Please help me please

Answer:

[tex](x,y)=(-\frac{122}{5}, 16)[/tex]

Step-by-step explanation:

Substitute the value of y

[tex]\left\{{{y=16} \atop {-5x-7y=10}}\right.[/tex]

Solve the equation

[tex]-5x-7*16=10[/tex]

A possible solution is

[tex]x=-\frac{122}{5}[/tex]

Check the solution

[tex](x, y) = (-\frac{122}{5}, 16)\\[/tex]

Simplify

[tex]\left \{ {{-2+16=14} \atop {-5*(-\frac{122}{5})-7*16=10}} \right.[/tex]

The ordered pair is a solution

[tex]\left \{ {{14=14} \atop {10=10}} \right.[/tex]

Answer:

22 cakes were sold.

Step-by-step explanation:

In order to solve this, add the cookies and cakes together (6+1=7) to get 7. Next, divide the cookies and cakes sold combined and divide that by the 7. 154/7=22. You sold 22 cakes and 132 cookies.

To check this answer multiply 6*22=132. Then multiply 22*1=22.

And add; 132+22=154.

Hope this helps!

Answer:

- [tex]\frac{12}{20}[/tex]

Step-by-step explanation:

To obtain a denominator of 20 requires the numerator and denominator to be multiplied by 4 , that is

- [tex]\frac{3}{5}[/tex] = - [tex]\frac{3(4)}{5(4)}[/tex] = - [tex]\frac{12}{20}[/tex]

Answer:

hhhhhhhhhhhhhhhh

Step-by-step explanation:

hhhhhhhhhhhhhhhhhhhh

x^2*y/(4/5)

I think they just wanted you to write it out right?

Answer:

w < -5

Step-by-step explanation:

Answer:

D. –5

Step-by-step explanation:

Answer:

5)7:8=180

84:96=180

6)4:5=90

40:50=90

7)a). q=135

p=45

b).a=70

b=110

supplementary angle=sum of two angle 180°

complementary angle=sum of two angle 90°

Answer:

The two angle 7 and 8 —> 7x and 8x

Sum of two supplementary angle is 180°

7x +8x =180

15x =180

x= 180/15

x = 12°

7x =7(12)= 84°

8x = 8(12)= 96°

The angles; 84° , 96°

The two angle 4 , 5 —> 4x and 5x

Sum of two complimentary angle is 90°

4x+5x =90

9x =90

x=90/9

x=10

4x—> 4(10) = 40°

5x —> 5(10) = 50°

The angles; 40° , 50°

q= 135 ( Vertically Opposite angles)

q+p = 180

135+p=180

p=180-135

p = 45°

_______o_____o_____

a= 70° ( Alternate angles)

a+ b = 180

70 + b = 180

b =180 - 70

b = 110

So ; angle a=70° , b = 110°

I hope I helped you^_^

Answer:

C

Step-by-step explanation:

Answer:

c.

Step-by-step explanation:

Starting with the multiplications, first the multiply matrix A by -4, so we multiply every value in the matrix by -4 and we get

16 16 -4

-4 -16 -28

-8 -12 -12

Then we do the next multiplication which is 8 by matrix B, so once again we multiply every value in the B matrix by 8

16 72 -72

64 64 -16

32 80 8

Now that we did both multiplications, just need to sum the results, so we sum each value of matrix A with the value on the matrix B that's on the same spot

16 + 16 16 + 72 -4 + (-72)

-4 + 64 -16 + 64 -28 + (-16)

-8 + 32 -12 + 80 -12 + 8

And the final result is

32 88 -76

60 48 -44

24 68 -4

So it's option c

Answer:

A community is a social unit (a group of living things) with commonality such as norms, religion, values, customs, or identity. pls Mark me branilest

Answer:

Step-by-step explanation:

i.

(10y+x) - (10x+y) = 63 ---> This subtracts the original from the number with the reversed digits, and makes it equal to 63, so the number increases by 63

y - x = 7 ---> We have to prove this is true, so put it into the original equation

y = 7 + x ---> manipulate the above equation, and substitute it into the original equation

[10 (7 + x) + x] - [10x + (7 + x)] = 63

(70 + 11x) - (11x + 7) = 63

63 = 63 ---> Solve the equation, and because it comes out to be true, you proved that y - x = 7

ii. a.

