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vladimir2022 [97]
4 years ago
13

Solve for x -9 = -7 match

Mathematics
1 answer:
pashok25 [27]4 years ago
8 0
The answer is : x = 2
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A set of quiz scores is shown in the histogram below. The mean of the data set is 20.2, and the (population) standard deviation
Neko [114]

Answer:

13

Step-by-step explanation:

As the mean is 20.2 and the standard deviation is 2.4

The range within the first standard deviation is

(17.8,22.6)

This means that we can safely use the range of (18,22) as we cannot confirm whether the other values fall within the range.

Within this range there are

2+3+4+3+1=13

5 0
3 years ago
How many solutions does this equation have -4(x+5)=-4x-20
erica [24]

Your answer is <em>infinitely</em><em> </em><em>many</em><em> </em><em>solutions</em><em> </em>

Step-by-step explanation:

-4x+-20=-4x-20

+4× +4x

(4x cancel out)

Your left with

-20=-20

Therefore your answer is infinitely many solutions

8 0
3 years ago
A summer camp cookout is planned for the campers and their families. there is room for 450 people. each adult costs $7, and each
Yuri [45]

Hence, the required inequality is x+y≤4, 7x+4y≤1150

<h2>What is inequality?</h2>

inequality, In mathematics, a statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.

<h3>How to solve?</h3>

Let x be the number of adults and y be the number of campers.

There are rooms for 450 people, so

x+y≤450.

Each adult costs $7, then x adults cost $7x.

Each camper costs $4, then y campers cost $4y.

There is a maximum budget of $1,150, so

7x+4y≤1,150

Hence, you get the system of two inequalities:

         x+y≤4

         7x+4y≤1150

to learn more about inequality: brainly.com/question/16562548

#SPJ4

3 0
2 years ago
Jim is 4 years older than his brother Bob. In two years, Jim will be twice Bob's age. How old are they now?
kondor19780726 [428]

Answer: Jim is 8 years old

Step-by-step explanation: just add multiply by 2

5 0
3 years ago
Lana cuts 2 pieces for every 7 inches from a dowel for a craft project, for a total of 6 pieces.
n200080 [17]

6*7=42/2=21




the asnwer is 21

6 0
4 years ago
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