2 years ago

Hoy do i solve y=x+1 Using The substitution meathod

Mathematics

1 answer:

schepotkina [342]2 years ago

8 0

Sub y = 0 in to find x intercept and x = 0 in to find y intercept

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Ms Sherman is preparing 5 and 5/8 cups of rice for his family reunion. She plans to use 1/4 of a cup for each serving. How many

Temka [501]

5 5/8 as an improper fraction

(8*5 +5) /8 = 45/8

45/8 divided by 1/4 =

copy dot flip

45/8 * 4/1 = 45/2

22 1/2

She has 22 1/2 servings

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2 years ago

A 46 gram sample of a substance that is used to sterilize surgical instruments has a k-value of 0.1374. Find the substance's hal

mars1129 [50]

Answer:

$t=5.0days$

Step-by-step explanation:

Using the formula for the exponential decay that is $N=N_{0}e^{-kt}$ , we have N= $\frac{1}{2}{\times}46=23$ , $N_{0}=46$ and k=0.1374.

Thus, $N=N_{0}e^{-kt}$ becomes

$23=46{\times}e^{-0.1374t}$

$\frac{23}{46}=e^{-0.1374t}$

$\frac{1}{2}=e^{-0.1374t}$

Taking log on both sides, we get

$ln(\frac{1}{2})={-0.1374t}$

$t=\frac{ln\frac{1}{2}}{-0.1}$

$t=\frac{-0.6931}{-0.1374}$

$t=5.0days$

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2 years ago

Enter a digit in each box to complete the division problem.<br><br><br> please help

jekas [21]

Answer:

There is no box

Step-by-step explanation:

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2 years ago

What is the first step to solve this equation

shepuryov [24]

Answer:

First step, add 11 to 44.

Step-by-step explanation:

After that, divide both sides by negative 3.

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Definition of transposition of formulae

neonofarm [45]

The process of expressing w in terms of A and l is called transposition or changing the subject of the formula. The methods used to change the subject of the formula are the same as those used for solving equations.

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2 years ago