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3 years ago

60 point question!...........

Mathematics

2 answers:

rusak2 [61]3 years ago

7 0

Answer:

About 50k

Step-by-step explanation:

Vaselesa [24]3 years ago

3 0

Answer:

dhsfhb

Step-by-step explanation:

top secret

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ANSWER ASAP PLEASE

ruslelena [56]

Answer:

jim is correct, x does equal 7°. justify your answer by putting seven back into the equation. it gives you back that 180 equals 180, therefore it is correct

Step-by-step explanation:

so, all angles of a triangle have to add up to 180;

(15x) + (8x - 11) + (3x + 9) = 180

15x + 8x - 11 + 3x + 9 = 180

add your common numbers

26x - 2 = 180

add 2

26x = 182

divide 26

x = 7

put it back into the equation

15(7) + 8(7) - 11 + 3(7) + 9 = 180

180 = 180

3 0

3 years ago

When using a ruler, where is the unit?

Afina-wow [57]

Answer:

Is it The numbers on the ruler?

Step-by-step explanation:

6 0

2 years ago

John’s father is 5 times older than John and John is twice as old as his sister Alice. In two years time, the sum of their ages

oksano4ka [1.4K]

Answer:

John’s age is 8 years

Step-by-step explanation:

Let

x -----> John’s father's age

y -----> John’s age

z -----> John’s sister's age

we know that

$x=5y$ -----> equation A

$y=2z$

$z=y/2$ -----> equation B

$(x+2)+(y+2)+(z+2)=58$

$x+y+z+6=58$

$x+y+z=52$ -----> equation C

Substitute equation A and equation B in equation C and solve for y

$5y+y+y/2=52$

Multiply by 2 both sides to remove the fraction

$10y+2y+y=104$

$13y=104$

$y=8$

Find the value of x

$x=5(8)=40$

Find the value of z

$z=8/2=4$

therefore

John’s father's age is 40 years

John’s age is 8 years

John’s sister's age is 4 years

7 0

3 years ago

6x^2=726 <img src="https://tex.z-dn.net/?f=6x%5E2%20%3D%20726" id="TexFormula1" title="6x^2 = 726" alt="6x^2 = 726" align="ab

Greeley [361]

Answer:

$x=11$

Step-by-step explanation:

Step 1: Divide both sides by 6

$6x^2 / 6 = 726 / 6$

$x^2 = 121$

Step 2: Square root both sides

$\sqrt{x^2} = \sqrt{121}$

$x = 11$

Answer: $x=11$

6 0

3 years ago

Read 2 more answers

I Need Help Please And Thank You

Romashka [77]

C. Yes, because it passes the vertical line test.

6 0

3 years ago