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2 years ago

Y varies directly with x. When x is 4 y is 8. Find y when x = 10.

Mathematics

1 answer:

grandymaker [24]2 years ago

4 0

Step-by-step explanation:

y = 4 when x = 8 So, 4 = 8k

k = 1/2

y = (1/2)x

Therefore, when x = 10, y = (1/2)(10) = 5

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Kira, goran, & joe sent a total of 90 text messages during the weekend. Goran sent 5 fewer messages than Kira. Joe sent 3 ti

MissTica

Answer:

Kira sent 19 text messages, Goran sent 14 text messages and Joe sent 57 text messages.

Step-by-step explanation:

Let be "k" the number of text messages that Kira sent during the weekend, "g" the number of text messages that Gora sent during the weekend and "j" the number of text messages that Joe sent during the weekend.

We know know that they sent a total of 90 text messages then:

$k+g+j=90$

Goran sent 5 fewer messages than Kira. This is:

$g=k-5$

And Joe sent 3 times as many messages as Kira. Then:

$j=3k$

The steps to solve this are:

- Substitute the second equation and the third equatio into the first equation and then solve for "k":

$k+(k-5)+(3k)=90\\\\5k-5=90\\\\5k=90+5\\\\k=\frac{95}{5}\\\\k=19$

- Substitute this value into the second equation to find "g":

$g=19-5=14$

- Substitute the value of "k" into the third equation to find "j":

$j=3(19)=57$

4 0

3 years ago

Start at 3. create a pattern that multiplies each number by 3 stop when you have 5 numbers

Gnesinka [82]

3, 6, 9, 12, 15
I did what you asked

7 0

3 years ago

Read 2 more answers

How exactly do i name the 4 ways?

Vladimir79 [104]

Well, basically there are

acute angle, right angle, obtuse angle ..

and also we use concurrent angles, corresponding angles, alternate angles, vertically opposite angles,..

..hope it helped a bit

5 0

3 years ago

Can someone help me plssssss

Akimi4 [234]

Answer:

16.5

Step-by-step explanation:

5 0

3 years ago

A farmer needs to ship 71 pumpkins to a grocery store if each crates can hold 19 pumpkins how many crates Will the farmer need ?

Lesechka [4]

Answer:

The farmer will need 7 crates.

Step-by-step explanation:

It is given that there are 71 pumpkins in total.

And each crate holds 19 pumpkins.

Let the number of crates required be "n".

The total number of pumpkins can be calculated by multiplying number of pumpkins in each crate with total number of crates.

Thus, the equation is

$19(n) = 71$

$n = \frac{71}{19} = 7$

Thus, the farmer needs 7 crates to hold total of 71 pumpkins.

3 0

3 years ago