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Savatey [412]
2 years ago
9

Please help me solve this... I will mark you brainliest if it’s correct

Mathematics
1 answer:
Crank2 years ago
8 0
(5 + 7x + 6)/2 = 3x + 9

7x + 11 = 6x + 18

7x - 6x = 7

x = 7

EF = 3x + 9

= 3(7) + 9

= 21 + 9

= 30
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Evaluate 3C1.<br><br> a)3<br> b)1<br> c)2<br> d)6
murzikaleks [220]

Answer: Option a) 3

Step-by-step explanation:

The formula for calculating combinations is as follows

nCr = \frac{n!}{r!(n-r)!}

Where "n" is the amount of items in a set and you can choose "r" from them

3C1 reads as: The combination of 1 in 3. You have a set of 3 elements and choose 1 of them.

n = 3\\\\r = 1

So :

3C1=\frac{3!}{1!(3-1)!}\\\\3C1=\frac{3!}{1!*2!}\\\\3C1=\frac{3*2*1}{1*2*1}\\\\3C1=3

5 0
2 years ago
Dylan is saving money to buy a new bike that costs $195. He has $25 already saved and plans to save $40 each week. Which equatio
lakkis [162]

Answer:

25+40x=195

Step-by-step explanation:

If he already has $25, you need to add that to 40x (40 times the amount of weeks it takes to get to 195, added with 25).

6 0
3 years ago
A movie theatre sells 3 different sizes of popcorn: small, medium, and large. An order of popcorn comes with 4 different topping
Darina [25.2K]

you can only choose 4 unique ways Step-by-step explanation:

6 0
3 years ago
Point X is the incenter of ΔABC.
Gnoma [55]

The measures of GX = 13

The measures of \angle ABX=22^0

EX = 4z + 1  and XF = 2z + 7

Take EX and XF equal time each other and then solve for z and then you will get GX because EX = XF = GX are congruent.

EX = XF

<h3>What is congruent?</h3>

Two figures or objects are congruent if they have the same shape and size, or if one has the same shape and size as the mirror image of the other.

4z + 1 = 2z + 7

2z = 6

z = 3

As,    EX = XF = GX

EX = 4(3) + 1

EX = 13

Therefore, GX = 13      ------      ( EX = XF = GX )

To find the angle ABX, divide the angle ABC by 2 you will get

\angle ABX=22^0

For more information, refer to the link given below

brainly.com/question/16548605

#SPJ1

4 0
1 year ago
I don’t know how to graph two equations that 2w+2l=228 and l=w+42 and calculate the w and l.
Reika [66]

Solve for w and l by using the system of equations.

2l=-2w+228

l=w+42

Substitute w+42 for l in the first equation.

2(w+42)=-2w+228

2w+84=-2w+228

4w=144

w=36

Now substitute 36 for w in any equation to get l=78.

To graph the equations, first make them equal l.

l=-w+114 and l=w+42 are your equations. You ca plug in values for w to plot points on the graph.

5 0
3 years ago
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