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MaRussiya [10]
3 years ago
8

4(10x+6)--10(9x+9)please show your work​

Mathematics
1 answer:
Lynna [10]3 years ago
3 0

Answer:

x = -1.32

Step-by-step explanation:

I expect '--' means equals to '=' in your question

4(10x+6)--10(9x+9)

4(10x+6)=10(9x+9)

40x +24 = 90x +90

40x - 90x = 90 - 24

-50x = 66

x = -66/50

x = -1.32

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HELPPP please thank you so much
slavikrds [6]

Answer:

Inequality: 8p ≤ 50

Answer: p ≤ 6

Step-by-step explanation:

Step 1. Write an equation

$8 per person = 8p (where 8 is the cost per person and p is the number of people)

8p ≤ 50

Step 2. Solve

8p ≤ 50

÷8    ÷8

p ≤ 6.25 ≈ p ≤ 6 (your final answer is 6 because you cannot have 1/4 of a friend)

8 0
3 years ago
What is 2,190-2,910=
DochEvi [55]

Answer:

-720

Step-by-step explanation:

2910 is obviously bigger than 2190 so your answer will result in a negative so what you could do is 2910-2190 which is 720 and add a negative in front of it.

3 0
3 years ago
Find the slope of the line through each pair of points (20,-16),(19-16)
ale4655 [162]

Answer:

Undefined slope.

Step-by-step explanation:

The formula should be y2 - y1 over x2 - x1

Points ( 20,-16 ) and ( 19, -16 )

So ( -16 - ( -16 ) ) over ( 19 - 20 )

0 over -1

The slope is 0. Undefined.

3 0
3 years ago
Read 2 more answers
1. Katie buys a bag of cat food that contains 8 cups of dry food. She feeds her cat, Elmer, of a cup of food
Makovka662 [10]

Answer:

Step-by-step explanation:

For the points lol

5 0
3 years ago
Solve using substitution method x-y=11;3x+10y=-6<br> explain please
Tatiana [17]
Ok so for starters you want to choose an equation and solve for a variable.
So, I am going to choose x from the first equation.
Add y to both sides and you get x=11+y
Next, substitute 11+y for x in the other equation so you get...
2(11+y) +10y=-6
Next distribute the 2 throug the 11 and the y
22+2y+10y=-6
12y=-28
y=-28/12
reduce this fraction to make this easier.
y=-7/3
Now plug in why to either of the equations to find x
x-(-7/3)=11
x+7/3=11
x=11-(7/3)
x=(33/3)-(7/3)
x=26/3
so x = 26/3 and y = -7/3
you can also check to see if this is correct by substituting each of these values into the equations.
6 0
3 years ago
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