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3 years ago

Two-Step Equations

1 answer:

7 0

Answer: 8

Orignal Equation : 5x + 16 = 56

Step 1 - Subtract 16 from each side to get 5x alone.

5x + 16 - 16 = 56 - 16

5x = 40

Step 2 - Get x alone

5x/5 = 40/5

x = 8

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At the grocery store, 3 pints of ice cream cost $5.70. How much would 20 pints of ice cream cost?

mr_godi [17]

Answer:

114

Step-by-step explanation:

5.70 TIMES 20 = 114.

8 0

3 years ago

Read 2 more answers

Small sample: During an economic downturn, companies were sampled and asked whether they were planning to increase their workfor

leva [86]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The confidence level interval is $0.016 \le C \le 0.404$

Step-by-step explanation:

The sample size is $n = 20$

The number planning to increase workforce is $x = 3$

The confidence level is $c = 98$ %

The value of proportion for a plus 4 method is

$p = \frac{x+2}{n+4}$

substituting values

$p = \frac{3+2}{20+4}$

$p =0.21$

The z-critical value at confidence level of 98% is

$z_{c}=z_{0.98} = 2.33$

This values is obtained from the standard normal table

The confidence level interval can be mathematically represented as

$C =p \ \pm z_{c} * \sqrt{\frac{p(1-p)}{n+4} }$

substituting values

$C = 0.21 \pm 2.33 * \sqrt{\frac{0.21(1- 0.21)}{20 +4} }$

$C = 0.21 \pm 0.194$

=> $0.016 \le C \le 0.404$

7 0

3 years ago

Please answer ( 8th grade math )

maxonik [38]

The answer is C you just add both angles together and subtract the sum by 180 because that’s what triangles equal to. Leaving you with the answer of 78°! hope this helped :)

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3 years ago

Please I need HELP!!!!!!

Olin [163]

Answer:

I just need points I don't know your answer

Step-by-step explanation:

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2 years ago

The H.C.F OF 64,96,128<br>

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Answer: