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Xelga [282]
2 years ago
6

What is 0.77 estimated

Mathematics
2 answers:
galina1969 [7]2 years ago
5 0
The answer would be .80 or it may be 1
Rama09 [41]2 years ago
4 0
Most likely 1
 
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Five times the number of test tubes in a school’s chemistry lab exceeds three times the number of beakers it has by 660. The sum
Usimov [2.4K]
<span>5t=3b+660....and ... 2t+5b=450

from the first we can see that t=(3b+660)/5 and using this value in the second...

(6b+1320)/5+5b=450 making all have common denominator..

6b+1320+25b=2250

31b=930

b=30...and since 2t+5b=450

t=150</span>
4 0
3 years ago
Ethan earns $10 every hour for walking Ms. Barn's two dogs, plus an additional $7
MatroZZZ [7]
H=hour
10h+7=32 would be the best equation. Hope this helps!
3 0
2 years ago
Sales prices of baseball cards from the 1960s are known topossess a skewed-right distribution with a mean sale price of $5.25and
Serga [27]

Answer:

c. Skewed-right with a mean of $5.25 and a standard error of$0.28

Step-by-step explanation:

As we have given that Sales prices of baseball cards have a right-skewed distribution with a mean $5.25 and a standard deviation is $2.80.

Now, We know that if standard deviation = σ

then, standard error = \frac{\sigma}{\sqrt{n}}

As, we have standard deviation = $2.80

then standard error will be \frac{2.80}{\sqrt{100}}

⇒ Standard error = $0.28

Hence, Option (c) is the correct option.

6 0
3 years ago
The graph below shows a system of equations: Draw a line labeled y equals minus x plus 5 by joining the ordered pairs 0, 5 and 5
Montano1993 [528]

Answer:

The x-coordinate of the solution is x=3

Step-by-step explanation:

we have

y=-x+5 ------> equation A

y=x-1 ------> equation B

Solve the system of equations by substitution

Substitute equation B in equation A and solve for x

x-1=-x+5

x+x=5+1

2x=6

x=3

Find the value of y

y=x-1  ------> y=3-1=2

The solution of the system of equations is the point (3,2)

therefore

The x-coordinate of the solution is x=3

5 0
2 years ago
Simplify: (–7x – 5x4 + 5) – (–9x4 – 5 – 9x). 4x4 + 2x + 2 + 10 –16x4 + 8x + 10 –16x4 – 8x 4x4 + 2x + 10
fenix001 [56]

Answer:

=−4.4x^8+3.6x^5−35x^4+5x+37

Step-by-step explanation:

please mark me brainliest!

5 0
2 years ago
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