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Evgesh-ka [11]
3 years ago
10

Help please i don't get it​

Mathematics
1 answer:
GaryK [48]3 years ago
7 0

Answer:

so all triangles total value has to be 180 so we take 180-74=106/2=53

Step-by-step explanation:

You might be interested in
2.
Iteru [2.4K]

answer:

x = 0.80

y = 1.50

step-by-step explanation:

x = cost of tacos

y = cost of burritos

both equations:

3x + 2y = 5.40

2x + 1y = 3.10

             ^

turn this | into this |

                             v

               y = 3.10 - 2x

then add it to the equation :

3x + 2 [ 3.10 - 2x ] = 5.40

3x + 6.2 - 4x = 5.40

-1x = - 0.8

x= 0.80

then add x = 0.80 to the equations to get :

3 [ 0.80 ] + 2y = 5.40

2.4 + 2y = 5.40

2y = 3

y = 1.5

5 0
3 years ago
Simplify the expression, then evaluate when x=5 and y=6. x(y+4)+3(2x+7y)
tensa zangetsu [6.8K]

Answer:

Simplification

x(y+4)+3(2x+7y) = xy + 10x + 21y

= x(y + 10) + 21y

On evaluation when x=5 and y=6,

The expression is equal to 206

Step-by-step explanation:

Note that x and y are unknown variables.

On expansion,

x(y+4)+3(2x+7y)

= xXy + xX4 + 3X2x + 3X7y

= xy + 4x + 6x + 21y

= xy + 10x + 21y

On factorising,

xy + 10x + 21y = x(y + 10) + 21y

Evaluation when x=5 and y = 6

We substitute the given values of x and y into the simplified expression

xy + 10x + 21y

= 5X6 + 10X5 + 21X6

= 30 + 50 + 126

= 206

Therefore, on evaluation of the given expression, when x=5 and y=6, we get 206

3 0
3 years ago
What is the value of x
REY [17]

Answer:

x=y

Step-by-step explanation:

X= y becaus eit just does and y + x = n witch is the diameter of x

3 0
4 years ago
Which expression represents the calculation “subtract 4 from 12, then divided by 8”? A) 4 ÷ (12 − 8) B) (12 − 4) ÷ 8 C) (4 − 12)
Svetlanka [38]

The answer is B

As the question states that you need to "subtract 4 from 12" that means that you are taking 4 away from 12, so it would be 12-4.

Then it says to divide by 8. This means that for the subtraction to happen first, it must be withing parenthesis, so that would make the expression become

(12-4)÷8

6 0
3 years ago
Solve<br> 3(4- 2)<br> 2.<br> Select the correct choice below an
Gnoma [55]

Answer:

6

Step-by-step explanation:

3(4-2) distribute 3

12-6

6

4 0
3 years ago
Read 2 more answers
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