(10x + y) + (10y + x) = 99 ---> The sum of the original and reversed numbers

x + y = 9

y = 9 - x ---> substitute this into the original equation

[10x + (9 - x)] + [10 (9 - x) + x] = 99

(9x + 9) + (90 - 9x) = 99

99 = 99

ii. b.

infinitely many solutions

Step-by-step explanation:

He has done one half = ½

Finding ½ of 14

½ × 14

7

Hence, Hong has memorized 7 words

Answer:

0.157

Step-by-step explanation:

im pretty sure thats the answer

Answer:

p = m + n + x

Step-by-step explanation:

x + m = p - n

x + m + n = p

p = m + n + x

Answer:

36 + 3b = 117

Step-by-step explanation:

36 is the one specialized cake he sold.

3 is the cost and b is how many it represents

117 is your total, so we piece it together.

36 + 3(b) = 117

Answer:

36 + 3b = 117

Step-by-step explanation:

36 is the one specialized cake he sold.

3 is the cost and b is how many it represents

117 is your total, so we piece it together.

36 + 3(b) = 117

Answer: -2sin θcos θ -cos θ +sin θ -1

Step-by-step explanation:

I hope it helps! The attachment is down there…. If you have any more questions ask me!

Answer:

If a month has exactly 28 days then it is February

If the month is February then it has exactly 28 days.

Step-by-step explanation:

There is no such thing as two conditional statements however there is the conditional statement and the converse statement so I wrote those for your answer.

Answer:

A.

two rays that share a common endpoint called the vertex

Step-by-step explanation:

In Euclidean geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.

The best statement which defines an angle is "Two rays that shares a common endpoints called vertex".

A figure which is formed by two rays or lines that shares a common endpoint is called an angle.

From the definition of an angle, a figure which is formed by two rays or lines that shares a common endpoints is called an angle.

Hence, the best statement which defines an angle is "Two rays that shares a common endpoints called vertex".

Learn more about angle here:

https://brainly.com/question/13954458

#SPJ2

Answer:

$40 + h = $190

190 - 40 = 150

150 ÷ 55 ≈ 2.70 = 3

SO the electrician worked about 3 hours at your house.

h ≈ 3

Hope I helped ya!!

Answer:

$2.77 per bar sold

Step-by-step explanation:

Hi there!

We're given that selling 9 ice cream bars could make the truck driver $24.93. To find how much he'd make per bar sold, divide $24.93 by 9 ice cream bars:

24.93 ÷ 9 = 2.77

Therefore, the truck driver would make $2.77 per bar sold.

We could also find this answer using the given equation, y=kx.

y=kx

Let y equal the earnings. Let x equal the number of ice cream bars sold. Let k equal how much the driver would make per bar sold.

24.93=k(9)

24.93=9k

x=2.77

I hope this helps!

Step-by-step explanation:

hope this helps

Answer:

x(6-x)

Step-by-step explanation:

6x - x²

= x(6-x)

first u must find what is the similirity between the 2 eqn “6x and x²”

they both have x, therefore u have to bring the x outside the bracket

Answer:

7.6 x 10^-4

Step-by-step explanation:

Answer:

4.3L of the 40% solution and 5.7L of the 5% solution

Step-by-step explanation:

hope this helps

Answer:

Step-by-step explanation:

the only factors of -12 is: 12 and -1 or -12 and 1, 2 and -6 or -2 and 6, and finally 3 and -4 or -4 and 3. There is no even factor of 12 that adds to -2, unless you use decimals which even then I don’t think there is an awnser. So the awnser would be nonfactorable.

Answer:

.......................

Step-by-step explanation:

a) x=14°

b) x=23°

Answer:

the GCF of 64 and 48 is 16

Step-by-step explanation:

Factors of 64: 1, 2, 4, 8, 16, 32 and 64.

Factors of 48: 1, 2, 3, 4, 6, 8, 12, 16, 24 and 48.

Common factors of 48 and 64: 1,2,4,8,16

the GCF of 64 and 48 is 16

Answer:

the GCF of 64 and 48 is 16

Step-by-step explanation:

Step-by-step explanation:Factors of 64: 1, 2, 4, 8, 16, 32 and 64.Factors of 48: 1, 2, 3, 4, 6, 8, 12, 16, 24 and 48.Common factors of 48 and 64: 1,2,4,8,16the GCF of 64 and 48 is 16