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3 years ago

8

write a problem that can be modeled by the equation 2x 40=60. then the solve the equation and explain the solution in the contex

t of the problem

1 answer:

elixir [45]3 years ago

5 0

<span>A tutor charges $40 plus $2/minute to do algebra homework.
Cost = 2*x + 40, where x is the number of minutes.
</span>

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What is the are of this figure giving our brainlist to whoever writes the answer in 10 min

kiruha [24]

Answer:

63 cm^2

Step-by-step explanation:

For finding the area, split the given figure into 2 rectangles one with dimensions 6×5 and another with dimensions 12×2

Area = 6×5 + 12×2 = 39+24 = 63

6 0

2 years ago

What is the value of y in the equation 3(3y – 12) = 0? (5 points)

natta225 [31]

Set equal to 0

3=0, nope

3y-12=0
add 12
3y=12
divide 3
y=4

5p-4p-8=-2+3
p-8=1
p=9
1 solution

6 0

3 years ago

Read 2 more answers

The sum of the first 15 terms of a geometric sequence with 7 as the first term and a common ratio of -3 is __________.

Andre45 [30]

Step-by-step explanation:

the formula for the sum of the first n terms of a geometric sequence is

Sn = s1(1 - r^n)/(1 - r)

with r being the common ratio and s1 is the first term.

so,

S15 = 7×(1 - (-3)¹⁵)/(1 - -3) = 7×(1 - -14,348,907)/4 =

= 7×14,348,908/4 = 7×3,587,227 = 25,110,589

4 0

2 years ago

Please explain every step

pogonyaev

<h3>Answer:</h3>

761680

<h3>Explanation:</h3>

$\sf \boxed{\sum _{n=1}^{44}\:60\left(1.2\right)^{n-2}}$

<u>Identify the following's</u>:

First Term [a] = 60(1.2)ⁿ⁻² = 60(1.2)¹⁻² = 50

Common ratio [r] = 1.2

Total Terms [n] = 44

===========================

$\sf Geometric \ Sum \ of \ Terms = \dfrac{a(r^n - 1)}{r-1}$

===========================

Solving Steps:

<em /> $\rightarrow \sf \dfrac{a(r^n - 1)}{r-1}$ <em />

<em />

<em /> $\rightarrow \sf \dfrac{50(1.2^{44} - 1)}{1.2-1}$ <em />

<em />

<em /> $\rightarrow \sf 761679.5808$ <em />

<em />

$\rightarrow \sf 761680 \ \ \ (rounded \ to \ nearest \ integer)$

8 0

2 years ago

What is the expression 9+n/3-6 when n = 12?

sergiy2304 [10]

Replace n with 12.

9 + 12 / 3 - 6

Simplify.

21 / -3 = -7

Hope this helps!

7 0

3 years ago

Read 2 more answers