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skelet666 [1.2K]
3 years ago
12

Please answer i give 20 points​

Mathematics
1 answer:
kherson [118]3 years ago
5 0

Answer:

amount saved

Step-by-step explanation:

now i need twenty points

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There were 36 cookies in a package. Chase invited 6 friends to his birthday party. How many cookies will each person get if all
podryga [215]
7 cookies each without surpassing 36.
4 0
3 years ago
Name the type of reasoning (if any) used in the statements below: 1. All mammals are warm-blooded. 2. An elephant is a mammal. 3
faust18 [17]

Answer:

I believe Deductive Reasoning. Based on logic. for example, If all up-and-coming freshmen are required to take a placement test, and you're an upcoming freshmen, therefore, you have to take a placement test.

Step-by-step explanation:

7 0
3 years ago
Find the value of z and x?
zloy xaker [14]

Answer:

For z I don't know what to do but thats for x, maybe someone else could find z for you :)

Step-by-step explanation:

5x - 89 = 61

      +89    +89

----------------------

5x = 50

----    -----

5         5

x = 10

6 0
3 years ago
I’m doing literal equations and I need help on this question X + 2/ y - 1 = 2
Tanzania [10]

Answer:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : 

                     x+2/y-1-(2)=0 

STEP1:

2 Simplify — y

Equation at the end of step1:

2 ((x + —) - 1) - 2 = 0 y

STEP2:Rewriting the whole as an Equivalent Fraction

 2.1   Adding a fraction to a whole 

Rewrite the whole as a fraction using  y  as the denominator :

x x • y x = — = ————— 1 y

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole 

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

 2.2       Adding up the two equivalent fractions 

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

x • y + 2 xy + 2 ————————— = —————— y y

Equation at the end of step2:

(xy + 2) (———————— - 1) - 2 = 0 y

STEP3:

Rewriting the whole as an Equivalent Fraction :

 3.1   Subtracting a whole from a fraction 

Rewrite the whole as a fraction using  y  as the denominator :

1 1 • y 1 = — = ————— 1 y

Adding fractions that have a common denominator :

 3.2       Adding up the two equivalent fractions 

(xy+2) - (y) xy - y + 2 ———————————— = —————————— y y

Equation at the end of step3:

(xy - y + 2) ———————————— - 2 = 0 y

STEP4:

Rewriting the whole as an Equivalent Fraction :

 4.1   Subtracting a whole from a fraction 

Rewrite the whole as a fraction using  y  as the denominator :

2 2 • y 2 = — = ————— 1 y

Adding fractions that have a common denominator :

 4.2       Adding up the two equivalent fractions 

(xy-y+2) - (2 • y) xy - 3y + 2 —————————————————— = ——————————— y y

Equation at the end of step4:

xy - 3y + 2 ——————————— = 0 y

STEP5:

When a fraction equals zero :

 5.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

xy-3y+2 ——————— • y = 0 • y y

Now, on the left hand side, the  y  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

   xy-3y+2  = 0

Solving a Single Variable Equation:

 5.2     Solve   xy-3y+2  = 0 

In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

3 0
3 years ago
Consider the infinite geometric series (∞/Σ/n=1) * -4(1/3)^{n-1}.
raketka [301]
The first four terms of the series probably refer to the first four partial sums.

\displaystyle\sum_{n=1}^1-4\left(\frac13\right)^{n-1}=-4\left(\frac13\right)^{1-1}=-4
\displaystyle\sum_{n=1}^2-4\left(\frac13\right)^{n-1}=-\frac{16}3
\displaystyle\sum_{n=1}^3-4\left(\frac13\right)^{n-1}=-\frac{52}9
\displaystyle\sum_{n=1}^4-4\left(\frac13\right)^{n-1}=-\frac{160}{27}

which you can compute either by adding one term at a time, or using the well-known formula,

\displaystyle\sum_{n=1}^kar^{n-1}=a\frac{1-r^{k+1}}{1-r}

(I can provide a link to a derivation I gave in a nearly identical question in the comments)

The series converges as k\to\infty if and only if |r|, which is certainly the case here, since -1.

Extrapolating from the formula above, the sum of the convergent series is

\displaystyle\sum_{n=1}^\infty ar^{n-1}=\frac a{1-r}

so the sum for this series is \dfrac{-4}{1-\frac13}=-6.
5 0
3 years ago
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