All categories

3 years ago

Please answer correctly !!!! Will mark brainliest !!!!!!!!!!!!!!

Mathematics

2 answers:

siniylev [52]3 years ago

4 0

Answer:

I am thinking B

Step-by-step explanation:

I may be wrong

Correct me

shepuryov [24]3 years ago

4 0

Answer:

B impossible situation

Step-by-step explanation:

x = price of notebook

y = price of newspaper

40x +20y = 130 divide by 10 → 4x + 2y =13

8x + 4y =28 divide by 2 → 4x +2y = 14

there are 2 same equations with different answers so no solution

You might be interested in

Y=? Please help ASAPPP will mark brainliest

Finger [1]

Answer:

y=4

Step-by-step explanation:

5x4=20

20x4=80

80x4=320

and so on

3 0

3 years ago

Read 2 more answers

Which table of ordered pairs represents a proportional relationship?

dedylja [7]

Answer:

A 2-column table with 3 rows. Column 1 is labeled x with entries 14, 28, 42. Column 2 is labeled y with entries 2, 4, 6.

Step-by-step explanation:

Examining the response options:

A 2- compartment chart with 3 rows. Column 1 is designated x with records 1, 5, 6. compartment 2 is designated y with records 5, 20, 30.

No, as y = 25 not 20 and x = 5 .

A 2- compartment chart with 3 rows. Column 1 is identified x with approaches 48, 32, 16. compartment 2 is designated y with listings 4, 2, 1.

No, y =64 not 48 and x= 4.

A 2- compartment chart with 3 lines. compartment 1 is designated x with records 0, 1, 3. compartment 2 is designated y with records 90, 70, 25.

No, y= 25+3*45= 160 not 90 and x = 3.

A 2- compartment chart with 3 lines. compartment 1 is designated x with records 42, 28, 14. compartment 2 is designated y with records 2, 4, 6.

Yes, as 2*7 = 14, 4*7= 28, 6*7= 42.

5 0

3 years ago

Read 2 more answers

The table shows how the number of sit-ups marla does each day has changed over time. at this rate how many sit-ups will she do o

DENIUS [597]

The number of situps form an AP with first term (a) = 17 and common difference (d) = 4

Tn = a + (n - 1)d
T12 = 17 + (12 - 1) x 4 = 17 + 11(4) = 17 + 44 = 61

Therefore, she will do 61 situps on day 12.

5 0

3 years ago

Read 2 more answers

If a baseball teams radio of wins to losses is 3 to 4 what is the radio of wins to games played ? (There are no ties)

Trava [24]

Answer: If the team has one 3 out of 4 of their games, the ratio is 3/4, or 75%

Step-by-step explanation:

8 0

3 years ago

Find the indicated sum of each sequence S8 of -2,-13,-24,-35

valentina_108 [34]

Answer:

The sum of the arithmetic sequence is $S_{8}=-324$ .

Step-by-step explanation:

A sequence is a set of numbers that are in order.

In an arithmetic sequence the difference between one term and the next is a constant. In other words, we just add the same value each time infinitely.

If the first term of an arithmetic sequence is $a_1$ and the common difference is d, then the nth term of the sequence is given by:

$a_{n}=a_{1}+(n-1)d$

For the sequence

$-2,-13,-24,-35,...$

The pattern is continued by adding -11 to the last number each time.

An arithmetic series is the sum of an arithmetic sequence. We find the sum by adding the first, $a_1$ and last term, $a_n$ , divide by 2 in order to get the mean of the two values and then multiply by the number of values, n

$S_{n}=\frac{n}{2}(a_{1}+a_{n})$

The sum of the arithmetic sequence is

$a_{8}=-2+(8-1)(-11)=-2-77=-79$

$S_{8}=\frac{8}{2}(-2-79})=4\left(-2-79\right)=4\left(-81\right)=-324$

3 0

3 years ago