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4 years ago

Find the answers to these 2 questions please...

Mathematics

2 answers:

aleksley [76]4 years ago

8 0

I think x =-19 hope this helps

zubka84 [21]4 years ago

6 0

First one
remember that all triangles internal angles (the 3 at the vertices) add to 180
we want BCD
we know BAD already
and ABC is a right angle
the measure of BDA is just there to throw us off

so

all adds to 180
BAD+ABC+BCD=180
59+90+BCD=180
149+BCD=180
minus 149 both sides
BCD=31
BCD=31 degrees

2nd problem
all angles add to 180 degrees
so
CAB+ABC+BCA=180
6x+147+2x+78+126+x=180
6x+2x+x+147+78+126=180
9x+351=180
minus 251 both sides
9x=-171
divide both sides by 9
x=-19
x=-19 degrees

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Jason has 3 1/2 candy bars. He wants to share the candy bars with his friends. He gives as many of his friends as possible 3/4 o

denis-greek [22]

Answer:

He can give 4 friends pieces of a candy bar.

Step-by-step explanation:

Each person has to have exactly 3/4 a candy bar.

If you divide all 3 1/2 candy bars into fourths, you will have 14 pieces.

So then, take out portions of 3 at a time, so take out 3 of these pieces, you have one friend. Take out another 3 pieces you now took 6 out and gave to 2 friends. Take another three and you've taken out 9 pieces for 3 friends. Take one more set of 3 pieces you now have taken out 12 pieces for 4 friends. There are only 2 more pieces left which is not enough for another friend so you have 4 friends that got some chocolate.

Hope this helps!! :)

5 0

3 years ago

Please help with this problem!!! ill award brainliest

Yuri [45]

Answer:

The initial fee for the ticket is 3.5 dollars

Step-by-step explanation:

For 4 stops, the price of a ticket is 8 dollars

For 8 stops, the price of a ticket is 14 dollars.

- The number of stops increased in this case is: 8 -4 = 4 stops

When there are more 4 stops, the price of a ticket also increase from 8 to 14 dollars => the increase in price is: 14 - 8 = 6 dollars.

Similarly, for 8 stops, the price of a ticket is 14 dollars.

For 12 stops, the price of a ticket is 20 dollars.

- The number of stops increased in this case is: 12 - 8 = 4 stops

When there are more 4 stops, the price of a ticket also increase from 14 to 20 dollars => the increase in price is: 20 - 14 = 6 dollars.

So that, the price for an extra stop is constant and equal to: 6/4 = 1.5 dollars

=> The price for 3 extra stops is: 1.5 x 3 = 4.5 dollars

For 4 stops, the price of a ticket is 8 dollars

=> The initial fee for the ticket = 8 dollars - The price for 3 extra stops = 8 - 4.5 = 3.5 dollars.

5 0

3 years ago

On Monday, 408 students went on a trip to the 200 All 7

kap26 [50]

Answer:

Step-by-step explanation:

408-9 =399

399/7 =57

7 0

3 years ago

Seven more than 3 Times a number is 49. What is the number?

garik1379 [7]

3n + 7 = 49
3n = 42
n = 14

answer
the number is 14

8 0

4 years ago

The vertex of this parabola is at (3,5). When the Y value is 6X value is negative one what is the coefficient of the squared ter

iren2701 [21]

We know that equation of a parabola is given by :-

y = a(x-h)² + k

Where (h,k) is the vertex of parabola and (x,y) is any point on its curve.

Given that vertex of parabola is (3,5) and one point (x,y) is (6,-1).

We can plug the given information in the equation of parabola and solve it for value of 'a' :-

-1 = a(6 - 3)² + 5

-1 = a(3)² + 5

-1 = 9a + 5

9a = -1 -5 = -6

a = $\frac{-6}{9} = \frac{-2}{3}$

a = $\frac{-2}{3}$ is the final answer.

7 0

3 years ago