

The lowest common multiple is 169

= \frac{9 - 19}{169}

= - 10/ 169

Thus, we have the solutions to be 9 -9t/ 12 - 5t, 20/ 169, -170/ 169, 386/ 169, -10/ 169 respectively.

Learn more about LCM here:

brainly.com/question/12732917

#SPJ1

7 0
1 year ago
Consider this sequence: -81, -54, -36, -24, … .
N76 [4]
If it is geometric then
if the terms are a,b,c,d then
b/a=c/b=d/c
so
-54/-81=-36/-54=-24/-36?
2/3=2/3=2/3

and that is the common ratio

it is geomertic and common ratio is 2/3
7 0
3 years ago
How should I do this question
Ivanshal [37]

Answer:

( 11   -6)

( -5   6 )


Step-by-step explanation:

Multiply the first row of N by first column of M. This will give the first  element in top row of the answer :-

-3*-2 + 1*5 =  11

Then multiply the first row in N by the second column of M to give the second element of the top row.

-3*0 + 1*-6 =   -6

Then do a similar process with the second row in N.

8 0
3 years ago
Read 2 more answers
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