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2 years ago

50 POINTS MARKING BRAINLEIST PLS ANSWER ASAP

Mathematics

2 answers:

creativ13 [48]2 years ago

8 0

ANSWER IN THE ATTACHMENT ABOVE......

cestrela7 [59]2 years ago

8 0

Answer:

Step-by-step explanation:

2x+5+4x+6=53

6x+11=53

6x+11-11=53-11

6x=42

6x/6=42/6

x=7

Checking...

6(7)+11=42+11=53

53=53

Correct. Now, plug x into the equation for BC.

2(7)+5=14+5=19

BC=19

Hope this helps!

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What is the measure of angle F ??

masha68 [24]

9x+14x+4x+90 = 360
27x = 270
x = 10

<F = 14x = 14(10) = 140

4 0

3 years ago

The 9th graders are selling tickets to raise

Sidana [21]

Answer:

There were 30 children and 10 adults.

Step-by-step explanation:

Since they sold tickets to adults and childrens, the sum of those tickets must be equal to the total tickets that were sold, so we can mount our first equation as shown below:

adult + children = 40

Each adult ticket costs $9 and each children costs $5 and the total recieved was $240, therefore:

9*adult + 5*children = 240

We can mount the following equation system:

adult + children = 40

9*adult + 5*children = 240

We will multiply the first equation by -5 and sum both equations:

-5*adult -5*children = -200

9*adult + 5*children = 240

4*adult = 40

adult = 40 / 4

adult = 10

adult + children = 40

children = 40 - adult = 40 - 10 = 30

There were 30 children and 10 adults.

3 0

3 years ago

Solve this in distributing -(5.3x-7y)-9.6

algol13

Answer:

$-\left(5.3x-7y\right)\left(-9.6\right)=\:50.88x-67.2y$

Step-by-step explanation:

Given the expression

$-\left(5.3x-7y\right)\times \left(-9.6\right)$

$=-\left(-9.6\right)\left(5.3x-7y\right)$

Apply distributive law

$a\left(b-c\right)=ab-ac$

$a=-\left(-9.6\right),\:b=5.3x,\:c=7y$

so the expression becomes

$=-\left(-9.6\right)\times \:5.3x-\left(-\left(-9.6\right)\right)\times \:7y$

$=-\left(-9.6\right)\times \:5.3x+7\left(-9.6\right)y$ ∵ $-\left(-a\right)=a$

$\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a,\:-\left(-a\right)=a$

$=9.6\times \:5.3x-7\times \:9.6y$

$=50.88x-7\times \:9.6y$

$=50.88x-67.2y$

Therefore,

$-\left(5.3x-7y\right)\left(-9.6\right)=\:50.88x-67.2y$

3 0

3 years ago

a group of 13 ladies had lunch at a socal restaurant . the total bell for their lunch was 123.50. the ladies agreed that each on

vlada-n [284]

Answer:

$9.50

Step-by-step explanation:

$123.50/13 ladies

they each pay $9.50

7 0

3 years ago

3. Find the area of the sector. Use 3.14 for the value

Yuri [45]

I dont know sorry,hope you find someone that helps tho!!

3 0

3 years ago