All categories

3 years ago

Rosa wants to use $20 to buy games. The

Mathematics

1 answer:

kompoz [17]3 years ago

6 0

Answer:

The answer is B : 6

Step-by-step explanation:

2.50k means 2.50 multiplied by a number and the inequality means 20 is less than 2.50k + 5.50. 2.50 multiplied by 6 equals 15 and 15 plus 5.50 is 20.50 which is greater than 20.

You might be interested in

In ΔWXY, the measure of ∠Y=90°, YX = 40, XW = 41, and WY = 9. What ratio represents the cosine of ∠W?

andreyandreev [35.5K]

Answer:

$\cos(W) = \frac{9}{41}$

Step-by-step explanation:

Given

$\angle Y = 90^o$

$YX = 40; XW = 41; WY = 9$

Required

Determine $\cos(W)$

The question is illustrated with the attached image.

So:

$\cos(W) = \frac{Adajacent}{Hypotenuse}$

$\cos(W) = \frac{WY}{XW}$

This gives:

$\cos(W) = \frac{9}{41}$

3 0

3 years ago

Solve the equation: 3x-5 4x+1 ------- = -------- 2 4

Eduardwww [97]

Cross multiply 3x-5 with 4 and 4x + 1 with 2
Which it would give you 12x-20=8x+2 then solve for x

4 0

3 years ago

What is 840 rounded to the nearest 10th

Kitty [74]

Answer:

840

Step-by-step explanation:

Because there is a zero at the end so it is already at the tenth place.

8 0

3 years ago

Someone please help me

rusak2 [61]

Answer: 102 degrees

7 0

3 years ago

Read 2 more answers

PLEASE HELLP I REALY NEED SOME HELP WITH THIS QUESTION

Yuliya22 [10]

It's a summation (sigma) notation.

$\sum\limits_{i=1}^n a_i = a_1 + a_2 + ... a_n\\$

This expression means the sum of all the terms $a_i$ , where i takes the values from 1 to n.

So i is the index (like a counter) and n is the last value.

In this case:

$\sum\limits_{n=1}^6\frac{n}{2n+1} =\frac{1}{2*1+1}+ \frac{2}{2*2+1}+ \frac{3}{2*3+1}+ \frac{4}{2*4+1}+ \frac{5}{2*5+1}+ \frac{6}{2*6+1} \\= \frac{1}{3}+ \frac{2}{5}+\frac{3}{7}+\frac{4}{9}+\frac{5}{11}+\frac{6}{13}=\frac{113623}{45045} \approx 2.522\\\\$

3 0

4 years ago