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shusha [124]
2 years ago
7

Pleas help! I think its A but I'm not sure! 50 points

Mathematics
2 answers:
lianna [129]2 years ago
7 0

Answer:

C

Step-by-step explanation:

-3x-7<20

+7. +7

-3x < 27

/-3. /-3

x > -9

DedPeter [7]2 years ago
6 0

Answer:

x<-9

So C is correct answer

Step-by-step explanation:

-3x-7<20

-3x<20+7

-3x<27

x<27/-3

x<-9

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Please help with number 11 please.
Tomtit [17]

Answer: 4/10

Step-by-step explanation:

2/5 = ?/10 As the amount of pieces correspond to the denominator

As 5x2 = 10

2x2 = 4

5 0
2 years ago
At a 33-foot depth underwater, the pressure is 29.55 pounds per square inch (psi). At a depth of 66 feet, the pressure reaches 4
andrezito [222]
I am thinking it is times 2 everytime
4 0
3 years ago
X + y = 152,<br><br> 8.5x + 12y = 1,656<br><br> How many hats were sold?
Elodia [21]

Answer:

x = 48 and y = 104

Step-by-step explanation:

Given equations are:

x+y = 152\\8.5x+12y=1656

From equation 1:

x = 152-y

Putting the value of y in equation 2

8.5(152-y)+12y = 1656\\1292-8.5y+12y = 1656\\3.5y+1292 = 1656\\3.5y = 1656-1292\\3.5y = 364\\\frac{3.5y}{3.5} = \frac{364}{3.5}\\y = 104

Now we have to put the value of y in one of the equation to find the value of x

Putting y = 104 in the first equation

x+y = 152\\x+ 104 = 152\\x = 152-104\\x = 48

Hence,

The solution of the system of equations is x = 48 and y = 104

The value of variable which was assumed for number of hats, is the total number of hats.

6 0
2 years ago
What is the answer yall
kirza4 [7]

Answer:

A

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
James drops a water balloon from a height of 45cm how long will it take the water balloon to hit the ground? (Look at picture)
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It will take under 10 seconds to hit the ground

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