Hey can you please help me posted picture of question

Mathematics

1 answer:

jeka57 [31]2 years ago

8 0

Probability is the answer

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A contractor bought 6.4 ft2 of sheet metal. He has used 2.1 ft2 so far and has $77.40 worth of

son4ous [18]

Answer:

$18

Step-by-step explanation:

Given:

6.4x - 2.1x = 77.4

Where,

x = cost of sheet metal per square foot

How much does sheet metal cost per square foot?

6.4x - 2.1x = 77.4

4.3x = 77.4

Divide both sides by 4.3

x = 77.4 / 4.3

= 18

x = $18

Sheet metal per square foot cost $18

8 0

3 years ago

Tuesday's high temperature was 8*C.the low temperature was -1*C .what was the difference between the high and low temperature

arsen [322]

the difference between both of them is 9*C

5 0

2 years ago

5+4+2 (-3)+7+(-5) equals to?

Cerrena [4.2K]

5+4+2(-3)+7+(-5)
or
5+4+2-3+7+(-5)?

7 0

3 years ago

Read 2 more answers

I need help with this question

jeka94

Hello!

First you find out the amount of balloons by adding them up

10 + 12 + 15 + 8 = 45

Then you add all the balloons that are not green

10 + 12 + 15 = 37

Then you put the amount of balloons that are not green over the total amount of balloons

The answer is 37/45

Hope this helps!

6 0

2 years ago

What is the standard error of a sampling distribution with a population standard deviation of 12 and the sample size of 81?

Marizza181 [45]

Answer: d. 1.3333

Step-by-step explanation:

We know that the standard error of a sampling distribution is given by :-

$S.E.=\dfrac{\sigma}{\sqrt{n}}$